topic Re: LVM error in Operating System - HP-UX

LVM error

himacs — Mon, 21 Sep 2009 19:29:48 GMT

Hi Admins,

I have extended 64 MB LV to 100 MB.The same has been done with below error.

lvextend -L 100 /dev/vg00/lvname
Warning: rounding up logical volume size to extent boundary at size "112" MB.
Logical volume "/dev/vg00/lvname" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf

lvdisplay tells the LV has been extended with new value ie, 112 MB

But when i mounted ,it shows the same old value..not extendde one..

what will be the issue..

Regards
himacs

Re: LVM error

James R. Ferguson — Mon, 21 Sep 2009 19:34:38 GMT

Hi:

You can 'lvextend' the logical volume all day long, but until you expand/extend the _filesystem_ within you will not see your additional space when you mount the filesystem.

If you have OnlineJFS, you can 'fsadm' the filesystem online. Otherwise, unmount the filesystem and use 'extendfs'. See the manpages.

Regards!

...JRF...

Re: LVM error

Hakki Aydin Ucar — Mon, 21 Sep 2009 20:53:39 GMT

exactly what J R F says. I attached a real example , I extended /home directory/FS :

# lvextend -L 522 /dev/vg00/lvol4 /dev/dsk/c3t5d
Warning: rounding up logical volume size to extent boundary at size "528" MB.
Logical volume "/dev/vg00/lvol4" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.con
f
# umount /home
# extendfs /dev/vg00/rlvol4
# mount /home
# bdf /home

Re: LVM error

Suraj K Sankari — Tue, 22 Sep 2009 03:02:47 GMT

Hi,
After lvextend you need to apply these command extendfs or fsadm .

see the example in man page of lvextend

Suraj

Re: LVM error

Asif Sharif — Tue, 22 Sep 2009 03:08:00 GMT

Hi himacs,

This is a warning that lvm will extend the lvol to the next multiple you specified in relation to the PE size. The default size of PE is 4MB.

You can extend mounted VxFS file systems using the fsadm command if onlineJFS is installed.

http://docs.hp.com/en/5971-4772/apas07.html

Regards,
Asif Sharif

Re: LVM error

Md. Farhan A Azam — Tue, 22 Sep 2009 03:52:18 GMT

Hi,

You need to extened the file system.

#/sbin/extendfs -F vxfs /dev/vg00/r{lvname}

example -
#/sbin/extendfs -F vxfs /dev/vg00/rlvol8

Ensure the filesystem now reports to be the new size

# bdf

thnx...farhan

Re: LVM error

himacs — Thu, 24 Sep 2009 02:51:39 GMT

Hi Admins,

Thanx for ur support and sorry for this delayed reply.

Actually i missed that part-extendfs

The LV has been extended successfully.

m closing this thread.

regards
himacs

Re: LVM error

himacs — Thu, 24 Sep 2009 02:52:14 GMT

Closin the thread