Troubleshooting

CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems

Fixing “needs maintenance” messages

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Fixing “needs maintenance” messages

On rare occasions mirrors may get severely out of sync. An extreme example is when a disk is removed from a powered system without first being detached with a metadetach command. The situation is indicated by the appearance of a Needs maintenance message in a State line of a metastat response. For example:

#metastat d13: Mirror

Submirror 0: d11

State: Needs maintenance Submirror 1: d12

State: Pass: 1

Read option: roundrobin (default)

Write option: parallel (default)

Size: 2209680 blocks

d11: Submirror of d13

State: Needs maintenance

 

 

Invoke: metareplace d13

c0t0d0s0

Size: 2209680 blocks

 

 

Stripe 0:

 

 

 

Device

Start Block

Dbase State Hot Spare

c0t0d0s0

0

No

Okay

.

.

.

 

 

#

In such situations the metareplace command can force the recovery of the failed slice. The Invoke line of the metastat response leads the way. Given the response above, for example, you would enter the following:

#metareplace -e d13 c0t0d0s0

#metastat

d13: Mirror

Submirror 0: d11

State: Resyncing

Submirror 1: d12

State: Needs maintenance

. . .

#

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Lucent Technologies 585-210-940 manual Fixing needs maintenance messages, C0t0d0s0 Okay
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585-210-940 specifications

Lucent Technologies, founded in 1996 as a spin-off from AT&T, emerged as a leader in telecommunications, contributing significantly to the advancement of network technologies. The model 585-210-940, an innovative product from Lucent, exemplifies their commitment to providing cutting-edge solutions for communication networks.

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