How to activate a volume group automatically ?

[Julio Quadros_1]

Hello

I have a cluster of 2 machines running MC Service Guard. I've just added a new disk and created a new volume group on it. On that volume group I created a logical volume and created a new filesystem, mounted on mount point /xpto. I want to make things permanent, ie, when the system comes up i want to have the volume group active and the filesystem mounted. To mount the filesystem, i've edited /etc/fstab and put an entry to do it. Now, how to make the volume group activation permanent ?

Thanks for your help

Julio Quadros

[Martin Johnson]

Is this volume group part of the MC Service Guard application? If so, activation of the volume group should be part of the package.

HTH
Marty

[Mike Hassell]

Julio,

I think this is done by default, as long as you have added the filesystem in /etc/fstab you should be set. Unforunately, I can't think of a way you can verify this off the top of my head.

Hope that helps.

-Mike

[Patrick Wallek]

Julio,

Check out this thread from the Forums:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xc37042308663d611abdb0090277a778c,00.html

By the way, I searched on "auto activate vg" within the Forums and got this result.

[Tim D Fulford]

1 - vgchange -c y
2 - edit /etc/cmcluster//.sh & include new vg e.g
VG[0]="vgapp1"
VG[1]="vgnew"

Also put in the mount stuff if required

Tim

[Julio Quadros_1]

Thanks a lot from your help. Now i know I have 2 options: either I make the vg part of MC Service Guard, and attach it to a package, or I keep it out of it and in this case, I will need to edit /etc/lvmrc and add a vgchange for my vg in the custom_vg_activation function. Is this correct ?

Thanks

JQ

[Rainer von Bongartz]

Is this correct ?


Absolutely

Regards
Rainer

[melvyn burnard]

If this vg is NOT part of your SG package configuration, then add the entry into /etc/lvmrc to allow the system to auto activate this specific VG on boot.

[Julio Quadros_1]

Thank you all for you help !

JQ

[Sanjay_6]

Hi Julio,

If this VG is part of the SG package, it will be activated by the SG package control file. If not you can include this VG in the /etc/lvmrc file where AUTO_VG_ACTIVATE is set to "0",

The non-SG VG that you want to activate automatically should be added like this,

custom_vg_activation()
{
# e.g. /sbin/vgchange -a y -s
# parallel_vg_sync "/dev/vg00 /dev/vg01"
# parallel_vg_sync "/dev/vg02 /dev/vg03"
/sbin/vgchange -a y -s /dev/vg_name
parallel_vg_sync "/dev/vg_name"
return 0
}

Hope this helps.

Regds

[Bart Beeren]

Julio,

if all the information given helped you that much, please be so kind to assign the people who helped you the points they do deserve.

BB