Specifications

For procedures that describe how to attach a Windows 2000 host system with SCSI
adapters, see “Attaching with SCSI adapters” on page 137.
Attachment requirements
This section lists the requirements for attaching the ESS to your host system:
v Check the LUN 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. The IBM SSR installs the ESS by using the procedures in the IBM Enterprise
Storage Server Service Guide.
2. 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. 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 1.3.0.0 of the IBM Subsystem Device Driver supports the Windows
2000 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 2000 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 PARCH target volume.
Installing the QLogic QLA2100F adapter card
This section tells you how to attach an ESS to a Windows 2000 host system with
the QLogic QLA2100F adapter card.
Chapter 12. Attaching to a Windows 2000 host 143