On Wed, 6 Jan 2010, Hakan Koseoglu wrote:
> Seconded. Also you can chain a couple of MD1000s at the back of the
> MD3000 to get even more storage over SAS. We have a number of those
> with the upstream OS installed but usually a single MD3000 is enough
> for what we use them for (mainly Oracle DB server or VMWare hosts). We
> tend to split the storage between two nodes and then do OCFS2.
For the cost/performance they're not too bad a unit. We grow by about
45TB per year of Medical Imaging Data. For each 15TB we buy a new head
node, we're up to three now, so performance to our cluster just gets
better as we go. These are all NFS/CIFS servers on a Jumbo Frame ethernet
network. I originally had difficulty with the MD3000 talking multipath to
the units and the only way I could get it to work reliably in an
active/active configuration was to use the provided mptsas driver which
was a cinch to install.
This was not the case with the Solaris hosts as they didn't talk RAID and
ZFS with Solaris Multi-Pathing had built in support for the devices.
--
James A. Peltier
Systems Analyst (FASNet), VIVARIUM Technical Director
HPC Coordinator
Simon Fraser University - Burnaby Campus
Phone : 778-782-6573
Fax : 778-782-3045
E-Mail : jpeltier@xxxxxx
Website : http://www.fas.sfu.ca | http://vivarium.cs.sfu.ca
http://blogs.sfu.ca/people/jpeltier
MSN : subatomic_spam@xxxxxxxxxxx
Treat your password like your toothbrush. Don't let anybody
else use it, and get a new one every six months.
- Clifford Stoll
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos
