4 Apr
2012
4 Apr
'12
1:45 p.m.
On Wed, Apr 04, 2012 at 11:03:07PM +1000, Russell Coker wrote:
DRBD has some big down-sides. It loses performance and it will reboot nodes if it thinks that there is a split-brain.
OTOH, have you seen what use google's ganeti has made of DRBD layered on top of LVM? each node in a ganeti cluster has a vg with the same name, when you provision a new VM, it builds a new lv on two of the cluster nodes and binds them together with drbd. redundancy and migration/failover without a SAN. add more nodes to the cluster and it can even re-balance the vms to spread the load evenly. very clever. http://code.google.com/p/ganeti/ craig -- craig sanders <cas@taz.net.au> BOFH excuse #27: radiosity depletion