topic Re: vgchange in LInux in Operating System - Linux

vgchange in LInux

Ragni Singh — Wed, 23 Aug 2006 12:37:16 GMT

I'm running as4.0 redhat and i tlok slike eberything I reboot, I loose my volume groups. I only get ti back after doing a vgchange. What do I need to do to make my file-systems available after a reboot.

Points will be assigned.

Re: vgchange in LInux

sajeer_2 — Wed, 23 Aug 2006 12:45:20 GMT

Not sure about LINUX.In hp-ux,
Check your /etc/lvmrc file and make sure that the parameter AUTO_VG_ACTIVATE is set to 1.
This will enable auto activation of vgs.
There shuld be an equivalant file in LINUX too.

Also check the syslog file which gives any message about this.

sajeer

Re: vgchange in LInux

spex — Wed, 23 Aug 2006 12:46:59 GMT

Hi,

Make sure the appropriate stanzas appear in /etc/fstab so that the mountpoints persist across reboots.

# man fstab

for more info.

PCS

Re: vgchange in LInux

Steven E. Protter — Wed, 23 Aug 2006 12:49:05 GMT

Shalom,

There is no /etc/lvmrc

In Linux.

There is an equivalent file and it needs to be checked.

The vgchange command itself works pretty much like HP-UX but it was not a source code port, it was a feature port and its not an exact match.

Linux does have an excellent gui tool for LVM which can handle all these details for you in X Windows.

SEP

Re: vgchange in LInux

spex — Wed, 23 Aug 2006 12:55:57 GMT

Hi,

Also add "vgchange -a y " to /etc/rc.d/rc.sysinit for each vg before "Mount other filesystems".

PCS

Re: vgchange in LInux

melvyn burnard — Wed, 23 Aug 2006 13:38:19 GMT

posted in wrong forum, moved to more appropriate forum

Re: vgchange in LInux

David Child_1 — Wed, 23 Aug 2006 13:48:54 GMT

The config file is /etc/lvm/lvm.conf. Some settings to check are the filter and types settings. How these are set may depend on hardware, multipathing, etc. The file is fairly well annotated.

David

Re: vgchange in LInux

Bob_Vance — Thu, 24 Aug 2006 13:29:36 GMT

"/etc/rc.d/rc.sysinit" does a 'vgscan' (in 3 different locations) and if it returns OK, it then does a 'vgchange -a y'.

If this is a ServiceGuard box, then "/etc/rc.d/rc.sysinit" would have been modified not to do that.

If "/etc/rc.d/rc.sysinit" has *not* been modified, then it would appear that the 'vgscan' is returning an error and thus the 'vgchange' is not done.

hth
bv