topic Re: Remove Logical Volume in Operating System - HP-UX

Remove Logical Volume

grechos — Thu, 08 Mar 2007 09:18:03 GMT

Hi Everybody
I would like to remove an logical Volume,but during this action sam told me that it is unpossible to remove this Volume because the Volume is busy

I cannot detect any process which are using the volume which i wanted to remove

Has anybody of an Idea want happend

Kindest regards

Grechos

Re: Remove Logical Volume

Robert-Jan Goossens — Thu, 08 Mar 2007 09:20:41 GMT

Hi Grechos,

Try it from the command line.

# umount /filesystem

# lvremove /dev/vgxx/lvoly

and remove the line from the /etc/fstab.

Robert-Jan

Re: Remove Logical Volume

Court Campbell — Thu, 08 Mar 2007 09:21:30 GMT

type bdf and make sure that the volume is not mounted. then type swapinfo and make sure the volume isn't being used for swap.

Re: Remove Logical Volume

Fabian Briseño — Thu, 08 Mar 2007 09:21:48 GMT

Hello. Grechos

make sure you are not or anybody else is not on that lvol

for example
hostname:/etc>

Re: Remove Logical Volume

DCE — Thu, 08 Mar 2007 09:21:54 GMT

fuser will tell you who/what is using the lvol (man fuser)

Re: Remove Logical Volume

Ralph Grothe — Thu, 08 Mar 2007 09:28:40 GMT

# lvremove -f /dev/vgXX/lvolXX

should remove the volume (with data loss) without much ado.
So be sure you don't need the data on the volume anymore or have a working backup.
Also note that a volume doesn't necessarily need to have a mounted filesystem to be active.
Just think about swap devices or raw devices that databases write to.
So be extra cautious with those.

Re: Remove Logical Volume

Chandan Kumar_1 — Thu, 08 Mar 2007 09:29:19 GMT

Hi,

Check this...

http://docs.hp.com/en/B2355-60130/lvremove.1M.html

Re: Remove Logical Volume

grechos — Thu, 08 Mar 2007 09:46:26 GMT

Helo again
well if i type
root@xxxxx/usr/sbin > ./fuser -cu /backup
OUTPUT:
/backup: 5730o(root) 18776c(root)
what can i do with this information

Re: Remove Logical Volume

Court Campbell — Thu, 08 Mar 2007 09:49:42 GMT

Helo again
well if i type
root@xxxxx/usr/sbin > ./fuser -cu /backup
OUTPUT:
/backup: 5730o(root) 18776c(root)
what can i do with this information

ps -ef | grep 5730
ps -ef | grep 18776

this will give you more info on the processes. If they aren't anything crucial you can kill the processes. Or use fuser -ku. Just be careful.

Re: Remove Logical Volume

grechos — Thu, 08 Mar 2007 09:57:20 GMT

hi people
i dint solve the Problem because i have to aducated some users they have to end the session on clear
:-)
And i inform you over the Problem i think on Friday but if any of you knows more informations then fell free and write it down

HAppy day

Re: Remove Logical Volume

DCE — Thu, 08 Mar 2007 09:58:31 GMT

When you are issuing the commands, are you in the directory? Just by being in it, the directory by definition is busy

Re: Remove Logical Volume

Court Campbell — Thu, 08 Mar 2007 10:04:39 GMT

well unless your users usually su to root or logon as root, it is more than likely that you are running the process and or in the directory as already mentioned.