Hi Folks,
I find myself trying to expand a 2-node high-availability cluster from
to a 4-node cluster. I'm running Xen virtualization, and currently
using DRBD to mirror data, and pacemaker to failover cleanly.
The thing is, I'm trying to add 2 nodes to the cluster, and DRBD doesn't
scale. Also, as a function of rackspace limits, and the hardware at
hand, I can't separate storage nodes from compute nodes - instead, I
have to live with 4 nodes, each with 4 large drives (but also w/ 4 gigE
ports per server).
The obvious thought is to use Gluster to assemble all the drives into
one large storage pool, with replication. But.. last time I looked at
this (6 months or so back), it looked like some of the critical features
were brand new, and performance seemed to be a problem in the
configuration I'm thinking of.
Which leads me to my question: Has the situation improved to the point
that I can use Gluster this way?
Thanks very much,
Miles Fidelman
--
In theory, there is no difference between theory and practice.
In practice, there is. .... Yogi Berra
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