[linux-lvm] LVM on RAID

Fabien Jakimowicz fabien at jakimowicz.com
Wed Sep 20 15:57:53 UTC 2006

On Wed, 2006-09-20 at 09:48 -0500, Alexander Lazarevich wrote:
> I should have been more clear. I'm not worried about LVM on one RAID. My 
> questions is specifically about creating an LVM volume group ACROSS two 
> RAID's.
> For example, we have a 64bit linux server, with two different RAID devices 
> attached to the host via Fiber. These RAID's are each 4TB volumes. The 
> RAID is attached as /dev/sda and /dev/sdb. What I'm asking about is 
> creating a LVM volume group, and joining /dev/sda AND /dev/sdb to that 
> same volume group, creating the lv of 8TB (minus overhead of course), and 
> then creating a filesystem on that lv. A 8TB filesystem, which is spanned 
> (via LVM) across both RAID's.
> Does anyone here do that? Reading all the reply's I realize I wasn't clear 
> enough about that, and neither was anyone's responses.
> Alex
I have a 'similar' configuration, with less expansive hardware ;)

i have an LVM VG built with 4 software raid arrays, each array is a two
hard drives in raid1.
Fabien Jakimowicz <fabien at jakimowicz.com>
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