topic Re: /usr size extension question in Operating System - HP-UX

/usr size extension question

Edgar_10 — Mon, 08 Sep 2003 07:53:21 GMT

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,

Re: /usr size extension question

Leif Halvarsson_2 — Mon, 08 Sep 2003 08:00:26 GMT

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

Re: /usr size extension question

Robert-Jan Goossens — Mon, 08 Sep 2003 08:01:05 GMT

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.

Re: /usr size extension question

RAC_1 — Mon, 08 Sep 2003 08:22:25 GMT

If you have OnlineJFS, it is easy.

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

lvextend, extendfs.

Re: /usr size extension question

Edgar_10 — Mon, 08 Sep 2003 08:30:11 GMT

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

Re: /usr size extension question

Pete Randall — Mon, 08 Sep 2003 09:34:35 GMT

Edgar,

Yes:

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

fsadm -F vxfs -b (n) mountpoint

See man fsadm

Pete

Re: /usr size extension question

Kent Ostby — Mon, 08 Sep 2003 10:40:01 GMT

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

Re: /usr size extension question

Leif Halvarsson_2 — Mon, 08 Sep 2003 10:52:42 GMT

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.

Re: /usr size extension question

Edgar_10 — Mon, 08 Sep 2003 10:52:58 GMT

Hi all,

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

Thanks again!

Re: /usr size extension question

Steven E. Protter — Mon, 08 Sep 2003 11:02:54 GMT

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

Re: /usr size extension question

Edgar_10 — Mon, 08 Sep 2003 12:17:22 GMT

Hi,

The JFS product installed is:
B3929BA B.11.00 HP OnLineJFS (Advanced VxFS).Is this the correct one?

Thanks

Re: /usr size extension question

Pete Randall — Mon, 08 Sep 2003 12:20:11 GMT

Assuming you're running HP-UX 11.0, yes, that's the correct one.

Pete