cluster FS?

[Jordan Hubbard]

> On Oct 1, 2014, at 11:08 AM, Anton Shterenlikht <mexas at bris.ac.uk> wrote:
> 
> The model that I'm describing is a VMS cluster model.
> I'm not sure if it makes sense for FreeBSD.

It does not.  FreeBSD does not currently offer any form of clustered filesystem support, nor would a SAN provide this in any case since it’s just a shared fabric for a single set of storage devices.   You could front-end your SAN with a NAS, but that would simply re-export the SAN as a shared file system such as NFS, which would let multiple clients see it but still provide no fail-over if the NAS or primary SAN controller died.

You are trying to create an active/active fail-over system with multiple modes.  You cannot get there from where you are starting.  This is basically a “start over” proposition, and why folks like NetApp and EMC sell a lot of fileservers to replace existing SAN solutions.

- Jordan