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Operating System - Tru64 Unix
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advfs inquiry

Regular Advisor

advfs inquiry

dear gurus,

how can check and repair a disk or domain in advfs? when i use the advfsstat, i got an i/o error

#advfsstat domain_01
advfsstat: unable to get info for domain 'domain_01'
advfsstat: error = I/O error

i need to backup the content of the disk.
Venkatesh BL
Honored Contributor

Re: advfs inquiry

1) What is the OS/patch version?
2) Do you see any errors in the /var/adm/messages file?
Ivan Ferreira
Honored Contributor

Re: advfs inquiry

These are the tools available:

/sbin/advfs/verify - Check domain consistency
/sbin/advfs/fixfdmn - If verify does not works, run this utility, and then run verify again (v5 only)
/sbin/advfs/salvage - Can save data from an corrupted domain. If fixfdmn/verify can't make your domain work, this could save your data.

The problem is that you get I/O error, this could be a hardware problem, or a failed RAID set. You won't be able to recover data from a hardware problem. Do a hardware verification first.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Rob Leadbeater
Honored Contributor

Re: advfs inquiry


Have a look in /etc/fdmns/domain_01 to see what physical device(s) are being used in the domain. You should then probably look at the output of hwmgr view devices and/or hwmgr show scsi to determine what is causing the I/O error...

Hope this helps,


Regular Advisor

Re: advfs inquiry