If you're keeping a tally of how many different packaging of the Proliant server line HP can come up with, add one more, actually two more: The StorageWorks D2D110 and D2D120 Backup System. The two systems have essentially the same form factor and features, the major difference being their capacity. With a post RAID 5 capacity of 750GB for the D2D110 and 1.5TB for the D2D120, each system makes available a small, If you’re keeping a tally of how many different packaging of the Proliant server line HP can come up with, add one more, actually two more: The StorageWorks D2D110 and D2D120 Backup System.The two systems have essentially the same form factor and features, the major difference being their capacity. With a post RAID 5 capacity of 750GB for the D2D110 and 1.5TB for the D2D120, each system makes available a small, easy to reach via iSCSI, VTL (virtual tape library) to small businesses.The emphasis seems to be on small and not only because of the capacity of these two systems. Only up to 4 servers can target each backup system, although HP makes no restrictions on mixing backup and application servers, which should allow backing up more than four application environments. Regardless of their nature each server should have a proper iSCSI initiator connected to the target GbE NIC of the backup appliance. The most common backup applications are supported and the new, internally developed VTL software can emulate an autoloader with 4 LTO-2 drives and 96 cartridges, according to HP.This first version of the VTL software doesn’t offer the possibility to move backups to a physical tape for vaulting, a feature that should become available later this year and at no additional charge, HP promises. Both models are available immediately. The D2D110 is priced at $2,000 but the extra capacity of the D2D120 will cost $1,000 more. Technology Industry