Online JFS

[Dan Walker]

We are running online JFS using Service Guard and need to grow a file system the type is DLVM can this be done while in production mode or must I go to single user mode. When I highlite it in SAM I don't get the option to increase size.

[RAC_1]

You do need to go into single user mode. Can be done online. lvextend -L "new_size_in_MB" /dev/vgxx/lvolx (Provided you have enough fee extends on PVs in that VG)

After you extend, do not forget to set the changes on other (SG_ node.)

Anil

[Steven E. Protter]

absolutely can do this hot online.

You need to see if there is enough disk space.

If so:

lvextend the logical volume

fsadm -F vsfs /filesystem_name

i remember a -b before size, but I'm not at work and don't have my notes.'

SEP

[Fred Ruffet]

Online JFS is there for you not to have to unmount for such operation.

use
lvextend -L new_size_in_MB yourlv
fsadm -b new_sizeinKB mountpoint

regards,

Fred