/etc/lvmconf too large

[Test e Collaudo Dipart.]

Hi!
I have 277 vg configured on a production cluster and if I run vgcfgbackup for each vg the filesystem / becomes full, so I don't have a vgxx.conf for each VG and the root almost full!
I cannot extend the filesystem on line (contiguous allocation policy).
There are more solution for this problem,
here my suppositions:
1) Backup/restore vg00
2) pvmove lvol4 (but not all the system have more than 2 mirrored diks)
3) /etc/lvmconf as mountpoint for a new filesystem
4) a daily scheduled mv of all the vgxx.conf in the /etc/lvmconf directory

1,2,3 solutios need a LVM or system stop
4 is very unusual
I'd like to avoid any interruption

Any other idea?

...Is it possible to have /etc/lvmconf as a link?
Thank you!

Vale et valete
ZAMPO

[Shaikh Imran]

Hi,
you can try using -f option with vgcfgbackup
-f option allows you to specify the backup directory other than default.
the syntax is
vgcfgbackup -f /tmp/vg00.conf vg00

Regards,

[Robert-Jan Goossens_1]

Hi,

How large is root filesystem and how large is the /etc/lvmconf? Did you check if there are other large unwanted files in root?

# du -kx / | sort -rn > /tmp/du.list
# find . -type f -size +1000 -xdev -exec ll {} \;

Just a thought :-)

Robert-Jan

[Sunil Sharma_1]

Hi,

What about using -f with vgcfgbackup

/sbin/vgcfgbackup [-f vg_conf_path] [-u] vg_name


See man pages for more details


Sunil

[Prashant Zanwar_4 · Accepted solution]

Hi,
Try and get rid of the stuff which is unuseful. Try and see of there are any core, text, doc, pdf, log files which can be easily removed.
And I would suggest to create a link to specified directory.

Say create some directory where ample space is available and create a link across, so your actual data is at different location while vgcfgbackup sees it the same location.

ln -s /var/adm/crash/etc_lvmconf /etc/lvmconf, make sure to have mirrored copies of the same.

Thanks
Prashant

[Test e Collaudo Dipart.]

Thanks to everybody!
But my root filesystem is about 300 Mb and about 50% is full.
Each vgxx.conf is about 1,5 Mb; 277 vg configured... 415,5 Mb...
Each time a vg is modified, the vgxx.conf is produced, and the old one is renamed as .old!
Is it possible to set as default another directory? (not a manually backup usign vgcfgbackup)
The /etc/lvmconf is busyed by the cmlvmd deamon; are there any counterindication to have a link instead of a directory as Prashant suggest?

Vale et valete
ZAMPO

[Pete Randall]

Replace /etc/lvmconf with a link to another location where you have sufficient room. That should solve your problem.


Pete

[Test e Collaudo Dipart.]

Ok, many thanks to all!
I've made an external filesystem where to store all the vgxx.conf and to the next system reboot I will substitute the /etc/lvmconf directory with a link to that filesystem

Vale et valete
ZAMPO