I am not looking for backup software - I already have backup software. I am looking to have a SCSI backup unit attached to a computer recognized from within a 2008 R2 VM. ISCSI target software I believe can do that. I just wanted some detail on if and how Open-e's ISCSI target software does that.
DSS can broadcast a target or use its initiator to connect to an existing target someplace else.
If you can use this scenario to back up to/from... go right ahead.
If you look at the resources To-M posted you will see that NAS volumes can be backup to a connected target with virtual tapes, and restored from the same virtual tape. More optins are at the same link as well.