Basically from my testing/researching last night, I'm not sure DSS will support this for Xen or VMWare (btw Virtual Iron is based on Xen I thought?).
Basically I needs to see the LV/LUN on multiple iSCSI targets, and in DSS I cannot map a Lv/LUN to multiple targets, is this correct?
From the Xenserver docs:
3.3.10. Storage Multipathing
Dynamic multipathing support is available for Fibre Channel and iSCSI storage backends. By default, it uses round-robin mode load balancing, so both routes will have active traffic on them during normal operation. Multipathing can be enabled in XenCenter or on the command line.
Caution
Before attempting to enable multipathing, verify that multiple targets are available on your storage server. For example, an iSCSI storage backend queried for sendtargets on a given portal should return multiple targets, as in the following example:
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