1 Before you start
In this chapter:
• “Overview” on page 19
• “Optional tape attach” on page 21
• “Software and hardware requirements” on page 21
• “Terminology” on page 21
• “Storage capacity” on page 25
Overview
The HP StorageWorks D2D Backup System is an iSCSI and Fibre Channel disk-based storage appliance
that emulates up to 24 tape devices, which can be used to back up host network servers or PCs. Each
tape device is configured as an Ultrium Tape Library or Autoloader. An emulation type is selected
during initial configuration and this determines the maximum number of drives and the maximum
number of slots that may be configured for the device. The default configuration emulates the HP
StorageWorks MSL2024 Tape Library.
D2D Backup System HP D2D4112 19