HP XC System Software Installation Guide Version 3.2
NOTE:
Follow this procedure before you run the discover command if you want to locate the
console port of a non-blade head node on the administration network and not on the external
network:
1. Set the IP address for the head node console port to a static IP address that is not
currently in use by the HP XC system. Typically, this address can be 172.31.47.240,
which is the top end of addresses defined for the HP XC switches defined in the
/opt/hptc/config/base_addrV2.ini file.
2. Add the address to the top portion of the /etc/hosts file. The top portion of this file
is reserved for user customizations. Add the entry similar to the following:
172.31.47.240 cp-n0
4. Start the discovery of all network components:
# ./discover --system \
[--super] \
[--oldmp] \
[--outfile file_name] \
[--ic={AdminNet|Ethernet|Infiniband|Myrinet|Quadrics}] \
[--verbose]
Notes About the discover Command-Line Options
• The --super option is required for large-scale systems (systems with up to 1024
compute nodes) with a hardware configuration that consists of a Super Root Switch
into which multiple Root Administration Switches are connected.
• The --oldmp option is required on HP Integrity servers (such as the rx8620) if their
management processors (MP) have statically set IP addresses and are not configured
to use DHCP. The --oldmp option is no longer required if the HP Integrity server has
been upgraded with MP firmware Version 3.15 or newer.
Do not include the --oldmp option on the command line for HP ProLiant nodes because
that hardware family uses iLO and LO-100i as their console port management devices
and uses DHCP to obtain their IP addresses.
• The --outfile file_name option saves a copy of the HP XC system information
that is written to the configuration and management database. The file name you specify
must already exist on the head node. Saving this information optional, but it enables
you to use the --infile file_name option if it becomes necessary to restore the HP
XC system to the point in the installation just after the discover command was run
but before the cluster_config utility is run.
• The --ic={AdminNet|Ethernet|Infiniband|Myrinet|Quadrics} option
specifies the type of interconnect to configure. If you do not specify this option, the
discover utility configures the fastest interface it finds available in the hardware
configuration. Your entries are case sensitive.
When the interconnect is configured on the administration network, a single LAN is
used. The administration network and the interconnect share the same ports and
switches.
All other interconnect types (Myrinet, InfiniBand, and Quadrics) are discovered
automatically based on the interconnect found on the head node. You are not required
to specify these interconnects on the command line.
• The --verbose option provides useful feedback during the discovery process that
enables you to follow along. HP recommends including it on the command line.
3.6 Task 5: Run the discover Command to Discover Hardware Components 67