HP A7143A RAID160 SA Controller Support Guide, February 2007

Installing the RAID160 SA Controller
Setting up a RAID160 SA Controller As a Boot Device
Chapter 4
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Setting up a RAID160 SA Controller As a Boot Device
The RAID160 SA controller can be set up as a boot device. To do this, you actually set up a logical drive on the
controller as a boot device.
On each RAID160 SA controller, any number of its logical drives can be set up as boot devices. For example, if
you have two controllers in a system, and each controller has three logical drives configured on it, you could
set up two logical drives on one controller as boot devices, and all three logical drives on the other controller
as boot devices, giving you a total of five boot devices.
Considerations
Things to consider before you set up a RAID160 SA controller as a boot device:
• While you are using a RAID160 SA logical drive as a boot device (that is, while HP-UX is running on it),
you are limited in the configuration tasks you can perform with the saconfig configuration utility. This is
because saconfig sees the logical drive as being in use, so any kind of configuration changes affecting
that drive are not allowed until you are no longer using it as the boot device.
• When you are not using a logical drive as a boot device, if you clear the controller’s configuration, that
logical drive will also be deleted. If you still want a logical drive to be set up as a boot device, you will need
to configure a logical drive and then complete the entire boot setup process again.
• If you have trouble accessing your RAID boot data, only limited troubleshooting tools are available. HP
recommends booting from an alternative boot media and using STM and sautil online tools. See Chapter
6 of the HP A7143A RAID160 Support Guide, for more information.
Dependencies
The following dependencies must be met before a RAID160 SA controller can be set up as a boot device:
• You must have the correct version of the product dependent code (PDC) installed. See the HP A7143A
RAID160 SA Release Notes for information on the PDC versions needed for each of the supported HP-UX
systems. If you do not have the correct PDC version, contact your HP representative.
• The RAID160 SA controller can only be connected to external disks. The internal SCSI connections cannot
be used.
• You must have RAID160 SA controller firmware version 3.32 or later installed.
• HP strongly recommends having an alternate boot device available (for example, a disk that is not
controlled by the RAID160 SA controller).
Installing HP-UX on a Logical Drive
To set up a RAID160 SA controller as a boot device, you must install HP-UX on one of the controller’s logical
drives. Follow this procedure:
Step 1. Start Ignite-UX from the HP-UX 11i version 1 Core OS Install and Recovery Media for September
2003. The Ignite-UX “Welcome” screen displays: