[linux-lvm] question about physical disks with LVM

Garrick Staples garrick at usc.edu
Wed Aug 11 23:34:34 UTC 2004

On Tue, Aug 10, 2004 at 03:32:39PM -0700, Parker.Christine at epamail.epa.gov alleged:
> Hello.  I got your name from the LVM man page in Enterprise Linux.  I
> have a question about creating one filesystem
> on multiple physical volumes:  can the physical volumes be of different
> sizes?
> Here's our situation:  We have a SAN setup here, and we currently have
> one filesystem that spans 10disks.
> We want to add 10 more disks (one DAE), but the new disks are larger
> than the old ones.  Will we be able to extend the old file
> system to include the new disks using LVM?  If not, can you suggest
> alternatives for us?

Yes, your can vgextend your VG to add the new larger drives.  Then you can
either create new LVs or lvextend an existing LV.

Garrick Staples, Linux/HPCC Administrator
University of Southern California
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