Will there be any data loss while increasing a Filesys size...?

[Saravana kumar_4]

Hi All,

I need to increase the size of a existing file system (user created) in HPUX.

Will there be any data loss while unmounting during size change.....?

Plz Reply me ...

Thanks in advance...

[James R. Ferguson]

Hi:

There will be no data loss if you perform the resize correctly. You will not need to unount the filesystem if you have OnlineJFS.

Regards!

...JRF...

[Yogeeraj_1]

hi,

As mentioned by JRF, if you follow the steps right then there are no risks of data loss. As a precautionary measure, you may wish to backup your data before doing any manipulations.

good luck!

kind regards
yogeeraj

[Bill Hassell]

There are two steps to increasing the filesystem: physical space is added using lvextend, and the directory is reorganized to use the new space using fsadm -b. There will be no -b option if you do not have OnlineJFS product. Check with:

swlist -l product | grep -i OnlineJFS

Without OnlineJFS, you can extend the logical volume at any time but you must unmount the filesystem before running extendfs to reorganize the directory.

[Shrikant Lavhate]

Hi,

Already Olympics have answered your question so nothing to add more. Just wanna give you list of command you may ask afterwards, in advance!

Regular method:

#umount

#fuser -ku #To kill active user sessions.

#lvextend -L /dev/vg??/lvol?
size is increased size in MB

#extendfs -F vxfs /dev/vg??/rlvol?
Assuming FS is vxfs type.

#mount /dev/vg??/lvol?

Online JFS:
#swlist -l product| grep -i jfs

#fsadm -b /mount_point

As already mentioned having backup in hand before you play around in LVM is good practice.
-=ShRi=-

[Saravana kumar_4]

Hi All,

Thanks ... Thanks for all for giving good info.

I dont have online JFS ... of course

I followed ur steps and could resolve the problem.

Thanks again to all...