HP LeftHand SAN Solutions Support Document - Service Notes - VSA 7.0 for VMware ESX

12
Intermediate Disk Status Reporting
• When a disk is powered on or inserted in a drive, certain intermediate
states may be reported. For example, if a drive is added to a degraded
RAID 5 array, it may temporarily say Normal, before correctly changing to
Degraded and then to Rebuilding.
Swapping One Or More Disks Across Controllers Causes Data Loss [NSM
260] (3342)
If the storage module powers up with one or more drives foreign to the
configuration of a controller, data corruption occurs.
Scenario
The storage module is moved to a different physical location. Before the move,
the storage module is powered down and all drives are removed. While
replacing the drives back in the drive bays, one or more drives are accidentally
inserted into slots handled by a different controller. When the storage module
is powered up, data corruption occurs.
Workaround
Label the drives before removing them so that you can replace them in the
correct bays.
When Replacing A Disk, If New Disk Is Seated Improperly, Disk Status
Displays DMA Off With Yellow Exclamation Icon [NSM 150, NSM
200] (2848)
Scenario
A disk is replaced in an storage module. After the RAID rebuild is completed,
the disk status displays DMA Off. This status occurs due to an improperly
seated disk.
Workaround
Repeat the procedures for replacing the disk, paying careful attention to
reseat the disk properly in the drive bay.
After the RAID rebuild is finished, the disk status should be correct.