Loadleveler; Xcat - IBM Power Systems 775 Manual

Component
TEAL

3.5.1 LoadLeveler

LoadLeveler uses file-based or database-based configuration. To determine which
configuration is used, check the contents of the /etc/LoadL.cfg file.
For a file-based configuration, the value in the keyword LoadLConfig specifies the location of
the global configuration file. We view the values in this file and the files that are specified in
LOCAL_CONFIG and ADMIN_FILE keywords to see the configuration values.
For a database-based configuration, the value in the keyword LoadLDB specifies the
database that contains the configuration tables. We use the llconfig command or the
configuration editor to view the configuration values. When a database-based configuration is
used, /etc/LoadL.cfg file on compute nodes contains the keyword LoadLConfigHosts, which
indicates the nodes that include database access and are used to serve the configuration to
this compute node. For more information, see Table 3-1 on page 158.
3.5.2 GPFS
We list the GPFS cluster configurations by using the GPFS commands that are shown in
Table 3-9 on page 232. By using these commands, it is possible to collect data for support
(gpfs.snap) and list the backups of GPFS configuration (mmlssnapshot), and license
information (mmlslicense). For more information, see Table 3-1 on page 158.

3.5.3 xCAT

The xCAT internal database for an IBM Power Systems 775 cluster uses IBM DB2, which
features commands that list and edit the configuration of the database. The more common
commands are listed in Table 3-9 on page 232 (xCAT row). For more information, see
Table 3-1 on page 158.
Examples and details are provided for the following commands:
lsdef
lsxcatd
234
IBM Power Systems 775 for AIX and Linux HPC Solution
Command (AIX/Linux)
cat /etc/teal/*.conf
(gpfs.conf)
(isnm.conf)
(ll.conf)
(pnsd.conf)
(sfp.conf)
(teal.conf)
AIX:
- /var/lock/teal.pid
- /var/lock/teal_ll.pid
Linux:
- /var/locks/teal.pid
- /var/locks/teal_ll.pid
Description
Configuration files for TEAL subsystem and
connectors.
Lock files for TEAL daemon and LoadLeveler
connector, on AIX and Linux.