Storage devices that contain write caches are especially susceptible to data loss from power failure unless the manufacturer has taken measures to prevent this. Progress Software Corporation does not currently certify any specific storage devices to be used with the Progress database. However, some storage system vendors have demonstrated that their products are safe and effective. If you use exotic storage devices to increase performance or reliability of your systems, you should work with the device vendor to convince yourself that the device, like any other component of the system, will provide the level of reliability you need. You should buy only from reputable vendors who can demonstrate that their products meet your reliability objectives.
High performance is worth nothing if reliability is low.
While this is helpful, it is insufficient. A ups will not prevent data loss when a disk controller must be removed from a computer. If you feel unable to make a correct decision, hire someone to assist you.