topic Re: fuser ...? in Operating System - HP-UX

fuser ...?

mw_4 — Thu, 30 May 2002 06:42:52 GMT

Hi All,

I'm trying to create a volume group using the vgcreate command.
I get an error message saying 'the device is busy'

I did fuser which didn't return any processes, etc.

How do I determine what is attached to this device?? I've tried lssf, ioscan, but no additional info that is useful.

The server is hp 9000/800/N4000-55, OS 11.00.

#vgcreate /dev/vg03 /dev/dsk/c3t0d2
vgcreate: Couldn't open physical volume "/dev/dsk/c3t0d2":
Device busy

# fuser -u /dev/dsk/c3t0d2
/dev/dsk/c3t0d2:

I'm a novice using LVM commands so any help would be greatly appreciated.

Re: fuser ...?

Frederic Sevestre — Thu, 30 May 2002 06:46:27 GMT

Hi,

Did you check if your device is not use in an other vg ?
# strings /etc/lvmtab | grep /dev/dsk/c3t0d2

Before adding the pv, you have to declare it using pvcreate :
# pvcreate /dev/rdsk/c3t0d2

Fr??d??ric

Re: fuser ...?

Stefan Farrelly — Thu, 30 May 2002 06:49:05 GMT

You need to use pvcreate first;

pvcreate /dev/rdsk/c.....

If this doesnt work add the -f option

pvcreate -f /dev/rdsk/c....

Then you can add into your VG.

Re: fuser ...?

Frederic Sevestre — Thu, 30 May 2002 06:52:17 GMT

Have a look there :

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x5dbbd08cc06fd511abcd0090277a778c,00.html

This problem looks like yours.

Re: fuser ...?

Michael Tully — Thu, 30 May 2002 08:04:44 GMT

Hi,

This sounds like the disk was part
of another group and could have been
exported without the volume group
being deactivated first.

As Stefan has suggested you will need
to use the force option. Have a look
at the man page for further explanation.

# /usr/sbin/pvcreate -f /dev/rdsk/cxtydx
(substitute you disk)

When you go to create your volume I suggest
you create the volume with the capacity
to add more than the standard number of
disks. You never know when you may need to
dramtically add disks to a group.

# vgcreate -p 255 /dev/yourvg /dev/dsk/cxtydz

HTH
~Michael~