increase /stand on JFS 2

[Tony Escujuri]

I working on some old machines running 11.0..

# bdf /stand
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol1 47829 28502 14544 66% /stand

I have been told that there is no way to increase /stand without rebuilding the OS. Is this correct?

To build new kernel we move vmunix.prev out out and this works. But the kernels (vmunix) are getting larger. Any help would be much appriectiated.

Thanks in Advance,
Tony Escujuri

[IT Response]

Ignite is a good tool for this issue.

[Paula J Frazer-Campbell]

Tony
A normal system will have a vmunix and vmunix.prev in the stand directory, When you rebuild a kernel by default the existing kernel is copied to vmunix.prev and the new kernal vmunix is created.

There is no need to remove the vmunix.prev file prior to a kernal rebuild.

To increase the size of stand the server should be rebooted to single user mode and an lvextend done on the lvol.

Paula

[S.K. Chan · Accepted solution]

Attached is the process using Ignite/UX, replace the appropriate parameter to suit your changes.

[Patrick Wallek]

You are correct. There is no way to increase the size of /stand without rebuilding the OS.

As said, Ignite/UX is a good tool to do this.

If you don't have Ignite download it from:
http://software.hp.com/products/IUX

Once you have downloaded it and installed it, create a make_tape_recovery tape:

/opt/ignite/bin/make_tape_recovery -a /dev/rmt/0mn -I -v -x inc_entire=vg00

You should probably create two tapes, just in case one of them happens to be bad.

Once that is done, you can boot from the tape you created above and it will come up with an interactive menu that will allow you to adjust the sizes of your logical volumes in VG00. At this point you can size all of them, including /stand, to the sizes you want.

[Sanjay_6]

hi Tony,

you cannot increase the size of /stand without reloading the OS. The reason is "because they must be contigious"

however 66% utilization of stand on your system looks okay.

Here are a few threads for more info,

http://us-support.external.hp.com/cki/bin/doc.pl/sid=2e10c3ad0f96566066/screen=ckiDisplayDocument?docId=200000050156847

http://us-support.external.hp.com/cki/bin/doc.pl/sid=2e10c3ad0f96566066/screen=ckiDisplayDocument?docId=200000048391480

http://us-support.external.hp.com/cki/bin/doc.pl/sid=2e10c3ad0f96566066/screen=ckiDisplayDocument?docId=200000051923658

Hope this helps.

Regds

[Marco Paganini]

Hello Tony,

The /stand filesystem is normally in strict/contiguous mode. I never tried to increase /stand, but I'd say it *would* be possible with a lot of LV juggling (like moving LVMs around to make contiguous space). That would involve copying data and doing a lot of work.

The question is: Do you *really* need to increase /stand now? It should take a few releases until the kernel grows up to fill up your remaining space.

Regards,
Paga

[Roger Baptiste]

hi,

ignite is the only way to do this. you would need to take a make_recovery tape and then reinstall the system with the tape in the interactive mode . Change the size of stand at that point.

Pls note that JFS has not say in this, since stand is a HFS filesystem.

-raj

[James R. Ferguson]

Hi Tony:

Certainly one solution is to create an Ignite recovery tape and reinstall from it, choosing the advanced system options to resize your logical volumes.

# make_tape_recovery -x inc_entire=vg00 -I -v -a /dev/rmt/0mn

Another method, if you have a spare disk, is outlined in document #LVMKBRC00007285 (attached).

[James R. Ferguson]

Hi Tony [this with attachment!]:

Certainly one solution is to create an Ignite recovery tape and reinstall from it, choosing the advanced system options to resize your logical volumes.

# make_tape_recovery -x inc_entire=vg00 -I -v -a /dev/rmt/0mn

Another method, if you have a spare disk, is outlined in document #LVMKBRC00007285 (attached).

Regards!

...JRF...

[harry d brown jr]

Tony,

Also, why not install the latest patches while you are at it, make it worth the downtime?

live free or die
harry

[Marcin Wicinski]

Hi,

Thats correct - thers no way to increase /stand, but I think 66% of usage is not a critical situation and theres really no need to increase /stand.

Later,