NEC Express5800/R110d-1E Guide de l'utilisateur télécharger pdf (Page 94)

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 24 Display of RAID Viewer /raidcmd (Rebuilding of Physical Device)

Become [Warning] by

existence of

[Degraded] node.

> raidcmd property -tg=ld -c=1 -l=1

RAID Controller #1 Logical Drive #1

ID : 0

Physical Device Number : 1, 2, 3

Disk Array Number : 1

RAID Level : 5

Stripe Size : 64KB

Capacity : 146GB

Cache Mode (Current) : Write Back

Cache Mode (Setting) : Auto Switch

Status : Degraded

Structure and Status of RAID System

Tree View of RAID Viewer

Property of RAID Viewer

[Rebuilding]

[Ready]

(Failed)

#1 [Degraded]

RAID Level: 5

[Online]

Dedicated Hot Spare

[Rebuilding]

Logical Drive

[Degraded]

Failed Physical

Device

[Ready]

> raidcmd property -tg=pd -c=1 -p=3

RAID Controller #1 Physical Device #3

ID : 0

Enclosure : 1

Slot : 3

Device Type : HDD

Interface : SAS

Vendor/Model : Seagate ST12345678

Firmware Version : BK09

Serial Number : 1111

Capacity : 146GB

Status : Ready

S.M.A.R.T. : Normal

> raidcmd property -tg=pd -c=1 -p=4

RAID Controller #1 Physical Device #4

ID : 0

Enclosure : 1

Slot : 4

Device Type : HDD

Interface : SAS

Vendor/Model : Seagate ST12345678

Firmware Version : BK09

Serial Number : 1111

Capacity : 146GB

Status : Rebuilding

S.M.A.R.T. : Normal

Property of raidcmd

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

1 2 ... 89 90 91 92 93 94 95 96 97 98 99 ... 105 106

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NEC Express5800/R110d-1E Guide de l'utilisateur Page 94

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