topic Re: error during mounting in Operating System - HP-UX

error during mounting

Mohammad Ashfaqur Rahma — Sat, 02 Jan 2010 04:16:26 GMT

Dear All,

when I am trying to mount a file system, facing error

# /opt/VRTS/bin/mount /dev/vx/dsk/dg_name/lvol_name /mount/point

the fsck says
# /opt/VRTS/bin/fsck /dev/vx/rdsk/dg_name/lvol_name
UX:vxfs fsck: ERROR: V-3-20012: not a valid vxfs file system
invalid super-block
UX:vxfs fsck: ERROR: V-3-20694: cannot initialize aggregate
file system check failure, aborting ...

i create new file system
newfs -F vxfs /dev/vx/rdsk/dg_name/lvol_name

, and after that fsck and mount is successful.

After that when i tried to mount then after Business Copy operation, the same situation occur again.

Any Idea??

Re: error during mounting

Steven Schweda — Sat, 02 Jan 2010 05:57:35 GMT

> After that when i tried to mount then after
> Business Copy operation, the same situation
> occur again.

"Doctor, it hurts when I do this."

"Don't do that."

With my weak psychic powers, I know nothing,
but perhaps if you explained exactly what
"Business Copy operation" means to you, then
someone might be able to tell you what went
wrong when you did it.

Re: error during mounting

Mohammad Ashfaqur Rahma — Sat, 02 Jan 2010 06:55:57 GMT

@Steven :

In my system i do BC operation. This time after BC operation i found the bellow

/opt/VRTS/bin/fsck /dev/vx/rdsk/dg_name/lvol_name
UX:vxfs fsck: ERROR: V-3-20012: not a valid vxfs file system
invalid super-block
UX:vxfs fsck: ERROR: V-3-20694: cannot initialize aggregate
file system check failure, aborting ...

BC means Business Copy:
http://h18000.www1.hp.com/products/storage/software/bizcopyeva/index.html

note i am using XP12 as my storage.

Re: error during mounting

Steven Schweda — Sat, 02 Jan 2010 16:14:30 GMT

> In my system i do BC operation.

If you think that this tells me anything
useful about what you did, then think again.

> BC means Business Copy:
> http://h18000.www1.hp.com/products/storage/software/bizcopyeva/index.html

That's nice, but it still tells me nothing
about what you did.

I know nothing, but I'd guess that even a
"Business Copy" operation needs to be told
what to copy from where to where. If you
copy some kind of garbage onto your new file
system, then perhaps you can damage that file
system.

Re: error during mounting

johnsonpk — Sun, 03 Jan 2010 07:40:52 GMT

Hi Mohammad,

few questions..
1) What is the status of primary volume ?
2) Have you done splitting of BC in the middle of copy process?
3) have you added any LUN to primary volume recently ?

Re: error during mounting

Vishu — Sun, 03 Jan 2010 09:01:28 GMT

Hi Mohammad,

What it seems from your post that after the BC, you mirroed the old disk to the new disk again and again your disk super-block gone bad.

i suggest performing a restore from your backup after you do newfs and then try doing BC establish from this volume to your BCV volumes, not from BCV volumes to this volumes.

Re: error during mounting

Mohammad Ashfaqur Rahma — Sun, 03 Jan 2010 21:07:28 GMT

@johnsonpk :

no, no and no

@vishu : i have no backup of SVOL.

by the way
ALL,
The issue has been solved.

Steps are,

/opt/VRTS/bin/vxdctl enable

/opt/VRTS/bin/vxdg -Cf import DG_NAME

/opt/VRTS/bin/vxrecover -g DG_NAME -sb

/opt/VRTS/bin/fsck /dev/vx/rdsk/DG_NAME /mount/point

/opt/VRTS/bin/mount -F vxfs /dev/vx/dsk/DG_NAME/LVOL_NAME /mount/point

i rebooted the machine, before the activity(i do not know is it mendetory)

Re: error during mounting

Mohammad Ashfaqur Rahma — Sun, 03 Jan 2010 21:10:44 GMT

ALL,
The issue has been solved.

Steps are,

/opt/VRTS/bin/vxdctl enable

/opt/VRTS/bin/vxdg -Cf import DG_NAME

/opt/VRTS/bin/vxrecover -g DG_NAME -sb

/opt/VRTS/bin/fsck /dev/vx/rdsk/DG_NAME /mount/point

/opt/VRTS/bin/mount -F vxfs /dev/vx/dsk/DG_NAME/LVOL_NAME /mount/point

i rebooted the machine, before the activity(i do not know is it must or not )