
1 B efore you s tart
In this chapter:
• “Overview” on page 15
• “Optional tape at tach one” on page 15
•
“Software a nd hardware requirements” on page 16
•
“Terminology” on page 16
•
“Storage capacity” on page 19
• “Compression” on page 21
Overview
The HP StorageWorks D2D B a ckup System is an iSCSI disk-based storage appliance that emulates up to
six tape devices; these tape devices can be used to back up a maximum of six host net work servers or
PCs. Each ta
pe device is configured as an 1x8 G2 Ultrium Tape Autoloader (or standalone Ultrium Tape
Drive). Au
toloaders may be configured with between 8 and 24 slots.
1. LEDs
4. Network connector
2. Pow
er On button
5. P ow
er connector
3. Location for optional attached tape drive (see “Attaching a p hysical tape drive”onpage29)
Figure 1 Front and rear view of the HP D2D Bac kup System
Optional tape attach
An Ultrium Tape Drive may be at tached directly to the HP D2D Backup System, allowing the user to store
backups offsite. An internal tape d rive must be half-height and is installed in the half-height bay above
the LEDs, labeled 3 on Figure 1. External tape drives may be half-height or full-height. Both SAS and
SCSI tape drives are supported and require installation of a host bus adapter (HBA).
D2D Backup System
15
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