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5.
Rebuild
: Add a disk and rebuild a critical RAID array. The following diagram shows a rebuild session in
progress.
6.
Change cache Policy
: Toggle Between Write Through and Write Back
Write Through
: Lower write performance because data is written directly to HDD. Data cannot be lost due
to power failure or some other circumstance.
Write Back
:
Higher write performance but chances of data lose are greater since data still resides in
cache
7.
Rename
: Rename the array
4.2 Logical - Spare Pool
When creating redundant RAID arrays (1, 5, 6, 10 or 50) a Spare HDD can be configured to automatically help
rebuild a degraded redundant RAID. Users can assign any free storage into spare pool. And any disk is in spare pool
can be removed as well. The following diagrams show how to operate “spare pool”.