Specifications

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. The IBM SSR installs the ESS by using the procedures in the IBM Enterprise
Storage Server Service Guide.
2. Either you or an IBM SSR defines the fibre-channel host system with the
worldwide port name identifiers. For the list of worldwide port names see
“Appendix A. Locating the worldwide port name (WWPN)” on page 153.
3. Either you or an IBM SSR defines the fibre-port configuration if you did not do it
during the installation of the ESS or fibre-channel adapters.
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.
4. Either you or an IBM SSR configures the host system for the ESS by using the
instructions in your host system publications.
Notes:
1. Version 1.2.1 or later of the IBM Subsystem Device Driver supports the
Windows NT 4.0 host system in a clustering environment. To have failover
protection on an open system, the IBM Subsystem Device Driver requires a
minimum of two fibre-channel adapters. The maximum number of fibre-channel
adapters supported is 16 for a total of 16 fibre-channel ports.
See the following web site for the most current information about the IBM
Subsystem Device Driver:
www.ibm.com/storage/support/techsup/swtechsup.nsf/support/sddupdates
2. To improve performance, IBM recommends that you map to the LUNs for the
target volumes of the Windows NT host until you need access to the data on
the target volume. Perform the LUN mapping after the Peer-to-Peer Remote
Copy operation and immediately before you need access to the data. You must
restart the host system before you can access the data on the target volume.
You can greatly reduce the time it takes for the host system to restart if you
perform the LUN mapping. Otherwise, the time to restart could take 10 minutes
per Peer-to-Peer Remote Copy target volume.
Installing the QLogic QLA2100F adapter card
This section tells you how to attach an ESS to a Windows NT host system with the
QLogic QLA2100F adapter card.
Note: The arbitrated-loop topology is the only topology available for the QLogic
QLA2100F adapter card.
Perform the following steps to install the QLogic QLA2100F adapter card:
1. Install the QLogic QLA2100F adapter card in the host system.
2. Connect the cable to the ESS port.
3. Restart the host system.
4. Press Alt+Q to get to the FAST!Util menu.
5. From the Configuration Settings menu, select Host Adapter Settings.
Chapter 11. Attaching to a Windows NT 4.0 host 127