Specifications

Chapter 3. Attaching to a Hewlett-Packard 9000 host

This chapter describes the host system requirements and provides procedures to

attach an ESS to a Hewlett-Packard 9000 host with SCSI and fibre-channel

adapters.

Attaching with SCSI adapters

This section describes the procedures to attach a Hewlett-Packard 9000 host

system with SCSI adapters. For procedures about how to attach an ESS to

Hewlett-Packard 9000 host with fibre-channel adapters, see “Attaching with

fibre-channel adapters” on page 41.

Attachment requirements

This section lists the requirements for attaching the ESS to your host system:

v Ensure that you have the installation script files. The script file is on the compact

disc that you receive with the ESS.

v Ensure that you have 1 MB minimum of hard disk space available to install the

2105inst script file.

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

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

page 11.

Note: You must have special SCSI cables to attach the ESS to a Hewlett-Packard

host that has peripheral component interconnect (PCI) adapters installed.

The SCSI cables have built-in terminators on the host end. See the following

Web site for information about the special SCSI cable to attach the ESS to a

Hewlett-Packard host that has PCI adapters installed:

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. The 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 by using the instructions in your host

system publications.

Note: The IBM Subsystem Device Driver does not support the Hewlett-Packard

hosts in a clustering environment. To have failover protection on an open

system, the IBM Subsystem Device Driver requires a minimum of two

adapters. You can run the Subsystem Device Driver with one SCSI adapter,