volume group vxvm

lolaferrari
lolaferrari used Ask the Experts™
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I would like to understand what the volume group in veritas is in veritas and how it differs to a volume.

As I understand just now the disk group is made up of vm disks and a volume is made up of plexes.

the syntax as i understand is /dev/vx/dsk/dg/volume - which of these is the volumde group - is it the same as dg ? Sorry I'm a little confused
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Senior Systems Administrator
Commented:
I think you're talking about the same thing.

Disk group is a number of physical disks. A volume group can be the same thing and a volume resides in a vg/dg which uses a plex. if I remember correctly there are also subdisks in plexes.

I will see if I can find more info in a bit.
Commented:
Volume group is diskgroup in vxvm.
for instance dg is diskgroup which is analogus to volume group.

>>>the syntax as i understand is /dev/vx/dsk/dg/volume - which of these is the volumde group - is it the same as dg ? Sorry I'm a little confused

Yes it is the same as dg.

Like:

/dev/vx/dsk/bootdg/rootvol

here bootdg is the dg or in your word it is Volume group and rootvol is the volume.

Regards
Umesh Panwar

Author

Commented:
thanks for clearing that up

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