topic Re: Extending File Systems in Operating System - HP-UX

Extending File Systems

Andre Franklin — Fri, 30 Apr 2010 14:04:39 GMT

I have extended my logical volumes on vg00 and would like to extend my critical file systems. I do not currently have OnlineJFS so do not have a way to change (Ex. /opt) without un-mounting the files system. How do I unmount /opt so I can extend the file system?

Re: Extending File Systems

Burak Topal — Fri, 30 Apr 2010 14:15:56 GMT

First kill all processes related to /opt filesystem;

fuser -k /opt

unmount filesystem;

umount /opt

lvextend -L /dev/vg00/lvol*
extendfs -F vxfs /dev/vg00/rlvol*

Re: Extending File Systems

Andre Franklin — Fri, 30 Apr 2010 14:30:11 GMT

Will the following command:

extendfs -F vxfs /dev/vg00/rlvol*

fill the logical volume?

Re: Extending File Systems

singh sanjeev — Fri, 30 Apr 2010 14:38:03 GMT

!!!i think u have to boot ur system in single user mode then doing ...extnedfs.

Re: Extending File Systems

Andre Franklin — Fri, 30 Apr 2010 14:44:36 GMT

When I perform

fuser -k /home

I get this:

/home:

But the file system is still mounted.

Re: Extending File Systems

Pete Randall — Fri, 30 Apr 2010 14:46:04 GMT

It's not that you have to be in single user mode, it's just that it is pretty much impossible to unmount /opt without going to single user mode.

Your question: will extendfs "fill the logical volume?". If I understand what you are asking, yes, it will make all the space allocated to that logical volume available in the file system (/opt in this case).

Pete

Re: Extending File Systems

AnthonySN — Fri, 30 Apr 2010 14:57:25 GMT

you have to boot into single user mode to unmount /opt or /home.

fuser -k /home
will not umount /home
you have to do
umount /home
and then as mentioned above
lvextend -L /dev/vg00/lvolname
extendfs -F vxfs /dev/vg00/rlvolname

check the lvol name by doing bdf

Re: Extending File Systems

Andre Franklin — Fri, 30 Apr 2010 16:04:50 GMT

When I perform the umount command I get:
umount cannot unmount /dev/vg00/lovl* : Device busy
umount: return error 1

Re: Extending File Systems

Pete Randall — Fri, 30 Apr 2010 16:15:08 GMT

Which is why it was suggested that you will have to boot into single user mode. The /opt file system is always busy and the only way to get it unbusy and unmounted is to never mount it in the first place: single user mode.

Pete

Re: Extending File Systems

Andre Franklin — Fri, 30 Apr 2010 16:23:32 GMT

I am in single user mode as well.

Re: Extending File Systems

Pete Randall — Fri, 30 Apr 2010 16:34:30 GMT

How did you get to single user mode? Did you boot into it or did you just do "init -s"? It sounds to me like you did "init -s" and everything is therefore still mounted. Type in the "mount" command to check and see what is mounted.

Pete

Re: Extending File Systems

Andre Franklin — Fri, 30 Apr 2010 16:50:08 GMT

I got into single user mode by typing shutdown -y 0

File Systems still mounted:
/
/home
/opt
/usr
/var

Re: Extending File Systems

Andre Franklin — Fri, 30 Apr 2010 17:24:00 GMT

I have gotten /home to unmount. No I am having an issue with the extendfs command I am getting the following message.

vxfs extendfs: V-3-20142: /dev/vg00/home cannot stat

Re: Extending File Systems

R.O. — Fri, 30 Apr 2010 17:32:16 GMT

Hi,

Try:

# extendfs /dev/vg00/rlvolX (where X is the lvol mounted at /home)

Regards,

Re: Extending File Systems

Andre Franklin — Fri, 30 Apr 2010 17:33:22 GMT

That worked!!! Thanks

Re: Extending File Systems

Andre Franklin — Fri, 30 Apr 2010 18:29:14 GMT

Thank you to everyone that participated.