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2. Select Boot Devices
Enables you to set the boot list.
3. Multiboot Startup
Toggles the multiboot startup flag, which controls whether the multiboot menu is invoked
automatically on startup.
2.12.9 Additional boot options
Instead of booting from the preferred boot device, or from any other internal disks, there are a
number of other possibilities:
DVD-ROM, DVD-RAM
Internal or external tape drives
SCSI disk, and Virtual SCSI disk The more common method of booting the system is to
SAN boot
LAN boot
2.12.10 Security
The p5-550 system allows you to set two different types of passwords to limit the access to
these systems. These are defined in the ASMI menus. This password is usually used by the
system administrator. The
functions and is usually available to all users who are allowed to power on the server,
especially remotely.
2.13 Operating system requirements
All new POWER5 servers are capable of running IBM AIX 5L for POWER and support
appropriate versions of Linux. AIX 5L has been specifically developed and enhanced to
exploit and support the extensive RAS features on IBM Sserver pSeries systems.
These devices can be used to boot the system, or a
logical partition (if the resource is available to the specific
partition), so that a system can be loaded, system
maintenance performed, or stand-alone diagnostics
performed.
The media bay tape drive or any externally attached tape
drive can be used to boot the system, or a logical
partition (if the resource is available to the specific
partition) using mksysb, for example.
use a disk situated in one of the hot-swap bays in the
front of the machine. However, any external
SCSI-attached disk could be used if required. As
described in previous sections, Virtual SCSI devices are
also available to a logical partition.
It is possible to boot the p5-550 system from a SAN
using a 2 GB Fibre Channel Adapter (FC 6239), or it is
possible to boot one partition using the dedicated 2 GB
Fibre Channel Adapter or the Virtual SCSI device related
to this adapter. The IBM 2105 Enterprise Storage Server
(ESS) is an example of a SAN-attached device that can
provide a boot medium.
Network boot and NIM installs can be used if required.
Logical partitions can use both a dedicated Ethernet
adapter or Virtual Ethernet to accomplish that.
general ID password
provides limited access to the system
Chapter 2. Architecture and technical overview
43
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