Geoff Galitz wrote: > > > > I'm looking at using GFS for parallel access to shared storage, most likely > an iSCSI resource. It will most likely work just fine but I am curious if > folks are using anything with fewer system requisites (e.g. installing and > configuring the Cluster Suite). Export the iSCSI resource to a box and re-export it over NFS would be quite a bit simpler, sounds like your JPG needs are very basic, GFS sounds overkill. Note that iSCSI isn't very fast at all, if your array supports fiber channel I'd highly recommend that connectivity to the NFS servers over iSCSI any day. If your only choice is iSCSI then I suggest looking into hardware HBAs, and certainly run jumbo frames for the iSCSI links, use dedicated network connections for the iSCSI network. And if you want even higher performance use dedicated links for the NFS serving as well also with jumbo frames. If you really want GFS then I would look into running NFS over GFS with a high availability NFS cluster. Red Hat wrote this useful doc on how to deploy such a system: http://sources.redhat.com/cluster/doc/nfscookbook.pdf My company does something similar, that is we process terrabytes of data every day for our application, amongst a good 150 servers or so, today we are using a 520-disk BlueArc-based NAS solution that the company bought about 4 years ago, looking to replace it with something else as the NAS portion will be end of lifed soon. I absolutely would not trust any linux-based NFS or even GFS over a well tested/supported solution myself for this kind of requirement(most of the cost of the solution is the back end disks anyways). Though if the volume of data is small, and the I/O rates are small as well you can get by just fine with a linux based system. If your using iSCSI your performance bottleneck will likely be the iSCSI system itself anyways, rather than the linux box(s). nate