From: Adam Ronthal (aronthal@cirba.com)
Date: Tue Jun 10 2003 - 11:17:25 EDT
Hi all...
Not quite sure how to resolve this one, but here are the symptoms:
We are running SDS 4.2.1 with mirrored disks in a RAID 1+0 configuration.
/var/adm/messages is showing:
Jun 9 15:14:23 osftserv02 md_stripe: [ID 641072 kern.warning] WARNING:
md: d11: read error on /dev/dsk/c4t36d0s6
.... which appears to indicate that we're losing a disk.
The system was rebooted and the /dev/md/rdsk/d1 was fsck'd (which was
probably a bad idea, as now there is no data in it).... however....
We ran a metareplace:
metareplace d1 c4t33d0s6 c4t42d0s6
which set that stripe to resync itself.... but the resyncing has been
running overnight and shows no sign on completing.
The output of metastat shows:
d1: Mirror
Submirror 0: d10
State: Needs maintenance
Submirror 1: d11
State: Needs maintenance
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 106029424 blocks
d10: Submirror of d1
State: Needs maintenance
Invoke: metareplace d1 c4t34d0s6 <new device>
Size: 106029424 blocks
Stripe 0: (interlace: 32 blocks)
Device Start Block Dbase State Hot Spare
c4t32d0s6 0 No Maintenance
c4t42d0s6 0 No Resyncing
c4t34d0s6 0 No Maintenance
d11: Submirror of d1
State: Needs maintenance
Invoke: after replacing "Maintenance" components:
metareplace d1 c4t36d0s6 <new device>
Size: 106029424 blocks
Stripe 0: (interlace: 32 blocks)
Device Start Block Dbase State Hot Spare
c4t35d0s6 0 No Last Erred
c4t36d0s6 0 No Last Erred
c4t37d0s6 0 No Last Erred
d2: Mirror
Submirror 0: d20
State: Needs maintenance
Submirror 1: d21
State: Needs maintenance
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 70684712 blocks
d20: Submirror of d2
State: Needs maintenance
Invoke: after replacing "Maintenance" components:
metareplace d2 c4t39d0s6 <new device>
Size: 70684712 blocks
Stripe 0: (interlace: 32 blocks)
Device Start Block Dbase State Hot Spare
c4t38d0s6 0 No Maintenance
c4t39d0s6 0 No Last Erred
d21: Submirror of d2
State: Needs maintenance
Invoke: metareplace d2 c4t41d0s6 <new device>
Size: 70684712 blocks
Stripe 0: (interlace: 32 blocks)
Device Start Block Dbase State Hot Spare
c4t40d0s6 0 No Last Erred
c4t41d0s6 0 No Maintenance
So the main questions are:
1) Is our d1 partition lost? (we can restore from backups)
2) How do I interpret the state of the d2 mirror and how do I recover from it?
Thanks in advance, will summarize to the list.
-Adam
_______________________________________________
sunmanagers mailing list
sunmanagers@sunmanagers.org
http://www.sunmanagers.org/mailman/listinfo/sunmanagers
This archive was generated by hypermail 2.1.7 : Wed Apr 09 2008 - 23:26:33 EDT