HSG80 Array Controller

This document, the HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide, is a comprehensive technical manual for the Compaq HSG80 array controller. It covers the following key areas:

• Subsystem Overview: Details the major hardware components of the HSG80 subsystem, including controllers, cache modules, environmental monitoring units (EMU), and power verification and addressing (PVA) modules.
• Controller and Host Concepts: Explains failover modes (Transparent and Multiple-Bus), caching techniques (Read, Read-ahead, Write-through, and Write-back), and fault-tolerance policies.
• Controller and Host Addressing: Defines the PTL (Port-Target-LUN) naming convention, LUN mapping, and unit addressing schemes.
• Storageset Planning and Configuration: Provides step-by-step procedures for planning, configuring, and managing RAIDsets, mirrorsets, stripesets, and partitions.
• CLI Commands: Contains a full reference for the Command Line Interpreter (CLI) commands used to manage the controller, devices, and host connections.
• System Specifications: Includes technical specifications for power, electrical, and environmental requirements.