IBM 866011U - Netfinity 5500 - 8660, Hardware Maintenance Manual

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Device Management
Drive State Drive Information
EMP
SBY
RDY
DHS
SHS
HSP
DDD
ONL
RBL
Channel 1
Bay 2
SCSI ID 1
Vendor IBM
Serial Number 003056669
Size 1003 MB
State ONL
Soft Event 0
Hard Event 0
Misc Event 0
Parity Event 0
PFA No
Set Device State Rebuild Drive OK
2. Click on the radio button that indicates the desired
state.
Note
If you set a DDD drive to ONL without performing
a Rebuild (RBL) operation and that drive is part
of a critical (CRT) logical drive, the server might
lose data.
3. Click on Set Device State.
Rebuilding drives:
When a hard disk drives goes
defunct (DDD), a Rebuild operation is required to
reconstruct the data for the device in its respective disk
array. You can rebuild only RAID level 1 and RAID level 5
logical drives. The data stored in stored in RAID level 0
logical drives cannot be reconstructed; therefore, RAID
level 0 logical drives are blocked.
After the rebuild process completes, you can unblock the
RAID level 0 logical drives, which redefines their state as
OKY and allows access to them once again. But
remember, the RAID level 0 logical drive might contain
damaged data. You must re-create, install, or restore the
data for the RAID level 0 logical drive from the most recent
backup disk or tape. (See “Unblocking logical drives” on
page 38 for more information.)
To rebuild a drive:
1. Click on the DDD device on the Main Screen of the
Administration and Monitoring utility program.
2. Click on Rebuild Device.
A screen similar to the following appears.
Netfinity 5500 - Type 8660
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