topic Re: lvreduce /tmp in Operating System - HP-UX

lvreduce /tmp

M.sureshkumar — Sat, 12 Feb 2005 01:02:51 GMT

Hi All,

I need to reduce /tmp directory.
Pls give me the procedure for reduce the /tmp directory.I checked swllist, online jfs has already installed in this server.

Regards,
Suresh.

Re: lvreduce /tmp

Robert-Jan Goossens — Sat, 12 Feb 2005 03:33:46 GMT

Hi Suresh,

# fsadm -d -e -D -E /tmp
# fsadm -b "reduced size in KB" /tmp
# lvreduce -L "new size in MB" /dev/vg00/lvolx

Regards,
Robert-jan

Re: lvreduce /tmp

B. Hulst — Sat, 12 Feb 2005 08:10:55 GMT

Hi,

And clean up files from /tmp before you reduce it.

And try not to have much application activity going on in /tmp.

Regards,
Bob

Re: lvreduce /tmp

Bill Hassell — Sat, 12 Feb 2005 12:31:50 GMT

Very important: Online JFS (the fsadm command, not lvreduce) has a very poor record of success in reducing a filesystem without destroying all the data. Do not reduce the filesystem until you have a known good backup of the /tmp directory. With all the latest patches for VxFS and Online JF and converting the /tmp directory to the latest VxFS version should work OK.

Re: lvreduce /tmp

Hoang Chi Cong_1 — Sun, 13 Feb 2005 01:31:29 GMT

Hi man

Take a look with these threads, them may help you:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=794280

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=65326

Goodluck!
Regard,
HoangChiCong

Re: lvreduce /tmp

Paul_481 — Sun, 13 Feb 2005 01:44:38 GMT

Hi,

If you can afford downtime, instead of using lvreduce, i suggest you just remove the logical volume of /tmp and re-create it again with your desired size.

Regards,
Paul

Re: lvreduce /tmp

lawrenzo — Sun, 13 Feb 2005 09:25:38 GMT

I have reduced a filesystem recently and encountered a few issues,

when I managed to reduce the filesystem I corrupted the data!

I suggest either fbackup /tmp -f /

or

tar cvf .tar /tmp

then unmount /tmp, fully remove the lvol with lvremove

then recreate it, this will save time instead of messing around trying to reduce it and the data gets corrupt anyway.

HTH