HP Server rp7420 nPartition Administrator's Guide, Second Edition - Page 32
Basics of nPartition Booting and Resetting, Boot Process for Cells and nPartitions, nPartition, Modify
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• Setting Core Cell Choices To set core cell choices for an nPartition use the parmodify -p# -r# -r#... command to specify up to four core cell choices in priority order for a specified nPartition (-p#, where # is the partition number). From Partition Manager Version 1.0 select the nPartition, use the nPartition→Modify nPartition action, Core Cell Choices tab. From Partition Manager Version 2.0 select the nPartition, use the nPartition→Modify nPartition action, Set Cell Options tab, and use the Core Cell Choice column to set priorities. On an HP 9000 server you can use the BCH Configuration menu COC command to set core cell choices. On an HP Integrity server you can use the EFI Shell rootcell command to set core cell choices. Also see "Setting nPartition Core Cell Choices" (page 194). • Setting nPartition Boot Paths On HP Integrity servers boot paths can be listed and configured only from the local nPartition. From HP-UX use the setboot command to configure the local nPartition boot paths, or use the parmodify -p# -b... -s... -t... command to set boot paths for a specified nPartition (-p#, where # is the partition number). On an HP 9000 server you can use the BCH Main menu PATH command to configure boot paths. On an HP Integrity server you can use the EFI Shell bcfg command to configure boot paths. Also see "Configuring Boot Paths and Options" (page 155). For more details and summaries see Table 6-1 (page 166). Basics of nPartition Booting and Resetting This section gives a brief overview of the boot process for cells and nPartitions and lists the main nPartition boot commands and tasks. For more details see Chapter 5 (page 87). Boot Process for Cells and nPartitions The nPartition boot process, on both HP 9000 servers and HP Integrity servers, includes two phases: the cell boot phase and the nPartition boot phase. 1. Cell Boot Phase of the nPartition Boot Process The cell boot phase occurs when cells are powered on or reset. The main activities that occur during the cell boot phase are power-on-self-test activities. During this phase each cell operates independently of all other cells in the complex. Cells do not necessarily proceed through this phase at the same pace, because each cell may have a different amount of hardware to test and discover, or cells might be reset or powered on at different times. The main steps that occur during the cell boot phase are: a. A cell is powered on or reset, and the cell boot-is-blocked (BIB) flag is set. BIB is a hardware flag on the cell board. When BIB is set, the cell is considered to be inactive. b. Firmware on the cell performs self-tests and discovery operations on the cell hardware components. Operations at this point include processor self-tests, memory tests, I/O 32 Getting Started with nPartitions