Slightly OT: Distributed filesystems

[Eric.Jorgensen at westernunion.com]

Hello,

I have several 2950s grouped together in Oracle RAC clusters with a SAN 
used for shared storage.  I'd like to setup another LUN from the SAN and 
make it available on all nodes of a cluster.  I realize that Oracle RAC 
has this functionality already, but we are using ASM and I'd like the 
files to be readable outside of Oracle (i.e. to Netbackup), so I believe 
that using Oracle's tools will not work.

Moreover, I've been looking at Redhat's Global Filesystem, but it appears 
that hardware is needed for fencing.  This seems to me to be overkill, as 
we already have Oracle handling all the clustering, and I'd rather not 
piggyback on the private NICs for example, for fear of breaking Oracle 
RAC.

So what I'm looking for is a filesystem I can use to mount the LUN on each 
node.  Any pointers would be appreciated, especially any experience with 
GFS with non-hardware fencing, OCFS2 without ASM, etc.

Thanks,

Eric




Eric Jorgensen
Sr. Systems Administrator, WU Corporate Systems
Office:  720-332-5615  Ext:  65615
Cell:  303-589-6630   FAX:  720-332-7627
Email:  eric.jorgensen at westernunion.com
12500 E Belford Ave M12SD  Englewood CO 80112

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