How to increase space

[Ernesto Barrera]

My System is an HP-UX 11 D-230 and "/" File System is 100% full. What can I do to increase its capacity?
I have enought space left (not asigned) on disk.

[melvyn burnard · Accepted solution]

before going through th epain of increasing the space, you may want to check what is taking up ytthe current space.
for example, hav eregular files been placed in /dev?
do du -s /dev
it should be fairly small number, if not then someone may have done something redirecting to what they THOUGHT was a device, but did a typo.
common ones are /dev/rmt/om instead of /dev/rmt/0m, or /dev/nul instead of /dev/null.
Also check for multiple vmunix* files in /standor /stand/build.

[Rainer_1]

increasing / is difficult.
First check what files/directories have grown up your fs:

du -kx / |sort -n

If you found some dirs you can create a new lvol and mount it to them.

[Victor BERRIDGE]

Hi,
In order to extend / you will have to use Ignite-Ux, do a make_recovery -A and use the freshly generated DAT to extend /, for that you will have to reboot from the DAT, press return to interrupt batch mode, now you can install again HP-UX with new params (change file system size).
As you can see Melvyn and Rainer are right check first why / is 100% full by following theyr advices and if you have no other alternative now you know what you are to do
You may have to download and install Ignite-Ux, its free , make a search on the forum...
Here are size of vg00 fs on one of my D230...
/dev/vg00/lvol3 86016 28618 53876 35% /
/dev/vg00/lvol1 67733 36654 24305 60% /stand
/dev/vg00/lvol8 716800 579032 129196 82% /var
/dev/vg00/lvol7 606208 451612 145000 76% /usr
/dev/vg00/lvol6 667648 588618 74690 89% /opt

Good luck

Victor

[Sandor Horvath_2]

Hi !

You can create the simbolic link to the another filesystem, and move some data there.

For increase the "/" filesystem the problem is it must be contiguous extents. May be you can increase it if boot your system from the another boot disk, and remove the used space after "/" , and increase it. First make a backup !

Please create link to another fylesystem.

Saa

[CHRIS_ANORUO]

It is very difficult to increase / filesystem, unless when using make_recovery tape to reconfigure the LV's.
Do find / -xdev -size +1,000,000c -exec ll {} \\; to find core dumps of files mistakenly copied to / root.

[Dan Hetzel]

Hi Ernesto,

Unless you have installed HP-UX with a really small / filesystem, you shouldn't need to increase its size because it's not suppposed to grow.

Make sure you have separate filesystems for
/tmp
/var
/usr
/opt

If /tmp is not on its own filesystem, clean all files older than 3 days with:
find /tmp -type f -mtime +3 -exec rm {} \;

Check if the / filesystem contains any large file that shouldn't be there (core dumps, a.out, *.tmp, *.log) with
find / -xdev -size +1000 -exec ll {} \;
will show you all files larger than 1000 blocks (512Kbytes)


Best regards,

Dan

[John Waller]

I have to agree with the re-install from a make_recovery tape and re-structure your vg00 logical volumes if you can't find any core files or mis-typed device files within your / file system. Another useful command to use to identify any large files is " find / -xdev -type f -exec ls -l {} \; " (find from root without crossing mount points , all regular files and list them.)
As a side note I am slightly annoyed that HP seem to use /etc as a config area for uucp, ppp, printers, resmon. Alright these should not be too big but if you do have a system with a lot of modems or printers then it may start to impact on your / filesystem.

[f. halili]

Have you tried deleting core files???

# find / -name "core" -type f -exec rm {} \;

Find big files ????

# find / -size +1000000c | pg