
Operation when failed Physical Device is replaced to recover RAID System
Using the RAID System continuously with the redundancy of a Logical Drive remaining degraded may cause the data in the Logical Drive to be lost when another Physical Device
is failed further. Recover a Logical Drive of degraded redundancy by Hot Spare or replacement of the failed Physical Device.
If Hot Spare or replacement of a failed Physical Device operates Rebuild, the status of the Physical Device changes during the rebuilding (with its [Status] changed to
[Rebuilding]).
Figure 26 Display of RAID Viewer /raidcmd (Rebuilding of Physical Device)
existence of
> raidcmd property -tg=ld -c=1 -l=1
RAID Controller #1 Logical Drive #1
ID : 0
Disk Array Information : 1 (order 1/1)
RAID Level : RAID 5
Sector Format : 512
Capacity : 135GB
Stripe Size : 256KB
Cache Mode (Setting) : Write Through
Cache Mode (Current) : Write Through
Type : Logical Drive
Status : Degraded
Structure and Status of RAID System
[Ready]
(Failed)
RAID Level: 5
Dedicated Hot Spare
[Rebuilding]
Device
> raidcmd property -tg=pd -c=1 -p=e252s4
RAID Controller #1 Physical Device e252s4
Enclosure : 252
Enclosure Position : Internal
Slot : 4
ID : 21
Device Type : HDD
Interface : SAS
Vendor/Model : SEAGATE ST936701SS
Firmware Version : 0003
Serial Number : 3LC05ZZG
Sector Format : 512
Capacity : 33GB
Status : Ready
S.M.A.R.T. : Normal
Power Status : On
>
> raidcmd property -tg=pd -c=1 -p=e252s5
RAID Controller #1 Physical Device e252s5
Enclosure : 252
Enclosure Position : Internal
Slot : 5
ID : 36
Device Type : HDD
Interface : SAS
Vendor/Model : SEAGATE ST3300657SS
Firmware Version : N007
Serial Number : 3SJ04423
Sector Format : 512
Capacity : 67GB
Status : Rebuilding
S.M.A.R.T. : Normal
Power Status : On
>
After Rebuild starts, various results such as [Status]
changes [Ready] cannot recognize existence, and
[Status] keep [Failed] are thought by RAID Controller's
kind and the kind of the occurring issue as for a Physical
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