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The RAID administration utility alerts the user via the speaker and display if a drive becomes
DDD or if a Predictive Failure Analysis (PFA) alert occurs. PFA support on disk drives
recognizes potentially bad drives, and alerts systems administrators allowing them to replace the
unit before a catastrophic drive failure. The PFA alert prompts you to replace the drive before
actual failure, so that a HSP is always present.
The RAID administration utility monitors RAID operations, displaying results on the RAID
Administration Screen and logging these RAID events to a file. You can specify whether you
want the utility to save the file to a diskette drive, local hard drive, or network hard drive,
however, the recommended policy is to use the diskette drive or network drive. This practice
makes it easier to recover from situations where the operating system is not accessible due to the
failure. The logs themselves are required to recover data from systems when multiple DDD
drives occur. The logs also provide essential RAID history for that server when troubleshooting
and isolating the defective part in cases where it is not the drive that is defective.
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