© Copyright IBM Corp. 2007. All rights reserved.
493
Draft Document for Review August 30, 2007 12:59 am
7065FC_Config3.fm
Chapter 21.
FC configuration 3 - Linux SAN
boot with System x 3755
This sample configuration shows how to configure Linux SAN boot from the DS3400
subsystem. A host server, IBM System x 3755, with a dual-port QLogic-based FC HBA will be
connected to a dual-controller DS3400 across a FC SAN. We will define a logical drive on the
DS3400 and map our host server to it. Our goal is to configure the server so that it will boot
into Red Hat Enterprise Linux 4 from the logical drive on the DS3400.
The installation steps are as follows:
1. Configure the first FC HBA port - note its WWN and enable its BIOS.
2. Create a zone on the SAN switch for the first HBA port and controller A.
3. Create a logical drive for the operating system on the DS3400. This logical drive will be
mapped to our host server as LUN 0. At this stage, you should define the host server with
one host port only (first HBA port WWN).
4. Use the FC HBA BIOS utility to define the logical drive as boot device.
5. Install Red Hat Enterprise Linux 4 on the logical drive. When Linux installation completes,
update the FC HBA driver and install Linux RDAC (MPP).
6. Create a zone on the SAN switch for the second FC HBA port and controller B.
7. Add second host port (second FC HBA port WWN) to the host server definition in the
DS3000 Storage Manager.
8. Verify that both controllers are accessible from the host server and test I/O path
redundancy.
21
