When an Exadata Storage Server hard disk failure alert is received, what manual action must you
take to restore the system to full redundancy?
A.
Replace the disk and run MegaCLI to rebuild the degenerate mirror.
B.
No manual action is required because Automatic Storage Management (ASM) fast mirror
resync is automatic
C.
No manual action is required because ASM rebalancing isautomatic.
D.
Replace the disk and manually copy the mirror extents to the new drive.
E.
Run RMAN REPAIR FAILURE.
Explanation:
As soon as the Hard Disk failure is noticed by the MS (Management Server)
background process on the Cell, it will raise an alert that will also be published to Grid Control, if
configured. Immediately, due to Pro-Active Disk Quarantine, the ASM-, Grid- and Celldisks get
dropped. ASM rebalancing is triggered. You as the responsible Admin notice the alert and order a
replacement Disk resp. use a Spare Disk to plug it into the Cell after you plugged out the damaged
one. The Cell can stay online, because the Hard Disks are hot-pluggable.
No further administrative work to be done, typically.
C