hello

using LVM in a clustered enviroment ...
can someone tell me what exactly a PVG is and what is it used for?

thank you very much!

TEST
<hkgf7@yahoo.com> a écrit dans le message de news:
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> hello
>
> using LVM in a clustered enviroment ...
> can someone tell me what exactly a PVG is and what is it used for?
>
> thank you very much!
>

Hi

> using LVM in a clustered enviroment ...
> can someone tell me what exactly a PVG is and what is it used for?

A Physical VolumeGroup is the possibility to separate physical disk
devices [1] within a volumegroup in a way to use them easy for mirroring
and/or extent based striping.
Usually it is quite complicated to force LVM to use dedicated physical
devices for dedicated parts of a mirror if you have several physical
devices. If you use physical volume groups you can set the lvols to
pvgstrict (lvchange -s g ...).


Florian

[1] Means /dev/dsk/...; in fact these may represent either real disks or
LUNs on storage systems.