Figure 1–1 HSD05 Array Controller
CXO-4052A-PH
• DUP support for modifying operating parameters, such as DSSI nodename
and device allocation classes
• Host-based striping
• Host-based volume shadowing (with some restrictions)
The HSD05 array controller also exhibits the following performance metrics:
• 500+ requests/second (aggregate)
• 1.7 MB/second sustained throughput (aggregate)
Each device served by the HSD05 array controller is independently addressable.
Attached disk, tape, and solid-state drives appear to the host as standard
DIGITAL storage architecture (DSA™) devices. Disk allocation class is user-
definable, with all attached disks sharing the class value. Tape allocation class is
independently user-definable in the same manner.
The HSD05 array controller identifies itself on the CI™ bus as a device of type
RF72; its software revision is RFX B1. This identification is in device name only,
and does not reflect actual device geometries.
1–2 Introduction
