[DRBD-user] Where to put LVM

Nathan Stratton nathan at robotics.net
Tue Nov 11 12:46:07 CET 2008

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

A few people on the xen mailing have been talking about:


It talks about running DRBD on top of LVM. Is the above method faster 
then running LVM on top of DRBD? The biggest downside of the above howto I 
can see is that you must configure DRBD for every DomU. So what is best 
out of the three?

Disk > Partition > DRBD > LVM > xen phy:{lvm lv}
Disk > Partition > LVM > DRBD > xen drbd:{drbd disk}

Of since I don't think you can resize if you put DRBD on LVM, just:

Disk > Partition > DRBD > xen drbd:{drbd disk}

I know they all must be faster then what I am doing now:

Disk > Partition > DRBD > LVM > gfs > xen tap:aio{file}

Nathan Stratton                                CTO, BlinkMind, Inc.
nathan at robotics.net                         nathan at blinkmind.com
http://www.robotics.net                        http://www.blinkmind.com

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