Specifications

Chapter 2. Attaching to a Compaq host

This chapter describes the host system requirements and provides the procedure to

attach to an ESS to a Compaq AlphaServer with SCSI adapters or fibre-channel

adapters.

For information about the Compaq AlphaServer models that you can attach to the

ESS, see the following Web site:

www.storage.ibm.com/hardsoft/products/ess/supserver.htm

Attaching with SCSI adapters

This section describes how to attach an ESS to a Compaq host system with SCSI

adapters. For procedures on how to attach an ESS to a Compaq host system with

fibre-channel adapters, see “Attaching with fibre-channel adapters” on page 27.

Attachment requirements

This section lists the requirements to attach the ESS to your host system.

v Check the logical unit number limitations for your host system. See Table 6 on

page 11.

v Ensure that you have the documentation for your host system and the IBM

Enterprise Storage Server User’s Guide. The User’s Guide is on the compact

disc that you receive with the ESS.

v See the following Web site for details about the release level for your operating

system:

www.storage.ibm.com/hardsoft/products/ess/supserver.htm

Either you or an IBM service support representative (SSR) must perform the

following tasks to install and configure an ESS.

1. An IBM SSR installs the ESS by using the procedures in the IBM Enterprise

Storage Server Service Guide.

2. You assign the SCSI hosts to the SCSI ports on the ESS.

Note: Use the information on the logical configuration work sheet in the IBM

Enterprise Storage Server Configuration Planner that you should have

previously filled out.

3. You configure the host system for the ESS. Use the instructions in your host

system publications.

Note: The IBM Subsystem Device Driver does not support the Compaq open

system in a clustering environment.

Installing and configuring the Compaq Tru64 UNIX Version 4.0x host

system

Use the following procedures to install and configure the ESS with hosts running

Compaq Tru64 UNIX Version 4.0x.

Console device check

Use the following procedure to perform a console device check.

1. Push the halt button to turn on the AlphaServer.