HP Superdome 2 Partitioning Administrator Guide

an nPartition that has been powered on, or if the user has set the use_on_next_boot attribute
of the blade to be false.
I/O Enclosures and I/O Bays
HP Superdome 2 I/O Expansion Enclosures (IOX enclosures) contain two bays, each of which
may be independently assigned to nPartitions. I/O bays are not directly attached to blades on
HP Superdome 2 servers - the I/O bays in an IOX have to be assigned to specific partitions, thus
allowing more flexibile I/O assignments. Therefore, in addition to blades, every nPartition can
have I/O explicitly assigned to it. The resource path format for specifying an I/O bay is
IO_enclosure#/iobay#. I/O bays are assigned using the -a
io:enclosure#/iobay#:[use_on_next_boot] option of the parcreate and parmodify
commands.
NOTE: There are some I/O slots on the blade itself. These are two dual-port LAN on Motherboard
modules (LoMs), 3 mezzanine card slots, and the blade's iLO port. The mezzanine slots are
assigned the slot numbers 1, 2, and 3. The LoMs are assigned the slot numbers 4 and 5. The iLO
is assigned slot number 6.The mezzanine cards are not supported at the first release. If the I/O
on the blade is not sufficient for the nPartition, additional I/O may be assigned by using the IOX
expansion enclosure.
Finding the Resource Path of I/O
The resource path of your blade-based I/O components and I/O bay based I/O slots can be found
through the OA CLI or through EFI commands. Using the HP Superdome 2 OA, the command
parstatus –c {enclosure#/blade#} –V. For example, parstatus -c1/2 -V command
reports the path of the LoMs on blade 2 in enclosure 1. Using EFI, the info io command returns
the results of all resources paths to all I/O. Following is a sample output of the info io command
for a dual ported LoM (enclosure 1, blade 2, I/O slot 5)
1/2/5 04/80 00/00 14E4/1650 103C/7105/00 Network Controller - Ethernet control
1/2/5 04/80 00/01 14E4/1650 103C/7105/00 Network Controller - Ethernet control
For the same LoMs the resource path listing using the parstatus -c1/2 is shown below. LAN
on Motherboard NICs are numbered 4 and 5, as shown below:
RP Path Slot Slot Type Status
=========== ========= ========== =======
1/2/0/0/0 1/2/4 Lan OK
1/2/0/0/2 1/2/5 Lan OK
nPartition Properties
This section describes the commonly used nPartition properties you work with when performing
nPartition administration tasks.
The following nPartitions details are covered here:
• “Partition Names”
• “Partition Numbers”
• “Hyperthreading”
• “Socket Local Memory”
Partition Names
Specifies the name of the nPartition. The parcreate —P name command is used to create an
nPartition with a name associated to it. An nPartition name must have at least one of the following
non-numeric characters: a-z, A-Z, dash (-), under-score (_), or period (.). No other non-numeric
character is allowed in an nPartition name. An nPartition name with the same format as the
default name can only be specified if the specified name matches the nPar number. If name is
22 Getting Started with nPartitions