At the moment I'm implementing two stage backup process using the software and technique as per the attached diagram,
Note: The network between iSCSI SAN andthe 2x ESXi servers are different subnet (see the color coding)
Blue cylinder indicates NTFS partition while the Black cylinder indicates the VMFS
First backup process is to grab all of the VMs inside the MD3000i VMFS (green cylinder partition 1) initiated by the Windows XP backup VM which canl grow to be more than 1 TB hard disk drive to contains the backup VM (day 1 - since the backup took more than 20 hrs). --> should i choose -m SAN mode ?
Second step is to copy the big Windows XP machine which contains the day before backup of VM from the iSCSI SAN into the Backup server for tape archival (day 2) --> perhaps i should use -m NBD mode for this time ?
Any other suggestion please from this two steps backup scheme would be greatly appreciated.