Is it possible to directly connect two Xserves with a Promise VTrak E610fD via Fibre?

I have two Xserves and I'd like to connect them with a Promise VTrak E610fD. As this storage has two controllers, I'd like to connect both Xserve with both controllers. Is this setup possible? Can I access (read and write) the same disk array with both Xserves simultaneously (Xsan?) or do I have to create two separate arrays?

Hello bleistift, and welcome to the AppleBoards,
Fibre channel is SCSI which means that any device connected by fibre assumes it is in sole control of that device. When you attach more than one machine via fibre both machines assume they are in control and unexpected behaviors and data corruption ensues. SAN (like Apple's XSAN) provides a layer of arbitration over the shares allowing multiple fibre connections to play nicely with one another while still being connected over fibre.
You could easily connect two machines to a single RAID box if they are accessing different RAID volumes at the same time, but once you start connecting to the same data at the same time you need SAN.
HTH,
=Tod

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