Patent Document

BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    This invention relates to storage system configuration and more particularly relates to enabling a system administrator to perform uninterrupted configuration of a storage system. 
         [0003]    2. Description of the Related Art 
         [0004]    A common data storage system is depicted in  FIG. 1 . The common data storage system may include a logical hierarchy of physical components. For example, a typical storage system may include one or more hard disks  106  for storing data. The hard disks  106  may be organized into one or more arrays  104 . Often such arrays  104  are mirrored for data backup and redundancy on a second array  104 . A typical array  104  includes one or more hard disks  106 . Most common arrays  104  include several hard disks  106 . The next logical level of the storage hierarchy is a rank  102 . The rank  102  typically includes one or more arrays  104  of hard disks  106 . 
         [0005]    In a common storage system, the ranks  102 , arrays  104  and hard disks  106  are arranged into a logical hierarchy using configuration information. The configuration information is typically stored across the hard disks  106 . A storage manager may generate the configuration information and store it on the hard disks  106 . The configuration information defines the logical relationship between the physical devices. The storage manager may, for example, create an array  104  of multiple hard disks  106 . The configuration information defining the relationship is then stored on the hard disks  106 . 
         [0006]    However, configuration of complex logical structures in a large storage system may be difficult and time consuming. This is especially the case when a logical relationship already exists and must be modified. For example, if the storage manager needs to delete a rank  102  to define a new logical relationship between the hard disks  106  arranged within the rank  102 , each of the disks will need to be reformatted to delete the current configuration information. In a typical system, which includes several hard disks  106 , reformatting may take several hours. In common systems, the reformatting process must be completed before the rest of the configuration job can be completed. 
         [0007]    One problem with the common storage system is that the system administrator typically needs to check back on the system repeatedly to see if the disks have finished reformatting before he can proceed with reconfiguration of the hard disks  106 . Since a typical system administrator may be responsible for several storage systems, much of his time may be wasted on checking the systems to see if they are available for configuration. Since most system administrators are concerned about the availability of their storage systems to system users, many administrators will perform configuration jobs at night or on weekends. Thus, an entire night may be wasted on checking to see if hard disks  106  have been reformatted before continuing with the configuration job. 
         [0008]    Once the disks have been formatted, the storage manager typically retrieves the physical parameters of each of the hard disks  106  before continuing with configuration. The physical parameters may include the storage capacity, the disk rotation speed, driver or firmware information, and the like. The storage manager typically requires the physical parameters of the hard disks  106  for optimization of the logical configuration, and to generate new configuration information based on these parameters. The newly generated configuration data is typically stored on the hard disks  106 . However, the storing typically may not be performed until the hard disks  106  have been completely reformatted. Thus the storage manager is typically not able to continue with configuration of the logical hierarchy until the hard disks  106  have been reformatted. The storage manager may then generate and store the new configuration information on the hard disks  106 . 
       SUMMARY OF THE INVENTION 
       [0009]    From the foregoing discussion, it should be apparent that a need exists for an apparatus, system, and method that facilitate uninterrupted configuration of a storage system. Beneficially, such an apparatus, system, and method would streamline the configuration process, improving the efficiency of a typical storage manager, and allowing a storage system administrator to focus his attention on other tasks. 
         [0010]    The present invention has been developed in response to the present state of the art, and in particular, in response to the problems and needs in the art that have not yet been fully solved by currently available storage systems. Accordingly, the present invention has been developed to provide an apparatus, system, and method for uninterrupted storage configuration that overcome many or all of the above-discussed shortcomings in the art. 
         [0011]    The apparatus for uninterrupted storage configuration is provided with a plurality of modules configured to functionally execute the steps of generating a temporary location for storage configuration information, saving the storage configuration information to the temporary location, and copying the storage configuration information from the temporary location to a storage medium in response to a determination that the storage medium is physically configurable. In one embodiment, these modules include an initialization module, a storage manager interface, and a storage medium interface. 
         [0012]    In a further embodiment, the initialization module may further comprise a memory manager in communication with a memory device and configured to create a first temporary storage location in the memory device to store the configuration information. The storage manager interface may comprise a status module configured to indicate to the storage manager that the storage medium is available for configuration regardless of whether the storage medium is physically available for configuration. The storage medium interface may further comprise a storage monitor configured to determine whether the storage medium is physically configurable. 
         [0013]    The storage manager interface module may further comprise a parameter collection module configured to collect the physical parameters of the storage medium. In a further embodiment, the parameter collection module may further comprises a virtual image builder configured to generate a virtual image of the storage medium using the physical parameters collected by the parameter collection module. Additionally, the memory manager may be further configured to create a second temporary storage location in the memory device to store the virtual image of the storage medium. 
         [0014]    A system of the present invention is also presented for uninterrupted storage configuration. In one embodiment, the system includes a storage medium, a storage manager, and a virtual configuration apparatus. In a certain embodiment, the storage medium is configurable as part of a logical data storage hierarchy. The storage manager may be in communication with the storage medium, and configured to perform configuration operations on the storage medium. In one embodiment, the virtual configuration apparatus is in communication with the storage manager and the storage medium. 
         [0015]    The virtual configuration apparatus may be configured to generate a temporary location for storage configuration information. In a further embodiment, the virtual configuration apparatus may save the storage configuration information generated by the storage manager to the temporary location. Additionally, the virtual configuration apparatus may copy the storage configuration information from the temporary location to the storage medium in response to a determination that the storage medium is physically configurable. 
         [0016]    In a further embodiment, the virtual configuration apparatus is in communication with a memory device. In such an embodiment, the virtual configuration apparatus may be configured to create a first temporary storage location in the memory device to store the configuration information, and create a second temporary storage location in the memory device to store the virtual image of the storage medium. 
         [0017]    A method of the present invention is also presented for uninterrupted storage configuration. The method in the disclosed embodiments substantially includes the steps necessary to carry out the functions presented above with respect to the operation of the described apparatus and system. In one embodiment, the method includes generating a temporary location for storage configuration information. In a further embodiment, the method may include saving the storage configuration information generated by a storage manager to the temporary location. Additionally, the method may include copying the storage configuration information from the temporary location to a storage medium in response to a determination that the storage medium is physically configurable. 
         [0018]    Reference throughout this specification to features, advantages, or similar language does not imply that all of the features and advantages that may be realized with the present invention should be or are in any single embodiment of the invention. Rather, language referring to the features and advantages is understood to mean that a specific feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention. Thus, discussion of the features and advantages, and similar language, throughout this specification may, but do not necessarily, refer to the same embodiment. 
         [0019]    Furthermore, the described features, advantages, and characteristics of the invention may be combined in any suitable manner in one or more embodiments. One skilled in the relevant art will recognize that the invention may be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments of the invention. 
         [0020]    These features and advantages of the present invention will become more fully apparent from the following description and appended claims, or may be learned by the practice of the invention as set forth hereinafter. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0021]    In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings, in which: 
           [0022]      FIG. 1A  is a schematic block diagram illustrating a typical storage system configuration of the prior art; 
           [0023]      FIG. 2  is a schematic block diagram illustrating one embodiment of a system for uninterrupted storage configuration; 
           [0024]      FIG. 3  is a schematic block diagram illustrating one embodiment of an apparatus for uninterrupted storage configuration; 
           [0025]      FIG. 4  is a detailed schematic block diagram illustrating a detailed embodiment of an apparatus for uninterrupted storage configuration; 
           [0026]      FIG. 5  is a schematic flow chart diagram illustrating one embodiment of a method for uninterrupted storage configuration; 
           [0027]      FIG. 6  is a detailed schematic flow chart diagram illustrating a detailed embodiment of a method for uninterrupted storage configuration. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0028]    Reference throughout this specification to “one embodiment,” “an embodiment,” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases “in one embodiment,” “in an embodiment,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment. 
         [0029]    Furthermore, the described features, structures, or characteristics of the invention may be combined in any suitable manner in one or more embodiments. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention. 
         [0030]      FIG. 2  is a schematic block diagram illustrating one embodiment of a system  200  for uninterrupted storage configuration. In the depicted embodiment, the system  200  includes a storage manager  202 . The storage manager  202  may include a storage configuration process  204 . Additionally, the system  200  may include a virtual configuration apparatus  206 . In a further embodiment, the system  200  includes a logical hierarchy of storage media. The logical hierarchy may include a rank  208  divided into a plurality of arrays  210 ,  212 . The arrays  210 ,  212  may include one or more hard disks  214 - 218 . 
         [0031]    As depicted in  FIG. 2 , the storage manager  202  also includes a virtual configuration apparatus  206 . However, alternative embodiments of the system  200  may exist wherein the virtual configuration apparatus  206  is a separate device housed in an individual housing. Alternatively, the virtual configuration apparatus  206  may include an electronic circuit card housed within the housing of the storage manager  202 . In yet another embodiment, the virtual configuration apparatus  206  may include a signal bearing medium which holds machine-readable instructions. The instructions may be executable by a digital processor of the storage manager  202 , and configured to perform an operation for uninterrupted storage configuration. 
         [0032]    In one embodiment, the virtual configuration apparatus  206  is configured to generate a temporary location for storage configuration information, save the storage configuration information to the temporary location, and copy the storage configuration information from the temporary location to a storage medium in response to a determination that the storage medium is physically configurable. 
         [0033]    Structurally, the virtual configuration apparatus  206  is in communication with the storage manager  202 . In a particular embodiment, the virtual configuration apparatus  206  is in communication with a processor of the storage manager  202  configured to carry out a storage configuration process  204 . Additionally, the virtual configuration apparatus  206  may be in communication with a storage medium. As illustrated in  FIG. 2 , the virtual configuration apparatus is in communication with a storage medium. In the depicted embodiment, the storage medium includes hard disks  214 - 218 . 
         [0034]    In one embodiment, the virtual configuration apparatus  206  may be in communication with the storage medium through a data bus. For example, the virtual configuration apparatus  206  may be in communication with hard disks  214 - 218  using Small Computer System Interface (“SCSI”) cables, fiber optic data cables, Ethernet cables, or out of band RS-232 component interface cables. The virtual configuration apparatus  206  maybe in communication with the storage manager  202  in like manner. 
         [0035]    The hard disks  214 - 218  may be incorporated into a logical storage hierarchy. For example, a first hard disk  214  and a second hard disk  216  may be organized into a first array  210 . A third hard disk  218  may be included in a second array  212 . The first array  210  and the second array  212  may be included in a storage rank  208 . In certain embodiments, this logical hierarchy of storage media may be presented to a user of the storage system as a grouping of directories and subdirectories. Alternatively, the second array  212  may be mirrored to the first array  210  in order to generate a backup copy of the data stored on the first array  210 . Various logical topologies may be established and configured by a system administrator using the storage configuration process  204  on the storage manager  202 . 
         [0036]    In one embodiment, the storage configuration process  204  may include an executable file of compiled instructions. The executable file may be coded in various computer coding languages including C, C++, Basic, Java, and the like. In one embodiment, the storage configuration process  204  is run on a processor of the storage manager  202 . In certain further embodiments, the storage configuration process  204  may include operations for interacting with a storage system administrator. 
         [0037]    For example, the storage system administrator may load configuration requirements into the storage configuration process  204 . The storage configuration process  204  may then create configuration information, which is temporarily stored in a temporary location by the virtual configuration apparatus  206 . In response to a determination that the hard disks  214 - 216  are configurable, the virtual configuration apparatus  206  may copy the configuration information from the temporary location to the hard disks  214 - 218 . In such an example, the configuration process  204  may be uninterrupted in completing the configuration job when the virtual configuration apparatus  206  is employed. 
         [0038]      FIG. 3  is a schematic block diagram illustrating one embodiment of an apparatus  300  for uninterrupted storage configuration. In the depicted embodiment, the apparatus  300  is a virtual configuration apparatus  206  described in relation to the system  200  of  FIG. 2 . In one embodiment, the virtual configuration apparatus  206  includes an initialization module  302 , a storage manager interface  304 , and a storage medium interface  306 . 
         [0039]    The initialization module  302  may be in communication with the storage manager  202 . In such an embodiment, the initialization module may generate a temporary location for storage configuration information. The storage configuration process  204  on the storage manager  202  may generate the storage configuration information. In an alternative embodiment, the initialization module  302  may also be in communication with the storage manager interface  304  and the storage medium interface  306 . In such an embodiment, the initialization module  302  may also initialize or trigger the storage manager interface  304  and the storage medium interface  306  to perform various operations. 
         [0040]    In one embodiment, the storage manager interface  304  is in communication with the initialization module  302 . Alternatively, the storage manager interface  304  may be in communication with the storage manager  202 , and specifically to the storage configuration process  204  on the storage manager  202 . The storage manager interface  304  may be configured to save storage configuration information generated by the storage manager  202  to the temporary storage location created by the initialization module  302 . Specific embodiments of these modules and processes are discussed further with relation to  FIG. 4  below. 
         [0041]    Once the configuration information is stored in the temporary location, and in response to a determination that the storage medium is configurable, the storage medium interface  306  may copy the configuration information to the storage medium. For example, in response to a determination that the hard disks  214 - 218  have been successfully reformatted, the storage medium interface  306  may copy configuration information generated by the storage configuration process  204  on the storage manager from the temporary location to the hard disks  214 - 218 . 
         [0042]      FIG. 4  is a detailed schematic block diagram illustrating a detailed embodiment of a virtual configuration apparatus  206 . In the depicted embodiment, the virtual configuration apparatus  206  includes the initialization module  302 , the storage manager interface  304  and the storage medium interface  306  as described above with relation to  FIG. 3 . Additionally, the virtual configuration apparatus  206  may include a memory device  404 . 
         [0043]    In a further embodiment, the initialization module  302  may include a memory manager  402 . The memory manager  402  may be in communication with the memory device  404 . The memory manager  402  may be configured to create a first temporary storage location  406  in the memory device  404  to store the configuration information obtained by the storage manager interface  304  from the storage manager  202 . In a further embodiment, the memory manager  402  may additionally create a second location  408  in the memory device  404  to store a virtual image of the storage medium. The virtual image of the storage medium is discussed in further detail with regard to detailed embodiments of the storage medium interface  306  below. 
         [0044]    In one embodiment, the first location  406  and the second location  408  are list data structures created in the memory  404  of the virtual configuration apparatus  206 . In an alternative embodiment, the first and second locations  406 ,  408  may be created in a memory device  404  located on the storage manager  202 . In various embodiments, the first location  406  and the second location  408  may include a data array, a hash table, a table of pointers to strings or arrays of data, a portable data object, or other various forms of tables, arrays, and data structures. 
         [0045]    For example, the first location  406  may include pre-allocated space in a memory device  404  located on the storage manager  202 . The first location  406  may contain a list of data structures, wherein each member of the list represents a hard disk  214 - 218 , and each data structure contains the configuration information for the given hard disk  214 - 218 . In such an example, the first data structure in the list may contain configuration information for the first hard disk  214 . The second data structure in the list may contain configuration information for the second hard disk  216 , etc. In such an exemplary embodiment, the first location  406  temporarily holds the configuration information in the list of data structures until it is determined that the hard disks  214 - 218  are configurable. When it is determined that the hard disks  214 - 218  are configurable, the configuration information is copied to the hard disks  214 - 218  respectively. 
         [0046]    Additionally, the memory manager  402  may create a second temporary location  408  in the memory device  404  to store a virtual image of the storage medium. For example, the storage medium interface module  306  may include a parameter collection module  414 . In this exemplary embodiment, the parameter collection module  414  may collect physical parameters from the hard disks  214 - 218 . The physical parameters may include the disk&#39;s rotation speed, the classification or model of the disk, the disk capacity, and the disk interface type (e.g., Fibre Channel Arbitrated Loop (“FC-AL”), Serial Attached SCSI (“SAS”), Advanced Technology Attachment (“ATA”), Serial ATA (“SATA”), etc.) These physical parameters may be required by the storage configuration process  204  in order to carry out the configuration process. The typically, the storage configuration process  204  would be unable to obtain the parameters when the hard disks  214 - 218  are unavailable for configuration changes. 
         [0047]    However, the parameter collection module  414  may either collect the physical parameters prior to the hard disks  214 - 218  becoming unavailable to optimize performance, or the parameter collection module  414  may start collecting the physical parameters after the hard disks  214 - 218  are already unavailable. A virtual builder  416  may create a virtual image of the hard disks  214 - 218  using the physical parameters collected by the parameter collection module  414 . In one embodiment, the virtual builder  416  may organize the physical parameters collected by the parameter collection module  414  into lists and data structures. The order of the list corresponds to the individual hard disks  214 - 218 , and the data structures contain the physical parameters. This virtual image may be stored in the second temporary location  408  on the memory device  404 . In a particular embodiment, the lists and data structures of the first temporary location  406  are tied to the lists and data structures of the second temporary location  408  so that the configuration information accurately corresponds to the physical parameters. The temporary locations  406 ,  408  may be tied using registry pointers or the like. 
         [0048]    Once the virtual image of the storage medium and the first temporary location  406  for storing configuration information have been generated, the configuration process can continue regardless of whether the storage medium is physically configurable. In one embodiment, the storage manager interface  304  may include a status module  412 . The status module  412  may indicate to the storage manager  202  that the storage medium is available for configuration, even though the storage medium is not physically available for configuration. For example, the status module  412  may return a value indicating that the hard disks  214 - 218  are available for configuration to the storage configuration process  204 . The value may include a Boolean value, or some other flag, indicator, or like signal for indicating the availability of the hard disks  214 - 218 . In such an example, the storage configuration process  204  is tricked into continuing with the configuration procedure, even though it would not ordinarily do so. 
         [0049]    The storage manager interface  304  may additionally include a configuration collection module  410 . The configuration collection module  410  may be in communication with the configuration manager  202 , and receive configuration information form the storage configuration process  204 . In a typical system, the storage information would be written directly to the storage medium. However, in the depicted embodiment, the configuration collection module  410  collects the configuration information and stores it in the first temporary location  406 . 
         [0050]    Meanwhile, the storage monitor  418  may concurrently check the storage medium to determine whether the storage medium is physically configurable. In an alternative embodiment, the two operations may not be concurrent, but queued for execution in series. In one exemplary embodiment, the storage monitor  418  may include a daemon process, or some other background process, or processing thread. In a further embodiment, the storage monitor  418  may be triggered by the initialization module  302  upon initialization of the virtual configuration apparatus  206 . When the storage monitor  418  determines that the storage medium is configurable, the storage medium interface  306  may copy the configuration information from the first temporary location  406  to the storage medium. In a further embodiment, the first temporary location  406  and the second temporary location  408  may be deleted. A detailed example of one embodiment of a method for operating the modules of  FIG. 4  is described below with relation to the method of  FIG. 6 . 
         [0051]    The schematic flow chart diagrams that follow are generally set forth as logical flow chart diagrams. As such, the depicted order and labeled steps are indicative of one embodiment of the presented method. Other steps and methods may be conceived that are equivalent in function, logic, or effect to one or more steps, or portions thereof, of the illustrated method. Additionally, the format and symbols employed are provided to explain the logical steps of the method and are understood not to limit the scope of the method. Although various arrow types and line types may be employed in the flow chart diagrams, they are understood not to limit the scope of the corresponding method. Indeed, some arrows or other connectors may be used to indicate only the logical flow of the method. For instance, an arrow may indicate a waiting or monitoring period of unspecified duration between enumerated steps of the depicted method. Additionally, the order in which a particular method occurs may or may not strictly adhere to the order of the corresponding steps shown. 
         [0052]      FIG. 5  is a schematic flow chart diagram illustrating one embodiment of a method  500  for uninterrupted storage configuration. In one embodiment, the method starts when the initialization module  302  generates  502  a temporary location  406  for storage configuration information. The storage manager interface  304  may then save  504  the storage configuration information generated by the storage manager  202  to the temporary location  406 . The apparatus  300  may continue to monitor the storage medium until it is determined  506  that the storage medium is configurable. If it is determined  506  that the storage medium is configurable, then the storage medium interface  306  copies  508  the configuration information from the temporary location  408  to the storage medium and the method  500  ends. 
         [0053]    For example, the configuration process  204  on the storage manager  202  may delete a rank  208 . Each of the hard disks  214 - 218  within the rank  208  will be unavailable for configuration while they are being reformatted. However, the initialization module  302  may generate  502  a temporary location  408  for configuration information. The configuration manager interface  304  may then save  504  the configuration information to the temporary location  408  while the hard disks  214 - 218  are being reformatted. In response to a determination  506  that the hard disks  214 - 216  are configurable, the storage medium interface  306  may then copy  508  the configuration information from the temporary location  408  to the hard disks  214 - 218 . 
         [0054]      FIG. 6  is a detailed schematic flow chart diagram illustrating a detailed embodiment of a method  600  for uninterrupted storage configuration. In one embodiment, the method  600  includes operations of the virtual configuration apparatus  206 . The method  600  may also include receiving data or information generated by certain responses from other components of the system  200 , such as the storage manager  202 . 
         [0055]    In one embodiment, the method  600  starts when the storage manager initiates  602  a storage configuration process  204 . The storage configuration process  204  may trigger  604  a storage reconfiguration event. For example, the storage configuration process  204  may delete a rank  208 . In response to the delete operation, the hard disks  214 - 218  may become unavailable while being reformatted. The storage configuration process  204  may then invoke  606  the virtual configuration apparatus  206 . Alternatively, the virtual configuration apparatus  206  may be invoked  606  by the storage manager  202  at the same time as initiating  602  the storage configuration process. In another alternative embodiment, the virtual configuration apparatus  206  is invoked  606  by a user or another process within the storage manager  202 . 
         [0056]    The initialization module  302  may initialize  608  a temporary storage location for the configuration information. In a further embodiment, the initialization module  302  may also initialize  608  a temporary storage location for a virtual image of the storage medium. The parameter collection module  414  may then retrieve  610  the physical parameters of the storage medium. The virtual builder  416  may then generate  612  a virtual image of the storage medium using the physical parameters retrieved  610  by the parameter collection module  414 . 
         [0057]    The status module  412  may then trigger  614  the storage configuration process  204  to continue  616  with configuration tasks. In one embodiment, the configuration process  204  may then continue  616  configuring the storage medium based on the virtual image of the storage medium stored in the second temporary location  408 . The storage configuration process  204  may send  618  the configuration information to the configuration collection module  410  of the virtual configuration apparatus  206 . 
         [0058]    The configuration collection module  410  may store  620  the configuration information in the first temporary location  406 . The storage monitor  418  may continuously monitor  622  the storage medium to determine  624  whether the storage medium is available. If the storage monitor determines  624  that the storage medium is available for configuration, the storage medium interface  306  may copy  626  the configuration information stored in the first temporary location  406  to the storage medium, and the method  600  ends. 
         [0059]    In another exemplary embodiment, the storage manager  202  may initiate  602  the configuration process  204 . The configuration process  204  may trigger  604  a reconfiguration event on the hard disks  214 - 218  by deleting the rank  208 . In response to deleting the rank  208  the hard disks  214 - 218  are reformatted and unavailable for further configuration until the reformatting process is complete. However, the storage manager  202  may invoke  606  the virtual configuration apparatus  206 , so that the configuration process  204  may continue uninterrupted. 
         [0060]    The initialization module  302  of the virtual configuration apparatus  206  may then initialize  608  a temporary location for configuration information. In such an example, the memory manager  402  may generate a first temporary location  406  and a second temporary location  408  on the memory device  404  locate in the virtual configuration apparatus  206 . The initialization module  302  may additionally trigger the storage monitor  418  to monitor  622  the hard disks  214 - 218  to determine  624  whether the reformatting process is complete. 
         [0061]    The parameter collection module  414  of the storage medium interface  306  may then retrieve  610  the physical parameters from the hard disks  214 - 218 . In an alternative example, the parameter collection module  414  may have retrieved  610  the physical parameters prior to triggering  604  the storage reconfiguration event. The virtual builder  416  may then generate  612  a virtual image of the hard disks  214 , which includes physical parameters such as the rotation speed, and capacity of the hard disks  214 - 218 . The virtual builder may store the virtual image in the second temporary location  408  in the memory device  404 . 
         [0062]    The configuration manager interface  304  may then trigger  614  continuation  616  of the configuration process  204 . In an alternative embodiment, the trigger  614  may include a signal from the status module  412  indicating that the hard disks  214 - 218  are available for further configuration. The storage configuration process  204  may then continue the configuration process  616  uninterrupted by the reformatting event. The storage manager may then send  618  configuration information  618  generated by the storage configuration process  204  to the virtual configuration apparatus  206 . 
         [0063]    The configuration collection module  410  may store the configuration information in the first temporary location  406 . For example, the configuration collection module  410  may store an identifier indicating which rank  208  and array  210  the first hard disk  214  is assigned to operate within. When the storage monitor  418  determines  624  that the first hard disk  214  is available for configuration, the storage medium interface  306  may copy the configuration information from the first temporary location  406  to the first hard disk  214 . In a further embodiment, the virtual configuration apparatus  206  may delete the configuration information and virtual image corresponding to the first hard disk  214  when the configuration information has been successfully copied to the first hard disk  214 . 
         [0064]    The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Technology Category: 3