Patent Publication Number: US-8116079-B2

Title: Storage device testing system cooling

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This U.S. patent application is a continuation-in-part of, and claims priority under 35 U.S.C. §120 from, U.S. patent application Ser. No. 12/698,575, filed on Feb. 2, 2010. This application is a continuation-in-part of, and claims priority under 35 U.S.C. §120 from, U.S. application Ser. No. 12/503,567, filed Jul. 15, 2009 now U.S. Pat. No. 7,920,380, now pending. The disclosures of both of these prior applications is considered part of the disclosure of this application and are incorporated herein by reference in their entirety. 
    
    
     TECHNICAL FIELD 
     This disclosure relates to cooling in storage device testing systems. 
     BACKGROUND 
     Storage device manufacturers typically test manufactured storage devices for compliance with a collection of requirements. Test equipment and techniques exist for testing large numbers of storage devices serially or in parallel. Manufacturers tend to test large numbers of storage devices simultaneously. Storage device testing systems typically include one or more racks having multiple test slots that receive storage devices for testing. 
     During the manufacture of disk drives or other storage devices, it is common to control the temperature of the storage devices, e.g., to ensure that the storage devices are functional over a predetermined temperature range. For this reason, the testing environment immediately around the storage devices can be varied under program control. In some known testing systems, sometimes called “batch testers,” the temperature of plural storage devices is adjusted by using cooling or heating air which is common to all of the storage devices. 
     Batch testers generally require all storage device tests to be at substantially the same temperature, and require all storage devices to be inserted or removed from the test system at substantially the same time. Storage devices generally vary substantially in both the time required to test them and the amount of time that each test requires a particular ambient temperature. Because of these variations, batch testers tend to inefficiently use available testing capacity. There are also known testing systems that allow separate control of the insertion, removal, and temperature of each storage device. These test systems tend to more efficiently use the available testing capacity, but require duplication of temperature control components across every test slot, or sharing of those components among a small number of test slots. 
     Some storage device test systems use heated or cooled air to heat or cool the storage device. For separate thermal control of each storage device, a separate closed-loop air flow is sometimes used, with heaters or coolers disposed in the air flow. In some examples, the storage device is allowed to self-heat, and thus only a cooler is used. Heating may also be enhanced by reducing or otherwise controlling the flow of the air, and cooling may also be enhanced by increasing the air flow. In some examples of separate thermal control of each storage device, air is drawn from ambient air outside of the tester, rather than through a cooler that draws heat from a closed loop air flow. 
     Disadvantages of systems with separate thermal controls for each test slot include the need for many separate thermal control components for each test slot (e.g., heaters, coolers, fans, and/or controllable baffles). In addition, efficient use of energy generally requires each test slot to have a closed loop air flow system during at least some of the operating time. A closed loop air flow system typically requires ducting for the air to flow in both directions, to complete a loop, which requires additional space for the air return path. In addition, coolers may create condensation when operating below the dew point of the air. The formation of condensation may be avoided at the cost of reduced cooling performance, by limiting the coolant temperature. Alternatively, the formation of condensation may be avoided controlling and/or removing the moisture content in the air. 
     SUMMARY 
     The present disclosure provides a storage device testing system that reduces the number of temperature control components generally required, while still allowing separate control of the temperature of each test slot, thus achieving greater test slot density and lower cost. The storage device testing system provides separate thermal control for each storage device test slot, with relatively fewer thermal control components, and without a separate closed loop air flow path for each test slot. The thermal control for a storage device testing system results in substantially no condensation forming in or near the test slot, without having to manage the moisture content of the air. The storage device testing system uses a common reservoir of cooled air, which is cooled by relatively few heat exchangers. Condensation formed on the heat exchangers is concentrated in relatively few locations and may be removed by conventional methods, such as evaporators or drains. Alternatively, the heat exchangers may be controlled to operate above the dew point. Air from the common reservoir is drawn though each test slot using a separate controllable air mover for each test slot. The amount of cooling may be controlled by the speed of the air mover. To heat a storage device received in a test slot, a heater may be placed in an inlet air path to the test slot, a direct contact heater may be placed on the received storage device, or the storage device may be allowed to self heat by reducing or shutting off the air flow through the test slot. In some implementations, the reservoir of cooled air is formed by the shape of the storage device testing system, rather than by a separate enclosure. The cooling air may also be used to cool other electronics disposed with in the storage device testing system. 
     One aspect of the disclosure provides a storage device transporter that includes a transporter body having first and second body portions. The first body portion is configured to be engaged by automated machinery for manipulation of the storage device transporter. The second body portion is configured to receive and support a storage device. The first body portion is configured to receive and direct an air flow over one or more surfaces of a storage device supported in the second body portion. 
     Implementations of the disclosure may include one or more of the following features. 
     In some implementations, the first body portion includes an air director having one or more air entrances for receiving air into the first body portion and directing air into the second body portion. The one or more air entrances can be configured to be engaged by automated machinery for manipulation of the storage device transporter. 
     In some examples, the second body portion includes first and second sidewalls arranged to receive a storage device therebetween. 
     In some cases, the first body portion can include one or more vision fiducials. 
     The storage device transporter can include a clamping mechanism that is operable to clamp a storage device within the second body portion. 
     In some implementations, the first body portion is configured to direct air over top and bottom surfaces of a storage device supported in the second body portion. 
     In certain implementations, the first body portion can include an air director having one or more air entrances for receiving air into the first body portion and directing air into the second body portion. The one or more air entrances can be arranged to register the storage device transporter in X, Y, and rotational directions when the storage device transporter is engaged by automated machinery. 
     In some examples, the second body portion defines a substantially U-shaped opening which allows air to flow over a bottom surface of a storage device supported in the storage device transporter. 
     Another aspect of the disclosure provides a test slot assembly that includes a storage device transporter and a test slot. The storage device transporter includes a transporter body having first and second body portions. The first body portion is configured to be engaged by automated machinery for manipulation of the storage device transporter, and the second body portion is configured to receive and support a storage device. The first body portion is configured to receive and direct an air flow over one or more surfaces of a storage device supported in the second body portion. The test slot includes a housing. The housing defines a test compartment for receiving and supporting the storage device transporter, and an open end that provides access to the test compartment for insertion and removal of the disk drive transporter. 
     Implementations of the disclosure may include one or more of the following features. In some implementations, the storage device transporter is completely removable from the test compartment. 
     In certain implementations, the storage device transporter is connected to the test slot in such a manner as to form a drawer for receiving a storage device. 
     Another aspect of the disclosure provides a storage device testing system that includes automated machinery and a storage device transporter. The storage device transporter includes a transporter body having first and second body portions. The first body portion is configured to be engaged by automated machinery for manipulation of the storage device transporter. The second body portion is configured to receive and support a storage device. The first body portion is configured to receive and direct an air flow over one or more surfaces of a storage device supported in the second body portion. 
     Implementations of the disclosure may include one or more of the following features. 
     In some implementations, the first body portion includes an air director having one or more air entrances for receiving air into the first body portion and directing air into the second body portion, and the one or more air entrances are configured to be engaged by the automated machinery for manipulation of the storage device transporter. 
     In certain implementations, the automated machinery includes a mechanical actuator adapted to engage the one or more air entrances. 
     In some implementations, the first body portion includes one or more vision fiducials, and the automated machinery includes an optical system for detecting the vision fiducials. 
     In certain implementations, the automated machinery includes posts and the first body portion includes one or more air entrances for receiving air into the first body portion and directing air into the second body portion. The air entrances are arranged to be engaged by the posts to register the storage device transporter in X, Y, and rotational directions when the storage device transporter is engaged by the automated machinery. 
     In some implementations, the first body portion includes a pair of slots, and the automated machinery includes a pair of claws operable to engage the slots. 
     In certain implementations, the storage device testing system includes a clamping mechanism that is operable to clamp a storage device within the second body portion. The automated machinery is operable to actuate the clamping mechanism. 
     In some implementations, the automated machinery includes a robotic arm and a manipulator attached to the robotic arm. The manipulator is configured to engage the storage device transporter. 
     The details of one or more implementations of the disclosure are set forth in the accompanying drawings and the description below. Other features, objects, and advantages will be apparent from the description and drawings, and from the claims. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG. 1  is a perspective view of a storage device testing system having racks arranged in a substantially circular configuration. 
         FIG. 2  is a top view of the storage device testing system shown in  FIG. 1 . 
         FIG. 3  is a perspective view of a storage device testing system and a transfer station. 
         FIG. 4  is a perspective view of a manipulator. 
         FIG. 5A  is a side perspective view of a storage device transporter. 
         FIG. 5B  is a front perspective views of the storage device transporter shown in  FIG. 4A . 
         FIG. 5C  is a bottom perspective views of a storage device transporter carrying a storage device. 
         FIG. 5D  is a side perspective view of a storage device transporter receiving a storage device. 
         FIG. 5E  is perspective view of a front panel of the storage device transporter. 
         FIGS. 6A and 6B  are perspective views of a rack receiving a test slot carrier holding test slots. 
         FIG. 7A  is a perspective views of a test slot carrier holding test slots, one of which is receiving a storage device transporter carrying a storage device. 
         FIG. 7B  is a rear perspective views of the test slot carrier of  FIG. 7A . 
         FIG. 7C  is a sectional view of a test slot carrier along line  6 C- 6 C in  FIG. 6A . 
         FIGS. 8A and 8B  are perspective views of a test slot receiving a storage device transporter carrying a storage device. 
         FIG. 8C  is a rear perspective view of a test slot. 
         FIG. 9  is a perspective view of an air mover. 
         FIGS. 10A and 10B  are perspective views of a rack of a storage device testing system showing an air flow path through the rack and test slots housed by the rack. 
         FIG. 11A  is an exploded perspective view of a test slot assembly including a storage device transporter. 
         FIG. 11B  is a perspective view of the test slot assembly of  FIG. 11A  including a storage device transporter in the form of a drawer assembled with a test slot. 
         FIGS. 12A and 12B  are perspective views of a storage device transporter carrying a storage device being received inserted into a test slot of a storage device testing system. 
         FIG. 13  is a sectional view of a test slot along line  13 - 13  in  FIG. 12A . 
         FIG. 14  is a side perspective view of a storage device transporter. 
         FIG. 15  is a front perspective view of a storage device transporter. 
         FIG. 16  is a bottom perspective view of a storage device transporter. 
         FIG. 17  is a perspective view of a storage device transporter receiving a storage device. 
         FIG. 18  is a perspective view of a test slot and a test slot cooling system in a rack of a storage device testing system. 
         FIG. 19  is a perspective view of an air cooler. 
         FIG. 20  is a perspective view of an air mover. 
         FIG. 21  is a top view of a test slot and a test slot cooling system in a rack of a storage device testing system showing an air flow path through the test slot and a test slot cooling system. 
         FIG. 22  is a side sectional view of a test slot showing an air flow path over the top and bottom surfaces of a storage device received in the test slot. 
     
    
    
     Like reference symbols in the various drawings indicate like elements. 
     DETAILED DESCRIPTION 
     Temperature regulation of a storage device can be an important factor during testing (e.g., validation, qualification, functional testing, etc.) of a storage device. One method of performing temperature regulation includes moving air over and/or about the storage device during testing. As will be discussed in detail, the volume, temperature, and flow path of the air moved with respect to the storage device during testing, inter alia, can each be factors in providing reliable, effective, and efficient temperature control of the storage device. 
     A storage device, as used herein, includes disk drives, solid state drives, memory devices, and any device that benefits from asynchronous testing for validation. A disk drive is generally a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces. A solid-state drive (SSD) is a data storage device that uses solid-state memory to store persistent data. An SSD using SRAM or DRAM (instead of flash memory) is often called a RAM-drive. The term solid-state generally distinguishes solid-state electronics from electromechanical devices. 
     Referring to  FIGS. 1-3 , in some implementations, a storage device testing system  100  includes at least one automated transporter  200  (e.g. robot, robotic arm, gantry system, or multi-axis linear actuator) defining a first axis  205  (see  FIG. 3 ) substantially normal to a floor surface  10 . In the examples shown, the automated transporter  200  comprises a robotic arm  200  operable to rotate through a predetermined arc about the first axis  205  and to extend radially from the first axis  205 . The robotic arm  200  is operable to rotate approximately 360° about the first axis  205  and includes a manipulator  210  disposed at a distal end  202  of the robotic arm  200  to handle one or more storage devices  500  and/or storage device transporters  800  to carry the storage devices  500  (see e.g.,  FIGS. 5A-5E ). Multiple racks  300  are arranged around the robotic arm  200  for servicing by the robotic arm  200 . Each rack  300  houses multiple test slots  330  configured to receive storage devices  500  for testing. The robotic arm  200  defines a substantially cylindrical working envelope volume  220 , with the racks  300  being arranged within the working envelope  220  for accessibility of each test slot  330  for servicing by the robotic arm  200 . The substantially cylindrical working envelope volume  220  provides a compact footprint and is generally only limited in capacity by height constraints. In some examples, the robotic arm  200  is elevated by and supported on a pedestal or lift  250  on the floor surface  10 . The pedestal or lift  250  increases the size of the working envelope volume  220  by allowing the robotic arm  200  to reach not only upwardly, but also downwardly to service test slots  330 . The size of the working envelope volume  220  can be further increased by adding a vertical actuator to the pedestal or lift  250 . A controller  400  (e.g., computing device) communicates with each automated transporter  200  and rack  300 . The controller  400  coordinates servicing of the test slots  330  by the automated transporter(s)  200 . 
     The robotic arm  200  is configured to independently service each test slot  330  to provide a continuous flow of storage devices  500  through the testing system  100 . A continuous flow of individual storage devices  500  through the testing system  100  allows varying start and stop times for each storage device  500 , whereas other systems that require batches of storage devices  500  to be run all at once as an entire testing load must all have the same start and end times. Therefore, with continuous flow, storage devices  500  of different capacities can be run at the same time and serviced (loaded/unloaded) as needed. 
     Referring to  FIGS. 1-3 , the storage device testing system  100  includes a transfer station  600  configured for bulk feeding of storage devices  500  to the robotic arm  200 . The robotic arm  200  independently services each test slot  330  by transferring a storage device  500  between the transfer station  600  and the test slot  330 . The transfer station  600  houses one or more totes  700  carrying multiple storage devices  500  presented for servicing by the robotic arm  200 . The transfer station  600  is a service point for delivering and retrieving storage devices  500  to and from the storage device testing system  100 . The totes  700  allow an operator to deliver and retrieve a collection of storage devices  500  to and from the transfer station  600 . In the example shown in  FIG. 3 , each tote  700  is accessible from respective tote presentation support systems  720  in a presentation position and may be designated as a source tote  700  for supplying a collection of storage devices  500  for testing or as a destination tote  700  for receiving tested storage devices  500  (or both). Destination totes  700  may be classified as “passed return totes” or “failed return totes” for receiving respective storage devices  500  that have either passed or failed a functionality test, respectively. 
     In implementations that employ storage device transporters  800  ( FIGS. 5A-5E ) for manipulating storage devices  500 , the robotic arm  200  is configured to remove a storage device transporter  800  from one of the test slots  330  with the manipulator  210 , then pick up a storage device  500  from one the totes  700  presented at the transfer station  600  or other presentation system (e.g., conveyor, loading/unloading station, etc.) with the storage device transporter  800 , and then return the storage device transporter  800 , with a storage device  500  therein, to the test slot  330  for testing of the storage device  500 . After testing, the robotic arm  200  retrieves the tested storage device  500  from the test slot  330 , by removing the storage device transporter  800  carrying the tested storage device  500  from the test slot  330  (i.e., with the manipulator  210 ), carrying the tested storage device  500  in the storage device transporter  800  to the transfer station  600 , and manipulating the storage device transporter  800  to return the tested storage device  500  to one of the totes  700  at the transfer station  600  or other system (e.g., conveyor, loading/unloading station, etc.). 
     Referring to  FIG. 4 , the manipulator  210  may include an optical system  212  and a mechanical actuator  240 . The optical system  212  may include a camera  220  and a light source  230 . A storage device  500  may be carried by the storage device transporter  800  ( FIGS. 5A-5E ) that is gripped by the manipulator  210  via the mechanical actuator  240 . 
     As illustrated in  FIGS. 5A-5E , the storage device transporter  800  includes a transporter body  810  having first and second portions  802 ,  804 . The first portion  802  of the transporter body  810  includes a manipulation feature  812  (e.g., indention, protrusion, aperture, etc.) configured to receive or otherwise be engaged by the manipulator  210  for transporting. The second portion  804  of the transporter body  810  is configured to receive a storage device  500 . In some examples, the second transporter body portion  804  defines a substantially U-shaped opening  820  formed by first and second sidewalls  822 ,  824  and a base plate  826  of the transporter body  810 . The storage device  500  is received in the U-shaped opening  820 .  FIGS. 5C-5D  illustrate an exemplary storage device  500  that includes a housing  510  having top, bottom, front, rear, left and right surfaces  512 ,  514 ,  516 ,  518 ,  520 ,  522 . The U-shaped opening  820  allows air moving through the test sot  330  to flow over the bottom surface  514  of the storage device  500 . The storage device  500  is typically received with its rear surface  518  substantially facing the first portion  802  of the storage device transporter body  810 . The first portion  802  of the transporter body  810  includes an air director  830  (front panel) that receives and directs air substantially simultaneously (e.g., in parallel) over at least the top and bottom surfaces  512 ,  514  of the storage device  500  received in the storage device transporter  800 . The air director  830  defines one or more air entrances  832   a - c  (e.g., aperture(s), slot(s), etc.) for receiving air into the first portion  802  of the transporter body  810  and directing it out into the second portion  804  of the transporter body  800 , such that the air can move over at least the top and bottom surfaces  512 ,  514  of the received storage device  500 . In some implementations, the air director  830  includes a guide (e.g., diverter, fin, plenum, etc.) for guiding the air over the received storage device  500 . 
     Referring to  FIG. 5A , there is seemingly no area left to include an additional mechanical protrusion or cavity for a gripper  242  ( FIG. 4 ) of the mechanical actuator  240  to engage. But, by designing the gripper  242 , such as illustrated in  FIG. 4 , such that it exploits cavities, rather than protrusions, it is possible to combine the functionality of the air entrances with the gripper  242  of the mechanical actuator  240 . In this example, (shown in close up in  FIG. 5E ), the gripper  242  can engage with the center rectangular cutout  832   a  and with the two round holes  832   b , allowing the air entrances to serve also as engagement features. 
     The round holes  832   a  allow posts  244  on the gripper  242  to register the storage device transporter  800  in the X and Y dimensions, as well as rotationally since multiple holes are used for registration. The rectangular cutout  832   a  contains internal slots  834  for claws  246   a ,  246   b  of the gripper  242  to engage and pull the storage device transporter  800  to a registration point on the face of the gripper  242  in the Z dimension. 
     As illustrated in  FIGS. 5A and 5C , sufficient area remains for mechanical rigidity and to place two fiducial marks  836  for the optical system  212  ( FIG. 3 ) to detect. Alternatively or additionally, the air entrances  832   a - c  themselves may be used as vision fiducials. 
     In some examples, the storage device transporter  800  includes a heater  860  that either provides conductive heating by direct contact with a received storage device  500  or convective heating by heating air flowing into and/or over the storage device transporter  800  and the received storage device  500 . A detailed description of the heater  860  and other details and features combinable with those described herein may be found in the following U.S. patent application Ser. No. 12/503,593, filed on Jul. 15, 2009, the entire contents of which are hereby incorporated by reference. 
     Some storage devices  500  can be sensitive to vibrations. Fitting multiple storage devices  500  in a single test rack  330  and running the storage devices  500  (e.g., during testing), as well as the insertion and removal of the storage device transporters  800 , each optionally carrying a storage device  500 , from the various test slots  330  in the test rack  300  can be sources of undesirable vibration. In some cases, for example, one of the storage devices  500  may be operating under test within one of the test slots  330 , while others are being removed and inserted into adjacent test slots  330  in the same rack  300 . Clamping the storage device transporter  800  to the test slot  330  after the storage device transporter  800  is fully inserted into the test slot  330  can help to reduce or limit vibrations by limiting the contact and scraping between the storage device transporters  800  and the test slots  330  during insertion and removal of the storage device transporters  800 . 
     In some implementations, the manipulator  210  is configured to initiate actuation of a clamping mechanism  840  disposed in the storage device transporter  800 . This allows actuation of the clamping mechanism  840  before the storage device transporter  800  is moved to and from the test slot  330  to inhibit movement of the storage device  500  relative to the storage device transporter  800  during the move. Prior to insertion in the test slot  330 , the manipulator  210  can again actuate the clamping mechanism  840  to release the storage device  500  within the transporter body  800 . This allows for insertion of the storage device transporter  800  into one of the test slots  330 , until the storage device  500  is in a test position engaged with the test slot  330  (e.g., a storage device connector  532  (e.g., electrical connector) of the storage device  500  ( FIG. 7C ) is engaged with a test slot connector  392  ( FIG. 7C ) (e.g., electrical connector) of the test slot  330 ). The clamping mechanism  840  may also be configured to engage the test slot  330 , once received therein, to inhibit movement of the storage device transporter  800  relative to the test slot  330 . In such implementations, once the storage device  500  is in the test position, the clamping mechanism  840  is engaged again (e.g., by the manipulator  210 ) to inhibit movement of the storage device transporter  800  relative to the test slot  330 . The clamping of the storage device transporter  800  in this manner can help to reduce vibrations during testing. In some examples, after insertion, the storage device transporter  800  and storage device  500  carried therein are both clamped or secured in combination or individually within the test slot  330 . A detailed description of the storage device transporter  800  and other details and features combinable with those described herein may be found in U.S. patent application Ser. No. 12/503,687, filed on Jul. 15, 2009, and in U.S. patent application Ser. No. 12/503,567, filed on Jul. 15, 2009. These applications are hereby incorporated by reference in their entireties. 
     In the examples illustrated in  FIGS. 6A and 6B , each rack  300  includes one or more carrier receptacles  310  each configured to receive a test slot carrier  320  that carries one or more test slots  330 . The test slot carrier  320  provides a collection of test slots  330  that allows for bulk loading of test slots  330  into a rack  300 . The rack  300  can be quickly serviced to change out different types of test slots  330  by removing one test slot carrier  320  having one type of test slots  330  from its respective carrier receptacle  310  and loading another carrier  320  having a different type or assortment of test slots  330  without having to modify the rack  300  to accommodate a particular mounting spacing for each type of test slot  330 . Some carrier receptacles  310  may have a common standard size for receiving complementary standard sized test slot carriers  320 . The number of test slot receptacles  324  any particular test slot carrier  320  carries may vary depending upon the type(s) of test slots  330  received therein. For example, a test slot carrier  320  will accommodate fewer relatively larger test slots  330  four receiving relatively larger storage devices  500  as compared to relatively smaller (thinner) test slots  300  for relatively smaller storage devices  500 . 
     Each rack  300  includes an air conduit  304  (also shown in  FIGS. 10A and 10B ) that provides pneumatic communication between each test slot  330  of the respective rack  300  and an exit  353  of the rack  300 . In some implementations, the air conduit  304  is formed by a space between the test slots  330  and a rear wall  303  of the rack  300 . The air conduit  304  can also be attached to an exterior of the rack  300 , such as the wedge shaped conduit  304  shown in  FIG. 6B . In some implementations, as shown in  FIG. 3 , the air conduit  304  is in pneumatic communication with a system air mover  190  (e.g., via a common system air conduit  345 ) and/or air exterior to the rack  300 , for moving air between the rack  300  and the environment around the rack  300 . In this case, the system air mover  190  can be pneumatically connected to every air conduit  304  in the storage device testing system  100  (e.g., via the common system air conduit  345 , which may include a bottom portion of the racks  300  below the test slots  330 ) to move air through each of the air conduits. The system air mover  190  moves air exterior of the racks  300  through the test slots  330  into the air conduits  304  and back out of the racks  300 . 
     In the example shown in  FIG. 6B , the air conduit  304  (also shown in  FIGS. 10A and 10B ) provides pneumatic communication between each test slot  330  of the respective rack  300  and an air heat exchanger  350 . The air heat exchanger  350  is disposed below the carrier receptacles  310  remote to received test slots  330 . The air heat exchanger  350  includes an air heat exchanger housing  352  defining an entrance  351 , an exit  353 , and an air flow path  305  therebetween. In some implementations, cooling elements  354  are disposed in the housing  352  in the air flow path  305  and a pump  356  delivers condensation accumulated from the air heat exchanger  350  to an evaporator  360 , which may be disposed on the respective rack  300  of the air heat exchanger  350  (e.g., above the carrier receptacles  310 ), or to a drain. The air heat exchanger  350  may include an air mover  358  that pulls the air from the air conduit  304  into the entrance  351  of the air heat exchanger housing  352  over the cooling elements  354 , if implemented, and moves the air out of the air heat exchanger housing exit  353  and out of the rack  300 . 
     Referring to  FIGS. 7A-7C , each test slot carrier  320  includes a body  322  having test slot receptacles  324  that are each configured to receive a test slot  330 . Each test slot  330  is configured to receive a storage device transporter  800 , which is configured to receive the storage device  500  and be handled by the manipulator  210  of the robotic arm  200 . In use, one of the storage device transporters  800  is removed from or delivered to one of the test slots  330  by the robotic arm  200 . Each test slot receptacle  324  may include one or more isolators  326  (e.g., rubber grommet) to dampen or isolate vibrations between the carrier body  322  and a received storage device  500 . A detailed description of the test slot carrier  320  and other details and features combinable with those described herein may be found in the following U.S. patent applications filed Feb. 2, 2010, entitled “Test Slot Carriers”, inventors: Brian Merrow et al., and having assigned Ser. No. 12/698,605, the entire contents of which are hereby incorporated by reference. 
     Referring to FIGS.  7 C and  8 A- 8 C, each test slot  330  includes a test slot housing  340  for receipt by the rack  300  or a test slot receptacle  324  of a test slot carrier  320 . The test slot housing  340  has first and second portions  342 ,  344 . The first portion  342  of the test slot housing  340  defines a device opening  346  sized to receive a storage device  500  and/or a storage device transporter  800  carrying the storage device  500 . The second portion  344  of the test slot housing  340  includes an air exit  348 , electronics  390  (e.g., circuit board(s)), and an optional air mover  900 . The electronics  390  are in communication with a test slot connector  392 , which is configured to receive and establish electrical communication with a storage device connector  532  of the storage device  500 . The electronics  390  also include a slot-rack connector  394  for establishing electrical communication with the rack  300 . Air moved through the test slot  300  can be directed over the electronics  390 . 
       FIG. 9  illustrates an exemplary air mover  900  which has an air entrance  902  that receives air along a first direction  904  and an air exit  906  that delivers air along a second direction  908  substantially perpendicular to the first direction. Changing the direction of air movement within the air mover  900  eliminates the efficiency loss of changing the air flow direction within a conduit, thereby increasing the cooling efficiency of the storage device testing system  100 . In some implementations, the air mover  900  includes an impeller  910  rotating at about 7100 revolutions per minute (rpm) to produce an air flow rate of up to about 0.122 m 3 /min (4.308 CFM) (at zero static pressure) and an air pressure of up to about 20.88 mmH 2 O (0.822 inch H 2 O) (at zero air flow). In some instances, the air mover  900  is the largest component of a cooling system for a test slot  330 . The substantially horizontal placement of the air mover  900  within the storage device testing system  100  allows for a relatively lower overall height of the test slot  330  (allowing greater test slot density in the rack  300  and/or test slot carrier  320 ). 
     FIGS.  7 C and  10 A- 10 B illustrate a flow path  305  of air through test slots  330  and a rack  300  for regulating the temperature of a storage device  500  received in the storage device testing system  100 . The air mover  900  of each test slot  330  housed in the rack  300  moves a flow of air from an exterior space of the rack  300  into at least one entrance  832  of the air director  830  of a storage device transporter  800  received in the test slot  330 . The air flow is directed substantially simultaneously over at least top and bottom surfaces  512 ,  514  of the storage device  500  received in the storage device transporter  800 .  FIG. 7C  provides a side sectional view of the test slot  330  and the air flow path  305  over the top and bottom surfaces  512 ,  514  of the received storage device  500 . The air may also flow over other surfaces of the storage device  500  (e.g., front, back, left and right sides  516 ,  518 ,  520 ,  522 ). If no storage device  500  or storage device transporter  800  is received in the test slot  330 , the air can flow directly through the first portion  342  of the test housing  340  to the air mover  900 . The air mover  900  moves the air through the second portion  344  of the test slot housing  340  and out an air exit  348  ( FIG. 7B ) of the test slot  330  into the air conduit  304 . The air moves through the air conduit  304  to the air heat exchanger  350  or the environment exterior to the rack  300 . After passing through the air heat exchanger  350  the air is released back into the exterior space of the rack  300 . 
     In some examples, the air mover  900  pulls the air into the air director  830  of storage device transporter  800 , which directs the air flow  305  over at least the top and bottom surfaces  512 ,  514  of the storage device  500 . The air mover  900  receives the flow of air from over the received storage device  500  along a first direction and delivers the air flow from the air mover  900  to the exit  348  of the test slot  330  along a second direction substantially perpendicular to the first direction. 
     In the examples shown, the storage device transporter  800  provides closure of the device opening  346  of the test slot housing  340  once received therein. As the air mover  900  moves the air to circulate along the air path  305 , the air moves from the first portion  342  of the test slot housing  340  along a common direction to the second portion  344  of the test slot housing  340  while traversing the entire length of the received storage device  500 . Since the air moves substantially concurrently along at least the top and bottom surfaces  512 ,  514  of the storage device  500 , the air provides substantially even cooling of the storage device  500 . If the air was routed along one side of the storage device first, such as the top surface  512 , and then directed along another side sequentially second, such as the bottom surface  514 , the air would become preheated after passing over the first side of the storage device  500  before passing over any additional sides of the storage device, thereby providing relatively less efficient cooling than flowing air over two or more sides of the storage device  500  substantially concurrently and/or without recirculation over the storage device  500  before passing through the air heat exchanger  350 . 
     A method of performing storage device testing includes presenting one or more storage devices  500  to a storage device testing system  100  for testing at a source location (e.g., a loading/unloading station  600 , storage device tote  700 , test slot(s)  330 , etc.) and actuating an automated transporter  200  (e.g. robotic arm) to retrieve one or more storage devices  500  from the source location and deliver the retrieved storage device(s)  500  to corresponding test slots  330  disposed on a rack  300  of the storage device testing system  100 . The method includes actuating the automated transporter  200  to insert each retrieved storage device  500  in its respective test slot  330 , and performing a test (e.g., functionality, power, connectivity, etc.) on the storage devices  500  received by the test slot  330 . The method may also include actuating the automated transporter  200  to retrieve the tested storage device(s)  500  from the test slot(s)  330  and deliver the tested storage device(s)  500  to a destination location (e.g., another test slot  330 , a storage device tote  700 , a loading/unloading station  600 , etc). 
     A method of regulating the temperature of a storage device  500  received in a storage device testing system  100  includes moving a flow of air into an air entrance  346  of a test slot housing  340  of a test slot  330  of a rack  300 , moving the air flow over a storage device  500  received in the test slot  330 , moving the air out an air exit  348  of the test slot housing  340  of the test slot  330 , and releasing the air exteriorly of the rack  300 . This method may be executed on a storage device testing system  100  to reduce the relative number of temperature control components generally required, while still allowing separate control of the temperature of each test slot  330 . The method allows the storage device testing system  100  to have separate thermal control for each storage device test slot  330 , with relatively fewer thermal control components, and without a separate closed loop air flow path for each test slot  330 . In some examples, the method results in substantially no condensation forming in or near the test slot(s)  330 , without having to manage the moisture content of the air. 
     In some implementations, the method includes using a common reservoir of cooled air, which may cooled by one or more air heat exchangers  350 . Condensation formed on the air heat exchanger(s)  350  is concentrated in relatively few locations and may be removed by conventional methods, such as evaporators or drains. Alternatively, the heat exchanger(s)  350  may be controlled to operate above the dew point. Air from the common reservoir is drawn though each test slot  330  using a separate controllable air mover  900  for each test slot  330 . The amount of cooling may be controlled by the speed of the air mover  900 . To heat a storage device  500  received in a test slot  330 , a heater  860  may be disposed so as to heat the received storage device  500  either directly or indirectly. For example, the heater  860  maybe placed in the inlet air path  346  to the test slot  330  and/or in direct contact with the received storage device. In some examples, the method includes allowing the received storage device  500  to self heat by reducing or shutting off the air flow through the test slot  300 . In some implementations, the reservoir of cooled air is formed by the shape of the storage device testing system  100 , rather than by a separate enclosure. The cooling air may also be used to cool other electronics disposed with in the storage device testing system  100 . 
     In some examples, the air is moved to flow substantially simultaneously over at least the top and bottom surfaces  512 ,  514  of the storage device  500  received in the test slot  330 . In some implementations, the method includes pulling air exterior of the rack  300  into a first portion  342  of the test slot housing  340  with an air mover  900  disposed in the test slot housing  340  and then moving the air through a second portion  344  of the test slot housing  340  over electronics  350  disposed in the second portion  344  and out an air exit  348  of the test slot housing  340 . The method may include receiving the flow of air into the air mover  900  along a first direction  904  and moving the flow to the air exit  906  of the air mover  900  along a second direction  908  substantially perpendicular to the first direction  904 . In some examples, the method includes delivering the air flow out of the air mover  900  at an air flow rate of up to about 0.122 m3/min (4.308 CFM) and an air pressure of up to about 20.88 mmH2O (0.822 inchH2O). 
     The method may include moving the air flow through an air director  830  of a storage device transporter  800  holding the storage device  500  and received in the test slot  330 . The air director  830  defines one or more air entrances  832  that receive and direct the flow of air over at least the top and bottom surfaces  512 ,  514  of the storage device  500 . The storage device transporter  800  includes a body  800  having first and second portions  802 ,  804 . In some examples, the method includes receiving the storage device  500 , which has top, bottom, front, rear, right, and left side surfaces  512 ,  514 ,  516 ,  518 ,  520 ,  522 , in the storage device transporter  800  such that the rear surface  518  substantially faces the first body portion  802  of the storage device transporter body  800 . 
     In some implementations, the method includes moving the flow of air from the test slot  330  to an air heat exchanger  350  through an air conduit  304  that provides pneumatic communication therebetween. The air heat exchanger  350 , in some examples, includes an air mover  358  that pulls the air from the air conduit  304  into the entrance  351  of the air heat exchanger housing  352  over the cooling elements  354  and moves the air out of the air heat exchanger housing exit  353  and out of the rack  300 . The method may also include pumping condensation of the air heat exchanger  350  to an evaporator  360  disposed on the rack  300  or pumping to a drain, or allowing the condensate to drain through gravity. 
     OTHER IMPLEMENTATIONS 
     A number of implementations have been described. Nevertheless, it will be understood that various modifications may be made without departing from the spirit and scope of the disclosure. For example, the air may flow in the opposite direction from that given in the exemplary embodiments. Air may also flow over only one side of the storage device, instead of over both the top and bottom surfaces. In systems with one air mover per test slot, the test slot air mover may be disposed in a number of locations, some not physically connected to the slot. Thermal control of the test slot may include means of heating the air by the addition of a heater in the inlet stream of the test slot. While implementations described above included a storage device transporter in the form of a removable carrier that is entirely removable from a test slot, in some implementations the storage device transporter is not entirely removable from the test slot, but instead remains connected to the test slot in the form of a drawer. For example,  FIGS. 11A and 11B  illustrate an implementation of a test slot assembly in which the storage device transporter  800 ′ includes projections  805  which slide within recessed slots  335  in the walls of the test slot  330 ′. Forward movement and complete removal of the storage device transporter  800 ′ is impeded (e.g., prevented) by the end position of the recessed slots  335 . Thus, in this example, the storage device transporter  800 ′ operates as a drawer that is slidable relative to the test slot  330 ′ allowing insertion and removal of storage devices to and from the test slot  330 ′. 
       FIGS. 12A-22  illustrate another implementation of a test slot that may be employed in storage device testing systems, such as described above. In the example illustrated in  FIGS. 12A-13 , each test slot  1330  is configured to receive the storage device transporter  1800 . The storage device transporter  1800  is configured to receive the storage device  500  and be handled by the manipulator  210  ( FIG. 4 ) of the robotic arm  200  ( FIG. 1 ). In use, one of the storage device transporters  1800  is removed from or delivered to one of the test slots  1330  by the robotic arm  200 . Each test slot  1330  includes a test slot housing  1340  received by the rack  300  and having first and second portions  1342 ,  1344 . The first portion  1342  of the test slot housing  1340  defines a device opening  1346  sized to receive a storage device  500  and/or a storage device transporter  1800  carrying the storage device  500  as well as a first air opening  1326  (i.e., air entrance). The second portion  1344  of the test slot housing  1340  defines a second air opening  1348  (i.e., air exit) and houses electronics  1390 . 
     As illustrated in  FIGS. 14-17 , the storage device transporter  1800  includes a transporter body  1810  having first and second portions  1802 ,  1804 . The first portion  1802  of the transporter body  1810  includes a manipulation feature  1812  (e.g., indention, protrusion, etc.) configured to receive or otherwise be engaged by the manipulator  210  for transporting. The second portion  1804  of the transporter body  1810  is configured to receive a storage device  500 . In some examples, the second transporter body portion  1804  defines a substantially U-shaped opening  1820  formed by first and second sidewalls  1822 ,  1824  and a base plate  1826  of the transporter body  1810 . The storage device  1500  is received in the U-shaped opening  1820  and supported by at least the base plate  1826 .  FIG. 17  illustrates an exemplary storage device  500  that includes a housing  510  having top, bottom, front, rear, left and right surfaces  512 ,  514 ,  516 ,  518 ,  520 ,  522 . The storage device  500  is typically received with its rear surface  518  substantially facing the first portion  802  of the storage device transporter body  1800 . The first portion  1802  of the transporter body  1810  includes an air director  1830  that receives and directs air substantially simultaneously (e.g., in parallel) over at least the top and bottom surfaces  512 ,  514  of the storage device  500  received in the storage device transporter  1800 . The air director  1830  defines an air cavity  1831  having an air entrance  1832  and first and second air exits  1834 ,  1835 . The air director  1830  directs air received through its air entrance  1832  out of the first and second air exits  1834 ,  1835 . The first air exit  1834  directs air over the top surface  512  of the received storage device  1800  and the second air exit  1835  directs air over the bottom surface  514  of the received storage device  500 . 
     In some implementations, the air director  1830  includes a plenum  1836  disposed in the cavity  1831  for directing at least a portion of the air received through the air entrance  1832  out through the first air exit  1834  and over at least the bottom surface  514  of the received storage device  500 . In some implementations, the air director  1830  is weighted to stabilize the storage device transporter  1800  against vibration. For example, the plenum  1836  can be weighted or fabricated of a material having a suitable weight. Air entering into the air cavity  1831  can also flow over a partition  1838  (above which is the second air exit  1835 ) to flow over at least the top surface  512  of the storage device  500 . With the storage device  500  received within the transporter body  1810 , the storage device transporter  1810  and the storage device  500  together can be moved by the automated transporter  200  ( FIG. 1 ) for placement within one of the test slots  310 . 
     Some storage devices  500  can be sensitive to vibrations. Fitting multiple storage devices  500  in a single test rack  300  and running the storage devices  500  (e.g., during testing), as well as the insertion and removal of the storage device transporters  550 , each optionally carrying a storage device  500 , from the various test slots  1330  in the test rack  300  can be sources of undesirable vibration. In some cases, for example, one of the storage devices  500  may be operating under test within one of the test slots  1330 , while others are being removed and inserted into adjacent test slots  1330  in the same rack  300 . Clamping the storage device transporter  1800  to the test slot  1330  after the storage device transporter  550  is fully inserted into the test slot  1330  can help to reduce or limit vibrations by limiting the contact and scraping between the storage device transporters  1800  and the test slots  1330  during insertion and removal of the storage device transporters  1800 . 
     In some implementations, the manipulator  210  (see, e.g.,  FIGS. 2 &amp; 4 ) is configured to initiate actuation of a clamping mechanism  1840  disposed in the storage device transporter  1800 . This allows actuation of the clamping mechanism  1840  before the storage device transporter  1800  is moved to and from the test slot  1330  to inhibit movement of the storage device  500  relative to the storage device transporter  1800  during the move. Prior to insertion in the test slot  1330 , the manipulator  210  can again actuate the clamping mechanism  1840  to release the storage device  500  within the transporter body  1810 . This allows for insertion of the storage device transporter  1800  into one of the test slots  1330 , until the storage device  500  is in a test position engaged with the test slot  1330  (e.g., a storage device connector  532  of the storage device  500  ( FIG. 17 ) is engaged with a test slot connector  1392  ( FIG. 18 ) of the test slot  1330 ). The clamping mechanism  1840  may also be configured to engage the test slot  1330 , once received therein, to inhibit movement of the storage device transporter  1800  relative to the test slot  1330 . In such implementations, once the storage device  500  is in the test position, the clamping mechanism  1840  is engaged again (e.g., by the manipulator  210 ) to inhibit movement of the storage device transporter  1800  relative to the test slot  1330 . The clamping of the storage device transporter  1800  in this manner can help to reduce vibrations during testing. In some examples, after insertion, the storage device transporter  1800  and storage device  500  carried therein are both clamped or secured in combination or individually within the test slot  1330 . 
     Referring again to  FIGS. 12A-13  as well as  FIG. 18 , the rack  300  includes a test slot cooling system  1900  disposed adjacent to each test slot  1330 . The test slot cooling system  1900  includes a housing  1910  having first and second air openings  1912 ,  1914  (i.e., air exit and air entrance). The housing  1910  receives air from the test slot  1330  through the second air opening  1914  and directs the air through an air cooler  1920  to an air mover  1930  (e.g., blower, fan, etc.). In the example shown in  FIG. 19 , the air cooler  1920  includes an air cooler body  1922  having one or more fins or plates  1924  disposed thereon. The air cooler  1920  is coupled or attached to a cooling tube  1926  through which a chilled liquid (e.g., water) flows. The chilled cooling tube  1926  conducts heat from the air cooler  1920  which receives heat through convection from air flowing over the fins  1924 . The air mover  1930  moves the air through the first air opening  1912  back into the test slot  1330  through its first air opening  1326 . The first air opening  1326  of the test slot housing  1340  is substantially aligned with the first air opening  1912  of the test slot cooling system housing  1900 , and the second air opening  1348  of the test slot housing  1340  is substantially aligned with the second air opening  1914  of the test slot cooling system housing  1900 . In examples using the storage device transporter  1800 , the first air opening  1326  of the test slot housing  1340  is substantially aligned with the air entrance  1832  of the transporter body  1810  for delivering temperature controlled air over a storage device  500  carried by the storage device transporter  1800 . 
       FIG. 20  illustrates an exemplary air mover  1930  which has an air entrance  1932  that receives air along a first direction  1934  and an air exit  1936  that delivers air along a second direction  1938  substantially perpendicular to the first direction. Changing the direction of air movement within the air mover  1930  eliminates the efficiency loss of changing the air flow direction within a conduit, thereby increasing the cooling efficiency of the test slot cooling system  1900 . In some implementations, the air mover  1930  includes an impeller  1935  rotating at about 7100 revolutions per minute (rpm) to produce an air flow rate of up to about 0.122 m 3 /min (4.308 CFM) (at zero static pressure) and an air pressure of up to about 20.88 mmH 2 O (0.822 inchH 2 O) (at zero air flow). In some instances, the air mover  1930  is largest component of the test slot cooling system  1900  and therefore dictates the size of the test slot cooling system  1900 . In some implementations, the air mover  1930  has length L of about 45 mm, a width W of about 45 mm, and a height H of about 10 mm, such as DC Blower BFB04512HHA-8A60 provided by Delta Electronics, Inc., Taoyuan Plant, 252 Shang Ying Road, Kuei San Industrial Zone, Yaoyuan Shien, Taiwan R.O.C. The substantially horizontal placement of the air mover  1930  within the test slot cooling system  1900  allows for a relatively lower overall height of the test slot cooling system  1900 , and therefore a relatively lower overall height of an associated test slot  1330  (allowing greater test slot density in the rack  300 ). The ability of the air mover  1930  to redirect the air flow path  1950  ( FIG. 21 ) reduces air resistance in the air flow path  1950 , thereby lowering the power consumption of the air mover  1930  to maintain a threshold air flow rate. 
       FIG. 21  provides a top view of the rack  300  and illustrates the air flow path  1950  through the test slot cooling system  1900  and the test slot  1330 .  FIG. 22  provides a side sectional view of the test slot  1330  and the air flow path  1950  over the top and bottom surfaces  512 ,  514  of the received storage device  500 . The air may also flow over other surfaces of the storage device  500  (e.g., front, back, left and right sides  516 ,  518 ,  520 ,  522 ). The air mover  1930  delivers air through the first air opening  1912  (i.e., air entrance) of the test slot cooling system housing  1900  and the first air opening  1326  (i.e., air entrance) of the test slot housing  1340  into the air director  1830  of the storage device transporter body  1810 . The air flows through the air entrance  1832  of the air director  1830  in to the air cavity  1831 . The air flows out of the first air exit  1834  of the air director  1830  (e.g., as directed by the plenum  1836 ) and over at least the bottom surface  514  of the storage device  500 . The air also flows through the second air exit  1835  (e.g., over the partition  1838 ) and over at least the top surface  512  of the storage device  500 . The air moves from the first portion  1342  of the test slot housing  1340  to the second portion  1344  of the test slot housing  1340 . The air may move over the electronics  1390  in the second portion  1344  of the test slot housing  1340 . The air exits the test slot housing  1340  through its second air opening  1348  (i.e., air exit) into the second air opening  1914  (i.e., air entrance) of the test slot cooling system housing  1900 . The air travels over the air cooler  1920  (e.g., over the air cooler fins  1924 ) which is disposed in or adjacent to the air flow path  1950  and then back into the air entrance  1932  of the air mover  1930 . 
     In the examples shown, the storage device transporter  1800  provides closure of the device opening  1346  of the test slot housing  1340  once received therein. The air director  1830  of the storage device transporter  1800  and the air mover  1930  are situated near the inlet of the device opening  1346  of the test slot housing  1340 . As the air mover  1930  moves the air to circulate along the air path  1950 , the air moves from the first portion  1342  of the test slot housing  1340  along a common direction to the second portion  1344  of the test slot housing  1340  while traversing the entire length of the received storage device  500 . Since the air moves substantially concurrently along at least the top and bottom surfaces  512 ,  514  of the storage device  500 , the air provides substantially even cooling of the storage device  500 . If the air was routed along once side of the storage device first, such as the top surface  512 , and then directed along another side sequentially second, such as the bottom surface  514 , the air would become preheated after passing over the first side of the storage device  500  before passing over any additional sides of the storage device, thereby providing relatively less efficient cooling than flowing air over two or more sides of the storage device  500  substantially concurrently and/or without recirculation over the storage device  500  before passing through the air cooler  1920 . 
     A method of performing storage device testing includes presenting one or more storage devices  500  to a storage device testing system  100  for testing at a source location (e.g., a loading/unloading station  600 , storage device tote  700 , test slot(s)  310 , etc.) and actuating an automated transporter  200  (e.g. robotic arm) to retrieve one or more storage devices  500  from the source location and deliver the retrieved storage device(s)  500  to corresponding test slots  1330  disposed on a rack  300  of the storage device testing system  100 . The method includes actuating the automated transporter  200  to insert each retrieved storage device  500  in its respective test slot  1330 , and performing a test (e.g., functionality, power, connectivity, etc.) on the storage devices  500  received by the test slot  1330 . The method may also include actuating the automated transporter  200  to retrieve the tested storage device(s)  500  from the test slot(s)  310  and deliver the tested storage device(s)  500  to a destination location (e.g., another test slot  310 , a storage device tote  700 , a loading/unloading station  600 , etc). 
     A method of regulating the temperature of a storage device  500  received in a storage device testing system  100  includes delivering a flow of air into an air entrance  1346  of a test slot housing  1340  and directing the air flow substantially simultaneously over at least the top and bottom surfaces  512 ,  514  of the storage device  500 . The method may include delivering the air flow to an air director  1830  that directs the air flow over at least the top and bottom surfaces  512 ,  514  of the storage device  500 . In some implementations, the method includes supporting the storage device  500  in a storage device transporter  1800  received in the test slot housing  1340 . The storage device transporter  1800  includes a body  1810  having first and second portions  1802 ,  1804 . The first storage device transporter body portion  1802  includes the air director  1830  and the second storage device transporter body portion  1804  is configured to receive the storage device  500 . The storage device  500  has top, bottom, front, rear, right, and left side surfaces  512 ,  514 ,  516 ,  518 ,  520 ,  522  and is received with its rear surface  518  substantially facing the first body portion  1802  of the storage device transporter body  1810 . The method may include weighting the air director  1830 , in some examples the plenum  1836 ) to reduce movement of the storage device transporter while received by the storage device testing system. 
     In some implementations, the method includes delivering the air flow into an air entrance  1832  of the air director  1830 . The air director  1830  directs the air received through the air entrance  1832  out first and second air exits  1834 ,  1835  of the air director  1830 . The first air exit  1834  directs air over at least the bottom surface  514  of the received storage device  500  and the second air exit  1835  directs air over at least the top surface  512  of the received storage device  500 . The air director  1830  may define a cavity  1831  in pneumatic communication with the air entrance  1832  and air exits  1834 ,  1835  of the air director  1830 . The air director  1830  includes a plenum  1836  disposed in the cavity  1831  for directing at least a portion of the air received in the cavity  1831  out of the first air exit  1834 . In some examples, the method includes weighting the plenum  1836  to reduce movement of the storage device transporter  1800  while received by the storage device testing system  100  (e.g., while received in the test slot  1330 ). 
     In some implementations, the method includes directing the flow of air to an air mover  1930  in pneumatic communication with the air entrance  1325  of the test slot housing  1340 . The air mover  1930  delivers the flow of air into the air entrance  1326  of a test slot housing  320  with the air flow moving along a closed loop path  950  ( FIG. 15 ). The method may  1340  receiving the flow of air into the air mover  1930  along a first direction  1934  and delivering the air flow to the air entrance  1326  of the test slot housing  1340  along a second direction  1938  substantially perpendicular to the first direction  1934 . The method includes directing the flow of air over an air cooler  1920  disposed in the air flow path  1950  upstream of the air mover  1930 . In some examples, the method includes delivering the air flow into the air entrance  1326  of the test slot housing  1340  (e.g., via the air mover  1930 ) at an air flow rate of up to about 0.122 m 3 /min (4.308 CFM) and an air pressure of up to about 20.88 mmH 2 O (0.822 inchH 2 O). 
     Accordingly, other implementations are within the scope of the following claims.