StorageWorks Solutions HSD05 Array Controller User's Guide

This user guide for the Digital Equipment Corporation HSD05 Array Controller, part of the StorageWorks family, provides comprehensive instructions for its installation, configuration, operation, and troubleshooting.

Key aspects covered include:

• Functionality: The HSD05 Array Controller acts as an entry-level bus controller, connecting a host's Digital Storage Subsystem Interconnect (DSSI) bus to up to seven Small Computer System Interconnect (SCSI) disk, tape, or solid-state devices.

• Installation & Configuration:

  • Details site preparation, unpacking, and physical installation in an SBB shelf.
  • Explains how to set crucial device configurations such as DSSI ID and SCSI ID using onboard switches.
  • Covers setting various operational parameters (e.g., NODENAME, DISKALCS, TAPEALCS) using the PARAMS configuration utility, accessed via the OpenVMS Diagnostic and Utility Protocol (DUP) server.

• Operation:

  • Describes the UTILIT onboard utilities for day-to-day tasks, including monitoring device status, formatting, qualifying, and exercising SCSI disk and tape devices.

• Troubleshooting & Maintenance:

  • Provides guidance on interpreting onboard LED indicators for internal faults.
  • Explains how to use OpenVMS error logs (Type 1 for SCSI port, Type 2 for SCSI command) to diagnose issues.
  • Outlines the cold-swap procedure for removing and replacing the HSD05 Array Controller.

• Features & Limitations:

  • Supports multihost configurations, warm-swapping of attached drives (when the SCSI bus is quiesced), and host-based striping/volume shadowing.
  • Does not support controller-based RAID functionality or hot-swapping of the controller itself.
  • Identifies attached devices as specific Digital disk (RF72/RA82) or tape (TU81) drive types.

The document, published in February 1994, also includes detailed physical and environmental specifications, along with cabling diagrams for DSSI interconnections.