Extending /usr

[Mutum]

I have been runing out of space on my /usr file system.

I managed to extend the volume group vg00, and also extended the logical volume on which /usr in mounted, but when I try to extend the file system /usr, it can't be extend since it's mounted, and I can't umount it.

Can some one advice me how to perform this.

Thanks

[Camel_1 · Accepted solution]

do you have online JFS? If no you have to boot server into single user mode and extend the FS.

[Sudeesh]

Do you have Online JFS installed? If yes you can extend online by fsadm without much issues. Otherwise you need to kill all the process accessing /usr and umount or reboot the system to single user mode and do extendfs.

fuser -cu /usr -> to see all the pid accessing /usr.
fuser -ku /usr -> to kill all process on /usr(Warning! killing process is dangerious suggested option is to reboot in single user mode)

Let me know if u need further help

Sudeesh

[Steven E. Protter]

Boot the box

Interupt at the 10 second prompt

bo

Y Interact
hpux -is

This will boot into single usre mode.

/usr will not be mounted.

Now you can lvextend and then extendfs without any trouble. You can lvextend usually while the logical volume is mounted. You can't extendfs

SEP

[Senthil Kumar .A_1]

Hi Muatasim,

One less effort way extending the /usr filesystem, if you do not have "online JFS".

When the system is online , u can still "lvextend" but not "extendfs". So you can use this feature to your advantage.

When the system is online, perform....

lvextend -L /dev/vg00/lvolx

(find the /dev/vg00/lvolx by issue following command
bdf /usr )

Then add the following entry in /etc/inittab file just above "brcl" entry...

exfs::bootwait:/sbin/extendfs -F vxfs /dev/vg00/rlolx /dev/console 2>&1

Then reboot the system...
shutdown -ry 0

When the sytem is up .. check.. the size

bdf /usr
it will reflect the new size..

Now you can remove the entry u made in inittab file earlier.

regards..

[Mutum]

Thanks to all of you for the valuable information.

I have perform it in single user mode, after reboot.

[Mutum]

I have fixed in single user mode.