[Xen-users] xen sparce files on ocfs2/gfs

[Brock Palen <brockp@xxxxxxxxx>]

Well my two node xen cluster is coming along.  The nodes will mirror  
two partitions (using drbd) one for holding the xen images the other  
for user data  (global /home).    I figure i will export a ocfs2 or  
gfs filesystem to both node dom0's via iscsi.  They will then hold  
sparse files for the xen images (regular ext3).
Is this doable?   Is there a better way?  A dedicated shared storage  
box is out of the question for the foreseeable future.  I want to use  
heartbeat to provide HA ability and DRBD will keep the data  
mirrored.   I worry about having the iSCSI target having a floating  
ip with drbd.  And split brain,  both nodes try to attached to the  
sparefile for one domU.
Has anyone done anything similar?  And what about using GFS vs  
OCFS2 ?  I  would like to avoid sparce files, and export real  
devices,  something like a cluster aware LVM but finding information  
on such a thing on-top of DRBD has not been fruitful, and all the GFS  
options for providing such a feature has confused me with lack of  
decent documentation.  Help please.
I guess simplest is there a HOW-TO for a similar set up?  Two nodes  
no (physical) shared disk HA ability.
Brock Palen
Center for Advanced Computing
brockp@xxxxxxxxx
(734)936-1985



_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users