Compaq Storageworks Installing an HSG80 Fibre Channel Controller GLM

This document provides detailed instructions for installing and replacing Gigabit Link Modules (GLMs) in Compaq HSG80 Fibre Channel Array Controllers, covering both single-controller and dual-redundant configurations, with specific procedures for ACS Version 8.x and 8.2.

General Process (Applies to most scenarios):

1. Preparation & Safety: Always use electrostatic discharge (ESD) precautions (e.g., a grounded wrist strap). Dismount logical units from the host console.
2. Controller Shutdown: Depending on the configuration, shut down the relevant controller(s) using SHUTDOWN THIS_CONTROLLER or SHUTDOWN OTHER_CONTROLLER.
3. Physical Removal: Disconnect host bus cables, remove the program card, unsecure the access door, disengage the GLM's locking tabs and release levers, then carefully pull out the GLM.
4. Physical Installation: Carefully insert the new GLM, ensuring proper alignment with guide pins, and firmly pressing it into place to secure it.
5. Post-Installation: Reconnect host bus cables, reinstall the program card, and restart/verify the controller(s).

Key Differences by Configuration:

• HSG80 ACS Version 8.x Single Controller & 8.0 Dual-Redundant Controller:

  • The process involves more direct manual steps for shutdown, removal, and installation.
  • Verification and time setting are done via commands like SHOW THIS_CONTROLLER FULL and SET THIS_CONTROLLER TIME.

• HSG80 ACS Version 8.2 Dual-Redundant Controller:

  • This procedure heavily relies on the FRUTIL (Field Replacement Utility).
  • Removal: Requires disabling failover (SET NOFAILOVER), running RUN FRUTIL, and following its interactive menu to quiesce device ports and guide the removal of the controller containing the GLM.
  • Installation: Also uses RUN FRUTIL to manage the process, including guiding the insertion of the new controller, restarting the "other controller" (RESTART OTHER_CONTROLLER), and finally re-enabling failover and copying the subsystem configuration (SET FAILOVER COPY=THIS_CONTROLLER).

Important Cautions:

• ESD: Crucial to prevent damage to the controller or GLM.
• Alignment: Proper alignment of the controller in its guide rails is vital to avoid damage to the backplane.
• Quiescing: Allowing device ports to fully quiesce (especially when prompted by FRUTIL) is essential to prevent data loss.