On Fri, 2005-11-11 at 15:38 -0500, David Brieck Jr. wrote: > On 11/11/05, Michael Will <mwill@xxxxxxxxxxxxxxxxxxxx> wrote: > > I don't see why that should be a problem, thats a common solution we > > recommend to > > customers even without GFS, doing just ordinary NFS and using heartbeat, > > active/passive > > is uncritical.You can even have two NFS mounts of separate partitions > > and have an active/active > > that fails over the missing one if one of the two machines goes down. > > This means you mount one > > from one IP address and the other from the other, and the IP address > > gets migrated over. > > > > This can even be done with SCSI attached storage (4TB per enclosure, up > > to two connected to > > a 1U server), but of course the fibre attached storage (direct attached > > as well as a complete san) > > is considered more reliable and performant. > > > > Michael Will > > Thanks Michael. We had a call with our hardware vendor and spoke about > the SAN solution after which they sent us a working estimate of costs > for a 7 server cluster. If we are able to use the aforementioned > storage solution in place of a fibre SAN we stand to save a > significant amount of money for an application that our IT department > just doesn't think it's necessary. > > We've got another call with them next week where they are going to try > to convince us that we're wrong and need to buy the SAN, I just want > to make sure I don't look like an idiot when they get one of their > engineers on the call and explain where I'm wrong and I'm not able to > defend myself. AC/NC's JetStor dual-SCSI stuff works for us under GFS. We also have a couple of large SANs (each about 26TB), but the small stuff works on JetStors. ---------------------------------------------------------------------- - Rick Stevens, Senior Systems Engineer rstevens@xxxxxxxxxxxxxxx - - VitalStream, Inc. http://www.vitalstream.com - - - - "The Schizophrenic: An Unauthorized Autobiography" - ---------------------------------------------------------------------- -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
