NEC Express5800/R110d-1E Guía de usuario descargar pdf (Pagina 95)

Operation when the Logical Drive is offline due to failure of Physical Device

If you continue to use the RAID System with lost redundancy of a Logical Drive and another Physical Device is failed further, the redundancy of the Logical Drive is lost completely

(two or more Physical Devices of RAID Level 1 or 5 is failed, three or more Physical Devices of RAID Level 6 is failed). The status of a Logical Drive without redundancy is offline

(with its [Status] being [Offline]). The data in a Logical Drive in the offline status is lost. Replace all failed Physical Devices and Rebuild the RAID System.

Figure 25 Display of RAID Viewer / raidcmd (Under lost redundancy of Logical Drive)

Become [Fatal] by

existence of

[Offline] 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 : Offline

Structure and Status of RAID System

Tree View of RAID Viewer

Property of RAID Viewer

Property of raidcmd

Logical Drive

[Offline]

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

RAID Controller #1 Physical Device #3

ID : 2

Enclosure : 1

Slot : 3

Device Type : HDD

Interface : SAS

Vendor/Model : Seagate ST12345678

Firmware Version : BK09

Serial Number : 1111

Capacity : 146GB

Status : Failed

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

[Online]

[Failed]

#1 [Offline]

RAID Level: 5

Two failed Physical

Devices

[Failed]

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

RAID Controller #1 Physical Device #3

ID : 2

Enclosure : 1

Slot : 3

Device Type : HDD

Interface : SAS

Vendor/Model : Seagate ST12345678

Firmware Version : BK09

Serial Number : 1111

Capacity : 146GB

Status : Failed

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

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