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If there is no Local Spare available, the controller will search for a
Global Spare. If there is a Global Spare, rebuild automatically begins
using the Global Spare.
Failed Drive Swap Detected: If neither a Local Spare Drive nor
Global Spare Drive is available, and the "Periodic Auto-Detect
Failure Drive Swap Check Time" is "Disabled," the controller will not
attempt to rebuild unless the user applies a forced-manual rebuild.
When the "Periodic Auto-Detect Failure Drive Swap Check Time" is
"Enabled" (i.e., a check time interval has been selected), the controller
will detect whether a faulty drive has been swapped (by checking the
failed drive's channel/ID). Once the failed drive has been replaced
with a healthy drive, the rebuild will begin immediately.
If the failed drive is not swapped but a local spare is added to the
logical drive, rebuild will begin with the spare.
If the S.M.A.R.T. function is enabled on drives and the reaction
scheme is selected for securing data on a failing drive, the spare will
also be used for restoring data. Please refer to Operation Manual for
more details.
1.4.2 Manual Rebuild
When a user applies a forced-manual rebuild, the controller will first
examine whether there is any Local Spare assigned to the logical
drive. If yes, it will automatically start to rebuild.
If there is no Local Spare available, the controller will search for a
Global Spare. If there is a Global Spare, logical drive rebuild will be
automatically conducted.
If none of the spares are available, the controller will examine the
SCSI channel and ID of the failed drive. Once the failed drive has
been replaced by a healthy one, it starts to rebuild using the new
drive. If there is no available drive for rebuilding, the controller will
not attempt to rebuild until the user applies another forced-manual
rebuild.
Introduction
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