advfs panic

[rottereau]

an advfs domain panic has occured. how can i check the domain without reboot because jobs on the machine are running.
thanks

[rottereau]

i have one more message when i try to do a ls command: I/O error.
and with a cd command i have Permission denied reply.
thanks for your help

[Ajay Agarwal]

You can use fixfdmn and salvage utility. Check the manpages for more information.

[Hein van den Heuvel · Accepted solution]

The IO error message is omnious.
Get ready to restore a backup to a fresh disk. You do have backups rights?

Before you attempt to fix any AdvFS structure you need to know the actual disk is working properly.

Check error logs for further details.
Also try some none-filesystem commands like dd if=/dev/rdisk/xxx of=/dev/null iseek=... bs=...

I know it is 'old school', but I've been relatively lucky re-seating disks.
If that makes the disk useable again, then be sure to review the backup / restore needs anyway.

How about disk storages redunancy like raid-1 or raid-5? Now? In the near future?

Hope this helps,
Hein.

[Ivan Ferreira]

The procedure should be:

Ensure that the file system is umounted.

Run salvage to try to save some data if you don't have a recent backup.

Run /sbin/advfs/verify to the domain.

If this won't fix the error, run fixfdmn.

If this won't fix the error, re-create the domain and restore the data.

[Arch_Muthiah]

You can check the binary.errlog using dia utility.

Archunan

[Arch_Muthiah]

We knew that domain panics render the filesystem unavailable until the next mount. but you said, you don't want to reboot the system...but without dismount and mount, we won't get correct result out of fixfdmn.

Try first with fixdmn with "-n" option, once fixdmn examined the domain, then check domain output log file.


Archunan

[Arch_Muthiah]

Just go thru this AdvFS Administration manual under "Recovering from a Domain Panic"
http://161.114.87.216/docs/advfs_ref/advfs_51b/tips51b.pdf

Archunan