About extend logical volume

[raymond lei]

I currently have to extend the logical volumes for /usr on two D-class with 10.20 because they are getting full and I am going to install new system application. One is HFS file system and the other is Vxfs. I tried to extend them on run-level 1, the system always says the device is busy enven after I used "fuser -ku /dev/vg00/lvolxx" to kill all of the processes on that device. I am not surprise about that it doesn't work on HFS, but why can't I do it on Vxfs whith OnlineJFS, it is supposed to get this kind of stuff done online?

Is there a way to extend the logical volume for /usr or other system directory no matter it is HFS or Vxfs?

Really appreciat any respons.

[Karthikeyan Veluchamy · Accepted solution]

Raymond,
I have extended /usr in the following manner..
1.Boot in single user mode hpux -is or go to single user mode and unmount /usr.
2.extends -F vxfs /dev/vg00lrlvolx
3.mount it again.

IF u require a step by step instruction.search for document id:KNC091997001

[Shyam Kishore]

Hi,

1. Your /usr filesystem size will not grow much as it is a static directory even if your load any of the packages.

2. when you specify lvextend at prompt by default it may run from /usr/sbin directory, which is a part or your logical volume. If you confirm no process is runing from that /usr, use /sbin/lvextend to extend your filesystem size.

All the best.

-Shyam

[Venu_2]

Hi,

Boot the system in single user mode to do this

1. Break the autoboot process
2. Interact with isl

ISL> hpux -is

# lvextend -L total_capacity_of_LV /dev/vg00/lvol??
# extendfs -F hfs/vxfs /dev/vg00/rlvol??
# mount /dev/vg00/lvol?? /mount_point


regards

venu

[Rick Garland]

Boot into single user mode.
Doing the "init 1" does not put you into true single user mode.

If you are multiuser mode, do the init 1. Then do bdf.
You will see that the FS are still mounted. Cannot do the extendfs on mounted FS.

[raymond lei]

It works, thanks very much. Now I know the problem is that the "init 1" and "init s" can not bring system to real single user mode.