User`s guide

18 Implementing an Open IBM SAN
1.6 Compaq host system FC attachment
This topic describes the host system requirements and provides the procedure to
attach a Compaq Alpha server to an ESS. The ESS supports the following
Compaq Alpha server models:
򐂰 2100
򐂰 4100
򐂰 8200
򐂰 8400
1.6.1 Attachment requirements
This section lists the requirements to attach the ESS to your host system.
򐂰 Ensure that you have all of the items listed in Equipment requirements.
򐂰 Check the logical unit number limitations for your host system. See Table 2.
򐂰 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.
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 IBM ESS.
1. An IBM SSR installs the IBM Enterprise Storage Server by using the
procedures in the IBM Enterprise Storage Server Service Guide.
2. Either you or an IBM SSR assigns the Fibre Channel hosts to the Fibre
Channel ports on the ESS.
3. Either you or an IBM SSR configures the host system for the ESS. Use the
instructions in your host system publications.
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.
Note: The IBM Subsystem Device Driver does not support the Compaq open
system 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 Fibre Channel
adapter, but you have no failover protection. The maximum number of
adapters supported is 32.