Over the weekend an "air handler failed". Several LDAPs shutdown due to heat.

On the re-start, I was checking the system and upon performing a "metatstat | more" found some issues.

bash-2.05# metastat d0 |more
d0: Mirror
Submirror 0: d10
State: Needs maintenance
Submirror 1: d20
State: Okay
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 3769600 blocks (1.8 GB)

d10: Submirror of d0
State: Needs maintenance
Invoke: metareplace d0 c0t0d0s0 <new device>
Size: 3769600 blocks (1.8 GB)
Stripe 0:
Device Start Block Dbase State Reloc Hot Spare
c0t0d0s0 0 No Maintenance Yes


d20: Submirror of d0
State: Okay
Size: 3769600 blocks (1.8 GB)
Stripe 0:
Device Start Block Dbase State Reloc Hot Spare
c0t1d0s0 0 No Okay Yes


Device Relocation Information:
Device Reloc Device ID
c0t1d0 Yes id1,sd@SSEAGATE_ST318203LSUN18G_LRG55486000010451QCZ

So, I thought I would perform the maintenance.

First:
bash-2.05# metadetach -f d0 d10
d0: submirror d10 is detached

Next:
bash-2.05# metaclear -f d10
d10: Concat/Stripe is cleared

Next:
bash-2.05# metainit d10 2 1 c0t0d0s0 1 c0t1d0s0
metainit: ldap01: c0t1d0s0: has appeared more than once in the specification of d20

I thought this to be more of a general information statement, so I continued.

Next:
bash-2.05# metattach d0 d10
metattach: ldap01: d10: unit not set up

I am not sure what the error "metainit: ldap01: c0t1d0s0: has appeared more than once in the specification of d20" means.

I tried to Google portions of the message and found references to "soft partioning". I need to now how to re-attach the sub-mirror find out what this error means.

Thank You.

Was the drive replaced? If not why would you metadetach it?

Had the disk checked out in "format" (you can run a read test) you could have just run a metareplace.

What you were trying to do is create d10 as a concat of c0t0d0s0 and c0t1d0s0. Instead you need to create d10 for c0t0d0s0 and then mirror it with c0t1d0s0.

Run :

metainit -f d10 1 1 c0t0d0s0
metattach d0 d10


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From the "Sun Volume Manager Administration Guide" PDF 806-6111, Pg 112 "Responding to RAISD 1 Volume Component Failures"; subsection "How to Replace a Slice in a Submirror".

This section looked like the answer to the submirror issue I was trying to fix. This disk di not fail, but the mirror had issues.

The answer you gave me allowed for the re-attach. Thanks!

Between you and the Sun document, I should be able to clean all the other mirrors. Again, Thanks!

Glad it worked for you. Let us know if you need any more assistance.


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