[PVE-User] Disk layout question

Michael Rasmussen mir at miras.org
Tue Aug 14 23:06:07 CEST 2012


On Tue, 14 Aug 2012 16:48:14 -0400
Shain Miley <smiley at npr.org> wrote:

> 
> I was also wondering if this kind of disk layout (using multiple lvm partitions) will still work well with vzdump/vzrestore...for example...how would I tell vzrestore which set of disks to restore to?
> 
This is not advisable. The more disk in your RAID10 the more IOPS you
get. LVM is also degrading your IOPS but LVM is required to be able to
make live migration.

Theoretical rule of thumb. IOPS in RAID is calculated this way:
read: sum of IOPS of all disk in the array.
write: sum of IOPS of all disk in the array divided by 2

-- 
Hilsen/Regards
Michael Rasmussen

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