how to extend root volume

[bill_allen]

I am needing to increase the size of my root partition lvol3. I can see from vgdisplay that I have plenty of free physical extents free to use. While in LVM maintenance mode, when I run lvextend -L 400 /dev/vg00/lvol3 it tells me that the operation failed not enough free extends and that the failure was possibly due to strict allocation policy and contiguous allocation policy. lvdisplay does reveal the allocation policy for the volume is set for strict/contiguous. How do I alter the allocation policy in order to do what I need? How do I extend this volume?

[Torsten. · Accepted solution]

Don't change the allocation policy!

Why do you need more space?

Normally you don't.

The best procedure is (if really needed) to take an ignite backup and adjust the values while restoring.

[bill_allen]

I am upgrading from 11iv1 to 11iv2 and it is fussing at me about not having enough space on the root volume. I did an ignite tape just prior to starting this, so I will go that way. Is there anything I need to look out for in going that route?

[Torsten.]

Make sure all of your equipment is supported by 11.23 (e.g. HVD SCSI is no longer supported)!

[bill_allen]

My system is an L2000 (rp5450) . Do you know if that is supported?

[Torsten.]

The server is supported

http://docs.hp.com/en/5992-1978/ch02s03.html

but check peripherals and HBAs.

[bill_allen]

The ignite revovery, etc. went fine. I am trying now to get the vg00 mirrored again. vg01 disks mirrored up fine. when I run lvextend with the -m option, it says that option is not valid. I am trying to extend the mirror like:
lvextend -m 1 /dev/vg00/lvol1 /dev/dsk/c2t2d0

Any ideas where I might be going wrong? I have already done the pvcreate, vgextend and mkboot commands for the mirror disk without problem.

[Oviwan]

hey

you have to install Mirrordisk/UX for the -m option. check "man lvextend" there you can find that hint.

Regards

[Steven E. Protter]

Shalom,

Part of the Ignite install interface is an option to enlarge filesystems.

You may need to make_tape_recovery and then restore the tape and then upgrade.

The upgrade process kind of bites though, so you might want to go cold installation then application re-install.

SEP

[bill_allen]

Thanks to all that responded. You have been a big help.


Many Thanks,
wda

[bill_allen]

Many Thanks! :-D

[Ivan Krastev]

You can extend the root file system without any Ignite recovery. Only MirrorDisk/UX and OnlineJFS are needed.

regards,
ivan

[SPMK]

I did this with online JFS, may be useful for you!

Expanding / (ROOT) filesystem:-
# pvmove /dev/disk/disk2_p2:00640-00767 /dev/disk/disk2_p2:03392
Transferring logical extents of logical volume "/dev/vg00/lvol4"...
Transferring logical extents of logical volume "/dev/vg00/lvol5"...
Physical volume "/dev/disk/disk2_p2" has been successfully moved.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
#
# lvextend -L 2048 /dev/vg00/lvol3
Logical volume "/dev/vg00/lvol3" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
# fsadm -F vxfs -b 2097152 /
UX:vxfs fsadm: INFO: V-3-25942: /dev/vg00/rlvol3 size increased from 1048576 sectors to 2097152 sectors
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