Managing Superdome Complexes: A Guide for HP-UX System Administrators

Booting and Resetting Superdome Partitions
Overview of Partition Booting Concepts and Issues
Chapter 5228
signal from the GSP command menu; be certain to reset the
correct partition.
• The GSP command menu’s RS (reset) command provides the method
for resetting and booting a Superdome partition’s hardware after the
partition has been shut down and halted.
You can shut down and halt a partition by using the shutdown -h or
reboot -h commands.
• Before powering off a Superdome hardware component, such as a cell
or I/O chassis, the components should either be inactive, unassigned
(not assigned to any partition), or should be assigned to a partition
that has been shut down and halted or is in a ready-for-reconfig state.
• Three boot path variables—PRI, HAA, and ALT— are supported by
each HP Superdome partition.
By convention, the PRI path is the primary boot device. The HAA
device should be a mirror of the PRI device. The ALT device typically
should be a tape or DVD-ROM device used for booting install or
recovery media.
When a partition boots, the partition attempts first to boot the PRI
device using its PRI boot action settings. If this fails, the partition can
attempt to boot the HAA device using its boot action settings. If HAA
fails to boot, the partition finally can attempt to boot the ALT device.
• You can specify boot actions for each boot path variable (PRI, HAA,
and ALT) by using the BCH configuration menu’s PF command (Path
Flag). The boot action designates what task is performed (boot, skip,
go to BCH) for the device. For details see “Configuring Boot Actions
for Partition Boot Paths” on page 275.
For specific boot procedures that address the above Superdome-specific
concerns, see “Introduction to Boot and Reset Tasks” on page 222.