topic Re: Extend File System in Operating System - HP-UX

Extend File System

Sylvie Vezina — Thu, 05 Dec 2002 03:01:03 GMT

I increased one Volume Group and one Logical Volume. Now I have to extend File System related to these VG and LV. This File System is under Service Guard (DLVM). What is command to extend this File System without using Sam.

Thanks.

Re: Extend File System

Kellogg Unix Team — Thu, 05 Dec 2002 03:17:32 GMT

If you have On-Line JFS installed, use fsadm. That will allow you to increase the FS w/o unmounting it. Else, unmount the filesystem, and use extendfs command & remount the FS.

...Manjeet

Re: Extend File System

Sylvie Vezina — Thu, 05 Dec 2002 04:13:48 GMT

Could you give me the exact command to perform fsadm command.

Thanks

Re: Extend File System

T G Manikandan — Thu, 05 Dec 2002 04:26:02 GMT

check this doc

http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000062967363

Re: Extend File System

Kellogg Unix Team — Thu, 05 Dec 2002 05:21:39 GMT

Assuming its vxfs FS, the syntax would be -

fsadm -F vxfs -b

do "man fsadm" for more details/options.

...Manjeet

Re: Extend File System

Wodisch — Thu, 05 Dec 2002 10:33:01 GMT

Hi Sylvie,

be careful as you need at least a little free space on a filesystem before you can successfully extend it! One MB seems to be fine...
So your commands would look like (/dev/vg01/lvol2 mounted on /mnt2 to be increased to 2GB):

lvextend -L 2048 /dev/vg01/lvol2
fsadm -F vxfs -b 2048M /mnt2

HTH,
Wodisch

Re: Extend File System

Robert Thorneycroft — Thu, 05 Dec 2002 10:52:39 GMT

Before doing any of the above commands you should first check which type of filesystem you actually have mounted on your logical volume, it might not be a good idea to just assume that it is vxfs.

In order to do this you should issue the command:
mkfs -m /dev/vg{xx}/lvol{y}
For instance:
mkfs -m /dev/vg00/lvol1
mkfs -F hfs -L /dev/vg00/lvol1 69632 22 7 8192 1024 16 10 60 6228
This indicates that the logical volume, in this case /stand was created as hfs.

mkfs -m /dev/vg00/lvol3
mkfs -F vxfs -o ninode=unlimited,bsize=1024,version=3,inosize=256,logsize=1024,nolargefiles /dev/vg00/lvol3 86016
Whereas the root logical volume shown above is created with vxfs.

Therefore depending on the results of this command you should substitute the correct term into the -F option of either fsadm or extendfs, depepending as mentioned by other posters as to whether you are performing the operation online or not.

Hope this helps a bit,

Robert Thorneycroft