/usr size extension question

[Edgar_10]

Hi,

I need to extend /usr,can this be done dynamically or do I have to take server to single user mode?

1.lvextend
2.umount /usr
3.extendfs
4.mount /usr

Thanks,

[Leif Halvarsson_2]

Hi,
It depends on is you have OnlineJFS installed (it is licensed). If not, you have to extend /usr in singlr user mode.

[Robert-Jan Goossens]

Hi edgar,

Follow next link for a detailed answer,

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x88525c7609e9d61190050090279cd0f9,00.html

Hope it helps,

Robert-Jan.

[RAC_1]

If you have OnlineJFS, it is easy.

Or else, boot into single user mode. hpux -is
init 1 wont do.

lvextend, extendfs.

[Edgar_10]

Hi Jan,

Thanks for the reference.The server has JFS installed(swlist |grep JFS), so can I just extend lvol & then use fsadm to extend filesystem?

Thanks

[Pete Randall]

Edgar,

Yes:

lvextend -L (n) /dev/vgXX/lvolXX

fsadm -F vxfs -b (n) mountpoint

See man fsadm



Pete

[Kent Ostby]

Edgar -- The second part of the answer to your question is that it depends.

Not only do you have to have Online JFS installed, but /usr has to be a JFS filesystem.

grep "usr" /etc/fstab

If it has "hfs" then you have to do the reboot.

If it has "vxfs" then you can use Online JFS.

Best regards,

Kent M. Ostby

[Leif Halvarsson_2]

Hi,

Don't confuse with the basic JFS included in the HPUXbase64 bundle with OnlineJFS which is a separate product called:
B5118CA B.11.11 HP OnLineJFS

You need this product to extend the filesystem online.

[Edgar_10]

Hi all,

Thanks for the feedback! Yes the /usr filesystem is vxfs, so I will go ahead and attempt the extension!

Thanks again!

[Steven E. Protter]

Even without Online JFS you can do this.

1. lvextend
2. fuser -cuk /usr (Users maybe affected)
3. umount /usr
4. extendfs
5. mount /usr

good luck,

SEP