iSCSI failover and reconfiguration

[Mike Kazar <kazar@icubed.com>]

In the iSCSI protocol document, a SCSI target is named by a URL, with the 
assumption being that DNS would map the domain name to a set of IP 
addresses.   This works fine when the set of servers that might be 
supporting the SCSI target is fixed for all time.

In the NFS V4 specification, the protocol allows the migration of a file 
system from one server to another, by allowing for an error code that 
directs the initiator to a new location for that file system.

I believe that this would be a useful feature to have in iSCSI as 
well.  With the addition of a distinctive error that indicates 
responsibility for a particular target has been moved to a different URL, 
migration of a SCSI target between IP hosts could be achieved in iSCSI, 
just as migration of file system can be performed in NFS V4.

Do other readers think this would be a good thing to support in iSCSI?

	Mike
		(kazar@spinnakernet.com)