topic Re: file system increase in Operating System - HP-UX

file system increase

navin — Wed, 15 Oct 2008 14:35:00 GMT

Hello,
I have to increase the filesystem /volme size.how do i check if i can do that online.
It is set up lvm/vxfs
i dont think it has onlinejfs.
pls advice
thanks

Re: file system increase

Ganesan R — Wed, 15 Oct 2008 14:38:46 GMT

Hi,

If you have not online JFS then you cannot extend it online.

check if you have online jfs installed or not by using swlist

#swlist -l product |grep -i online

if you don't have, you need to unmount and extend the filesytem using lvextend and extendfs commands

Re: file system increase

Gokul Chandola — Wed, 15 Oct 2008 14:51:41 GMT

Hi,
plz provide os version.

Regards,
Gokul Chandola

Re: file system increase

Adam W. — Wed, 15 Oct 2008 14:51:49 GMT

I use this for LVOL extensions if NO ONline JFS is avalable:
A. umount /dev/vgxx/lvolx
(unmounts filesystem)
B. lvextend â L /dev/vgxx/lvolx
C. extendfs â F vxfs/hfs(/etc/fstab) â o largefiles
D. mount â a
AND this if ONLINE JFS IS available:

A. lvextend â L 4000 /dev/vgxx/lvolx
(increases the size of the lvol reads in megs by default)
Note: the â L option is not used to specify the amount of space you want to â growâ the lvol by. It is used to specify TOTAL space needed after the lvextend.
B. fsadm â F vxfs â b 39000M /filesystem
Note: fsadm command reads by Kbytes by default, Megs must be specified by the M after amount

Re: file system increase

Adam W. — Wed, 15 Oct 2008 14:53:02 GMT

Navin here is a little cheat sheet I use for my HP-UX 11.11 boxes.

Re: file system increase

OldSchool — Wed, 15 Oct 2008 15:00:02 GMT

WHICH volume / filesystem?

some of the stuff in vg00 requires contiguous allocations an is easier to handle with ignite.....

Re: file system increase

Pete Randall — Wed, 15 Oct 2008 15:25:23 GMT

First off, what file system is this? There is a "/" in your question that makes me wonder if you're talking about the root file system or you are talking about increasing both the logical volume and the file system it contains. If that is the case, look at the EXAMPLES section of the lvextend man page for guidance.

Pete

Re: file system increase

navin — Wed, 15 Oct 2008 15:36:01 GMT

it's file system opt.it's in vg00
OS version is 11.23
thanks

Re: file system increase

James R. Ferguson — Wed, 15 Oct 2008 15:48:26 GMT

Hi Navin:

> it's file system opt.it's in vg00

OK, so what. If you have OnlineJFS you don't need to unmount the filesystem to enlarge it. In this case, you use 'fsadm' after growing the logical volume with 'lvextend'.

If you don't have OnlineJFS then you can't use 'fsadm' and must first unmount the filesytem to enlarge it with 'extendfs' (after doing an 'lvextend').

It will be easiest if you boot *into* single-user mode where '/opt' isn't mounted. Then, use the commands in '/sbin'. When you are done, it is easiest to reboot again to resume normal operations.

For your reading pleasure see:

http://docs.hp.com/en/B2355-90950/index.html

Regards!

...JRF...

Re: file system increase

B V B Kumar — Thu, 16 Oct 2008 04:48:27 GMT

Hi,

First check whether you have OnlineJFS product installed in your system to increase filesystem online.

#swlist -l product | grep -i onlinejfs

Then you can use fsadm command to increase.

If this product is not installed, you cannot increase filesystem online.

regards

Re: file system increase

Suraj K Sankari — Thu, 16 Oct 2008 05:18:16 GMT

Hi,

First check onlineJFS is there or not with swlist command if onlineJFS is there then no need to unmount the FS.
as well as you have to check this things also

vgdisplay vg00
PE Size (Mbytes) ?
Free PE ?

if you have free pe then only you can extend your /opt

Suraj

Re: file system increase

Johnson Punniyalingam — Thu, 16 Oct 2008 06:11:31 GMT

Hi Navin,
>> Increase the filesystem /volume size.how do i check if i can do that online >>

which volume are you going to increase..?

does your file system or Logical reside under vg00.?

also you need check do you have enough free disk space.?

vgdisplay /dev/vgxx

*****Free Space = Free PE x PE Size (Mbytes)

(if you have Onlin JFS)

lvextend -L /dev/vg00/lvol2
fsadm -f vxfs -b M
bdf --> verfiy "you have Increased the file system"

Extending Logical Volumes (without online JFS)
umount /dev/vgxx/lvolx --> this you need to check if your Logical volume reside under "vg00" also belongs to Operating File system (eg /var/ /opt/ /usr)
(note you can't unmount the file system) you need go HPUX Singel User mode)

shutdown -ry 0
Hit anykey to interupt the boot process

main Menu > bo pri
Interact with IPL (Y or N)?> y
Booting...
Hard booted

ISL> hpux -lm --> booting server in lvm maintance Mode

# mount -a

umount /var
lvextend -L /dev/vg00/lvolx
extendfs -F vxfs /dev/vg00/lvolx
mount /dev/vg00/lvolx /var

(Note if you Logical volume does not reside under vg00 or doesn't belong to Operating File system pls ignore the above steps)

fuser -c
umount /data --> example
lvextend -L /dev/vg01/lvolx
extendfs -F vxfs /dev/vg00/lvolx
mount /dev/vg01/lvolx /data
mount -a

Hope this helps you ,

Thanks,
Johnson

Re: file system increase

SKR_1 — Thu, 16 Oct 2008 07:33:53 GMT

Go ahead with Johnson reply.

Thanks

SKR