topic Re: HP UX Possible Disk Errors in Operating System - HP-UX

HP UX Possible Disk Errors

Ron Twiggs — Wed, 11 Feb 2004 11:11:43 GMT

I ran script supplied by Steven Protter called disk.status(a nice tool). It returned several error indications. I then did the following and received these messages. My ultimate goal here is to invoke "make_recovery". We are running HP-UX 10.20 Please help.

mv /etc/lvmtab /etc/lvmtab.backup
vgscan -a

Creating "/etc/lvmtab"
vgscan: Physical volume "/dev/dsk/c1todo" is not a block special file.
Couldn't stat physical volume "/dev/dsk/c1t0d0":
Invalid argument
Physical Volume "/dev/dsk/c1t2d0" contains no LVM information
The Volume Group /dev/sqdeal/group was not matched with any Physical Volumes.

Re: HP UX Possible Disk Errors

Cheryl Griffin — Wed, 11 Feb 2004 11:15:37 GMT

"/dev/dsk/c1todo" appears to be an invalid disk name. Check /dev/dsk and compare this to ioscan.
# ll /dev/dsk/c1*
# ioscan -fnC disk
# diskinfo /dev/rdsk/c1todo

Re: HP UX Possible Disk Errors

Pete Randall — Wed, 11 Feb 2004 11:16:21 GMT

Ron,

I feel like I'm missing part of the picture here. What errors did this "script" give you and from what commands in the script? Why would this lead you to run "vgscan -a"? What does "ioscan -f" tell you about /dev/dsk/c1t0d0 (I'm assuming that /dev/dsk/c1todo is a typo)?

Pete

Re: HP UX Possible Disk Errors

Steven E. Protter — Wed, 11 Feb 2004 11:16:51 GMT

I have had the same issue in the past.

The fix was to run vgexport on the volume group and then vgimport it.

If vgimport fails you may need to rebuild the volume group from scratch. Obviously a backup prior to starting this is critical.

A few searches that might help.

http://us-support2.external.hp.com/emse/bin/doc.pl/sid=394512371cad33b60d?todo=search&searchtext=vgexport+vgimport+vgcreate&x=28&y=12&searchcriteria=allwords&searchtype=SEARCH_TRAINER&searchtype=SEARCH_FORUMS&searchcategory=ALL&rn=25&presort=rank

You should be able to cut and paste the necessary procedures out of any of the threads above.

Proceed with caution and backups.

SEP

Re: HP UX Possible Disk Errors

Fabio Ettore — Wed, 11 Feb 2004 11:21:52 GMT

Hi,

it sounds like a typo somewhere, I never heard that name for a device file before.
Otherwise

# insf -e
# vgscan -v

Best regards,
Ettore

Re: HP UX Possible Disk Errors

Sridhar Bhaskarla — Wed, 11 Feb 2004 12:57:23 GMT

Hi,

I would go with Pete's analysis first.

What errors did you originally see that prompted you to run vgscan?.

Looks like the device files for the disk at c1t0d0 got messed up somehow.

Running the following may help you as said before.

#ioscan -f
#insf -e
#vgscan -v (as you already moved lvmtab)

-Sri