Hi,

I'd like to limit the number of concurrent accesses to iSCSI and FC targets - in my case effectively to "1" That way I could make sure only one initiator at a time is accessing the volumes (as you may have guessed I'm talking about cluster environments).

I haven't found anything alike in the docs - OTOH, this should be easy to implement on the server (target) side. Have I overseen an option or is this currently not possible? If not possible right now, are there any plans to add such a feature in the (near) future?

With regards,

Jens

PS: I know cluster file systems with their distributed locking features could be used to limit access to shared file resources, but I'm looking at an alternative approach using FC (and iSCSI) devices for performance reasons - no need for a cluster FS if you simply want "one resource at a time" access. The FC / iSCSI targets in questions are the "disks" of Xen VMs, we're planing to use direct NPIV and iSCSI access within the VM configuration.