3Ware 3W-6800 User Guide - Page 54
Auto rebuild on power failure, drive in the array and starts the background rebuild of the mirrored - escalade drivers
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3ware Escalade Storage Switch User Guide Auto rebuild on power failure During driver startup 3ware's auto rebuild feature sets a flag indicating that the driver loaded. Upon an orderly shutdown the flag is rewritten, indicating a clean shutdown. During the next system power cycle the firmware queries the flag. For a RAID 1 configuration, if there was a problem, the firmware degrades the secondary drive in the array and starts the background rebuild of the mirrored drive. When the rebuild is complete the two halves of the mirror will be resynchronized. For a RAID 5 configuration, if there is a problem, the firmware starts the background verification that checks that the parity matches the data. 44 www.3ware.com
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3ware Escalade Storage Switch
User Guide
44
www.3ware.com
Auto rebuild on power failure
During driver startup 3ware’s auto rebuild feature sets a flag indi-
cating that the driver loaded. Upon an orderly shutdown the flag is
rewritten, indicating a clean shutdown. During the next system
power cycle the firmware queries the flag. For a RAID 1 configura-
tion, if there was a problem, the firmware degrades the secondary
drive in the array and starts the background rebuild of the mirrored
drive. When the rebuild is complete the two halves of the mirror
will be resynchronized. For a RAID 5 configuration, if there is a
problem, the firmware starts the background verification that
checks that the parity matches the data.