[CentOS] GFS

Fri May 30 03:21:39 UTC 2008
Jay Leafey <jay.leafey at mindless.com>

Mag Gam wrote:
> Hello:
> I am planning to implement GFS for my university as a summer project. I 
> have 10 servers each with SAN disks attached. I will be reading and 
> writing many files for professor's research projects. Each file can be 
> anywhere from 1k to 120GB (fluid dynamic research images). The 10 
> servers will be using NIC bonding (1GB/network). So, would GFS be ideal 
> for this? I have been reading a lot about it and it seems like a perfect 
> solution.
> Any thoughts?

"Perfect"?  No, but usable.  We've got a cluster of 4 systems attached 
to a fibre-channel-based SAN running CentOS 4 and the Cluster Suite 
components with multiple instances of the Oracle database.  It actually 
works pretty well and fails over nicely in the case of exceptions.  It 
is moderately complex to set up, but the information needed REALLY IS in 
the docs... you just have to REALLY read them!

We haven't tried CentOS 5 and the new cluster components as Oracle only 
supports the version of the  database we're running on Red Hat EL4. 
Given that, the combination looks a bit more "finished" than the 
versions in EL4.

Another alternative that we are examining is using OCFS2 (Oracle Cluster 
File System 2) and iSCSI for the shared storage with Heartbeat for 
service management.  This combination looks to be a bit "lighter" than 
the Cluster Suite and GFS, but I'm hoping to confirm or disprove that 
impression this summer in my "copious free time".

As usual, you mileage may vary.
Jay Leafey - Memphis, TN
jay.leafey at mindless.com
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