Technical data

Boot and Reset Overview for nPartitions
Boot Process for nPartitions, Cells, and HP-UX
HP System Partitions Guide: Administration for nPartitions—rp7410
EMSP—[e-mail]
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5. Boot-Is-Blocked (BIB) or Partition Rendezvous
Each cell either will remain at a boot-is-blocked state (spins at BIB)
or will rendezvous with any other available cells in the partition.
Cells that remain at BIB are inactive, and cells that rendezvous into
the partition are active.
• A cell remains at boot-is-blocked (and thus is inactive) in any of
the following cases:
— The cell has a “n” use-on-next-boot setting.
— The cell boots too late to participate in partition rendezvous.
— The cell’s partition has been reset to a ready for reconfig state.
In this case, all of the partition’s cells remain at
boot-is-blocked.
— The cell fails self-tests that cause the cell to not be usable in
the partition.
• Partition rendezvous of all cells occurs in the following manner:
— Partition rendezvous begins when the first of the partition’s
cells has completed self-tests and I/O discovery.
— The partition is allowed up to ten minutes for all cells with a
“y” use-on-next-boot setting to participate in partition
rendezvous.
— Once all assigned cells with a “y” use-on-next-boot setting
have entered the rendezvous stage, partition rendezvous
can complete.
All cells participating in rendezvous are active cells whose
resources (processors, memory, I/O) are used by the
partition.
— If any cells with a “y” use-on-next-boot setting do not report
to rendezvous, then ten minutes after rendezvous began the
cells that have not reported become inactive cells, and all
other reporting cells complete rendezvous and are active.
The inactive cells’ resources are not available to be used by
the partition, although the cells still are assigned to the
partition.
HP Restricted / DRAFT
DRAFT NOV 2001