How to reduce the temp directory

[M.sureshkumar]

Hi All,
We have 2GB /tmp directory.I need 1 gb space from temp directory.How to reduce the temp dirctory.
Pls give the procedure to reduce the temp directory.

Regards,
Suresh,

[Peter Godron]

Suresh,
if you just want to clear some space delete some files. The command
"du -sk * | sort -krn" should help you identify what to delete.

If you want to shrink the /tmp lvol to free up space in the vg bring the machine to single user mode and do a lvreduce. This will destroy data!
Regards

[Sunil Sharma_1]

suresh,

1. reboot the machiine
2. stop at ISl and go to single user mode
ISL>hpus -is

make sure /tmp is not mounted.
bdf /tmp

#lvreduce -L 1000 /dev/vg00/lvol6 (in standard hpux installation /tmp is lvol6 but double check before running this command)

#newfs -F vxfs /dev/vg00/lvol6

#shutdown -r now

Sunil

[MarkSyder]

You've been given good answers for reducing the size of the logical volume, so I'll concentrate on clearing out files (if that is what you want).

As this is a tmp directory, I'll assume no one is putting anything in there they want to keep. In this case, you can run:

find /tmp -mtime +7 -exec rm {} \;

which will delete files over a week old.

It's a good idea to have this running as a cron job.

Mark Syder (like the drink but spelt different)

[Nguyen Anh Tien]

If your /tmp directory contain temporary data, not importance you can reduce it by thus procedure:
Determine which lv mount to /tmp
[server1:/imap] bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 204800 174928 29672 85% /
/dev/vg00/lvol1 298928 74240 194792 28% /stand
/dev/vg00/lvol8 4710400 1945920 2743008 42% /var
/dev/vg00/lvol7 1245184 1170904 74280 94% /usr
/dev/vg00/lvol4 204800 153712 50960 75% /tmp
/dev/vg01/lvprd 3223552 2403015 769302 76% /prd
#lvextend -L 1024M /dev/vg00/lvol4
========note===========
lvol4 mount to /tmp
=======================
#fsadm -F vxfs -b 1024M /tmp
that all.
tienna

[Nguyen Anh Tien]

Sorry Sure. I misorder.
It must be (I just test on my system)
[server1:/tmp] fsadm -F vxfs -b 150M /tmp
vxfs fsadm: /dev/vg00/rlvol4 is currently 204800 sectors - size will be reduced
[server1:/tmp] lvreduce -L 150M /dev/vg00/lvol4
Warning: rounding up logical volume size to extent boundary at size "152" MB.
When a logical volume is reduced useful data might get lost;
do you really want the command to proceed (y/n) : y
Logical volume "/dev/vg00/lvol4" has been successfully reduced.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf


Sorry for misorder.
tienna

[M.sureshkumar]

Hi All,

I need to reduce temp directory as well as i use that space to create new logical volume.Pls give me procedure.

Regards,
Suresh.

[Robert-Jan Goossens]

Hi,
--sunil's answer--
make sure /tmp is not mounted.
bdf /tmp

#lvreduce -L 1000 /dev/vg00/lvol6 (in standard hpux installation /tmp is lvol6 but double check before running this command)

#newfs -F vxfs /dev/vg00/lvol6

#shutdown -r now
---
After the shutdown create a new logical volume.
# bdf
/dev/vg00/lvol3 255253 148390 81337 65% /
/dev/vg00/lvol1 95701 35337 50793 41% /stand
/dev/vg00/lvol7 648643 448888 134890 77% /var
/dev/vg00/lvol6 700691 486743 143878 77% /usr
/dev/vg00/lvol5 255253 1770 227957 1% /tmp
/dev/vg00/lvol4 1001051 515983 384962 57% /opt

on my system the new logical volume would be 8

# lvcreate -L 1000 -n lvol8 /dev/vg00
# newfs -F vxfs /dev/vg00/rlvol8

Regards,
Robert-Jan

[Robert-Jan Goossens]

add on,

create a new mountpoint
# mkdir /new_mount_point
add the new logical volume to the /etc/fstab
/dev/vg00/lvol8 /new_mount_point vxfs 0 2
# mount -a

[M.sureshkumar]

hi Goossens,

I can't umount the temp directory.
I got the following error.
umount:can not umount temp dirctory :device busy
Umount:return error=1
I used umount commant in root login and i opend only one telnet session.

Regards,
Suresh.

[Thierry Poels_1]

hi,

/tmp is nearly always in used.
That's why shutdown to single user was advised to perform this operation.

regards,
Thierry

[Robert-Jan Goossens]

Two options,

# shutdown -h -y now

boot into single user mode.

or you can try to kill the processes using /tmp

# fuser -k /tmp

# umount /tmp

Regards,
Robert-Jan

[Sunil Sharma_1]

Suresh,

alternatively if you have some free space in vg00 you can create one new 1Gb file system and then change fstab to moutn this new fs to /tmp and then reboot.

After boot up /tmp wll be 1 gb and now you can remove or reduce old /tmp filesystem

Sunil

[bhavin asokan]

hi suresh,

your profile shows that you have assigned points only for 17 responses out of 150.

http://forums1.itrc.hp.com/service/forums/publicProfile.do?userId=CA999444&forumId=1

if you are assigning points then only the other members come to know their solutions were valuable and how much it helped to solve your problems.

see the link

http://forums1.itrc.hp.com/service/forums/helptips.do?#28

regds,