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Re: [linux-lvm] Best Practices deploying LVM



Ray Morris [support bettercgi com] wrote:
>     I don't know about a whitepaper, but I can address
> your example.
> 
> > he makes one volume group for each logical volume (more or less)
> 
>     If each one has one volume, that's not exactly a volume
> GROUP, is it?  If groups and volumes are basically synomous,
> he gives up all the benfits of groups.  In fact, he gives
> up most of the benefits of logical volumes, since each PV
> has to be in one group, and each VG is one LV, you're left
> with one LV per PV - might as well just use partitions
> directly.

I agree, you lose some flexibility but it has some advantage compared to
plain partitions without LVM. E.g. he can make a file system larger than
any disk with multiple disks in the above LVM (one LV per VG)
configuration.  There are other advantages. I am not sure the reason for
making only one LV per VG though!

Thanks, Malahal.


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