[Linux-HA] LVM mirrored volumes

Lars Marowsky-Bree lmb at novell.com
Fri Oct 8 02:32:27 MDT 2010


On 2010-10-07T10:54:28, Justin Burket <justin.burket at noaa.gov> wrote:

>  Hi,
> 
> I have two array's of the same size available via multipath to two
> machines.  I would like to setup a mirror of the LV's across both PV's
> but i'm worried about how well this will work in a clustered
> environment.  Will the mirroring function work properly with a clustered
> volume group?

With cmirrord, yes, it'll work fine.

> I'm also pondering where best to locate the log device.  I suspect
> putting it to disk would be best but the question becomes which disk. 

Newer versions support that you can put it on a mirrored LV too.


Alternatively, drbd in dual-primary mode may be a good choice (it
certainly has seen more field testing).


Regards,
    Lars

-- 
Architect Storage/HA, OPS Engineering, Novell, Inc.
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde




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