topic Re: /opt 98% full... in Operating System - HP-UX

/opt 98% full...

Adrian Sobers2 — Fri, 05 Nov 2004 12:48:58 GMT

/opt is very full. Attached is the output of my du command. I ran the trim system logfiles from SAM and still it is at 98%.

Does anyone have any ideas on how I can free up some space under /opt?

Re: /opt 98% full...

Zygmunt Krawczyk — Fri, 05 Nov 2004 12:51:43 GMT

Hi,
the only reasonable method to resolve this problem is to increase the size of /opt filesystem (or remove some not needed software)

Regards,
Zygmunt

Re: /opt 98% full...

Adrian Sobers2 — Fri, 05 Nov 2004 12:52:26 GMT

attached is the output from the bdf and vgdisplay commands...zipped as one attachemnt ;)

Re: /opt 98% full...

Sundar_7 — Fri, 05 Nov 2004 12:55:48 GMT

du -sk * /opt also will include other filesystems like /opt/oracle.

/opt/mx and /opt/ignite are the directories you want to look at for housekeeping.

/opt is supposedly a static filesystem (unless,ofcourse, if you dont install softwares everyday :-). You have enough Free PE in the volume group. I would suggest increasing the LV size. Do u have online JFS installed ?

Re: /opt 98% full...

Jean-Luc Oudart — Fri, 05 Nov 2004 12:59:33 GMT

There are some directory that I would question :
Plenty of oracle some being "old" . Are all these version of oracle in use ?

Also, "inventory" (oracle again) is used when you install the product(s). They copuld be moved elsewhere and you can keep a link otherwise the location of such installation directory is kept in /var/opt/oracle/oraInst.loc

Regards
Jean-Luc

Re: /opt 98% full...

Adrian Sobers2 — Fri, 05 Nov 2004 13:02:38 GMT

Sundar,

I don't think we have Online JFS, how would I check?

What is under /opt/mx? I know the /opt/ignite is the Ignite-UX tools that was installed last month.

Also is it possible to just remove things like netscape, mozilla, etc and other software under /opt that we do not use and need. It is a production database server, period.

I tried swremove for netscape, mozilla etc but it does not work. How do you get the exact "argument" for swremove for applications under HP-UX like Netscape, Mozilla etc?

Thanks for your help.

Re: /opt 98% full...

Victor BERRIDGE — Fri, 05 Nov 2004 13:02:59 GMT

Hi Adrian,
Do you have Online-JFS?
type:
swlist|grep JFS
or swlist -l product|grep JFS

While you check that I will have a look to your joined files

All the best
Victor

Re: /opt 98% full...

Adrian Sobers2 — Fri, 05 Nov 2004 13:06:39 GMT

Victor,

Here is the output from the commands:

root:INLAND8>swlist | grep JFS
root:INLAND8>swlist -l product | grep JFS
JFS B.11.11 The Base VxFS File System
PHKL_24026 1.0 JFS Filesystem swap corruption
PHKL_28512 1.0 Fix for POSIX_AIO in JFS3.3
PHKL_29115 1.0 JFS Direct I/O cumulative patch

Re: /opt 98% full...

Steven E. Protter — Fri, 05 Nov 2004 13:12:12 GMT

To original post:

trimming logs won't help with space on /opt

/opt is generally used for optinal software.

/var is for logs.

SEP

Re: /opt 98% full...

Adrian Sobers2 — Fri, 05 Nov 2004 13:13:16 GMT

Yes a lot of those Oracle directories on there are actually Oracle Installation CDs. The consultant that worked with us on the Oracle install put on the following installations (Oracle 8, Oracle 8i, Oracle 9i) onto our disk for ease of install and to avoid swapping CDs etc. Since we had the "space". I'm not sure we can afford to do that now the machine is in production. We only use Oracle 8i (8.1.7.4) in production. Come to think of it, I think there are also duplicates on there for difference versions like 8.0 patched and 8.0 base....hmph

Re: /opt 98% full...

Victor BERRIDGE — Fri, 05 Nov 2004 13:14:47 GMT

OK no Online-JFS installed...

That means you will have to stop oracle
all of it with the listener...
then
umount
/opt/oracle/data
/opt/oracle/archive_logs
/opt/oracle/app
then give a try with sam to extend /dev/vg00/lvol6 to 1.8 GB

Tell me if it works
What does bdf says now and what does du -sk * in /opt produce now?

All the best
Victor

Re: /opt 98% full...

Adrian Sobers2 — Fri, 05 Nov 2004 13:20:20 GMT

Well I will have to schedule that for after hours, working hours now...

Do I have to boot to ISL prompt or just stop Oracle and then do the business?

Re: /opt 98% full...

Victor BERRIDGE — Fri, 05 Nov 2004 13:24:07 GMT

No need to boot single user..
Just stop all that oracle and try to umount the file systems I mentionned
then you can try using sam if I remember right you did this once
or use command line:
umount /opt
lvextend -L 1800 /dev/vg00/lvol6
extendfs /dev/vg00/rlvol6

mount -a

#done!

Good luck
Victor

Re: /opt 98% full...

Victor BERRIDGE — Fri, 05 Nov 2004 13:29:26 GMT

I forgot
When oracle is stopped
and you umount /opt/oracle/data etc..
If they do not saying device busy then:
fuser -cku /opt/oracle/data etc...

How does oracle start anyway? at boot that is do you hace a start/stop script? in /sbin/rc3.d ?
if so type init 2 when you can...
and when finished
init 3 or 4 whatever you have as value for initdefault in /etc/inittab

All the best
Victor

Re: /opt 98% full...

Adrian Sobers2 — Fri, 05 Nov 2004 13:41:06 GMT

Victor,

Thanks, I will do this. Yes I did do something similar before practicing on the old server. Look, it came in handy!

One more question, how do I tell how much space I have to extend my volume groups? Is this available from a command or through SAM?

Re: /opt 98% full...

Victor BERRIDGE — Fri, 05 Nov 2004 13:49:14 GMT

Looking at your vgdisplay of vg00
you have
Free PE 2136
that means so many blocks of 8 MB...
You can lvextend to using -L ...
so I now would say -L 2500

So your new filesystem size after extendfs will be of 2.5GB..

All the best
Victor

Re: /opt 98% full...

Adrian Sobers2 — Fri, 05 Nov 2004 14:07:00 GMT

Victor,

I just drafted up a plan to extend the filesystem. Could you please review it and comment please? I'll pass it on to superiors after your feedback and confirmation ;)

Re: /opt 98% full...

Patrick Wallek — Fri, 05 Nov 2004 14:25:52 GMT

I think you will have a hard time umounting /opt even after you stop the Oracle processes.

Once Oracle is stopped, do an 'fuser -cu /opt' to see other processes are using the mount point.

I have a feeling you will find a lot.

I think it would be easier to reboot the machine, interrupt the boot, and then come up into single-user mode. At that point you can do all you need to do to extend /opt. Just note that in single-user mode you will need to use the statically linked LVM commands located in the /sbin directory.

Making and Ignite tape is a good idea, but I'm not sure why you are copying the kernel. You aren't making any kernel changes.

Re: /opt 98% full...

Adrian Sobers2 — Fri, 05 Nov 2004 14:47:13 GMT

updated plan

Re: /opt 98% full...

Victor BERRIDGE — Fri, 05 Nov 2004 15:37:57 GMT

Hi Adrian,
following Patrick advice will let you get more familiar with single user mode..
I vote for it not that the other alternativeisnt good I do it when needed but maybe experience makes me unaware of difficulties a novice may find...
So In single user you will go remember extendefs the character device rlvol6

the alternate method will be a init 2 or init S
With luck it will close all applications running, if not you will have to ...
then umount all the /opt/* lvol before /opt

extend...
then mount -a (lazy way)
then init 3 (4?)
You will see on the console the new processes start, you can see them logged in /etc/rc.log
if oracle doesnt have a stop/start script in /sbin/init.d linked to the good level (/sbin/rc3.d) then start oracle by ???

All the best
Victor