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5.5.7 Monitoring with PLM
The Partition Load Manager (PLM) can be used in either monitoring or managing
mode. In both modes, PLM provides summary information of the partitions that it
is managing. The PLM command for monitoring partition state is xlpstat; an
example of its output is shown in Example 5-46. The syntax of the command is:
xlpstat [ -r ] { -p | -f } filename [ interval ] [ count ]
The common form is shown in Example 5-46; the -p switch specifies that the list
of managed partitions will be retrieved from the given policy file; you usually use
the policy file used when starting the PLM server. Alternatively you can provide a
list of managed partitions in a text file, one partition per line, and use the -f flag to
specify this file. The xlpstat command will query the status of the listed
partitions. The output of this command does not distinguish between those
partitions actively managed by PLM and those that are not.
The -r switch prints the output in raw mode, which is easier to parse by scripting
languages.
Example 5-46 xlpstat command
# xlpstat -p 2_groups
CPU
MEM
------------------------ ------------------
STAT TYP CUR PCT LOAD CUR PCT PGSTL HOST
group2:
up S 0.5 4.00 0.10 512 75.17 0 plmserver
up S 0.50 85.45 0.44 512 99.17 129 vio_client2
group1:
up D 1.00 95.09 0.19 512 99.23 129 app_server
up D 1.00 0.39 0.09 512 74.73 0 db_server
The display shows the state of each managed partition on a separate line; the
partitions are grouped into PLM groups. In the above example, there are two
groups.
The STAT column indicates whether the partition is up or down. In the above
example, all partitions are up.
The TYP column shows whether the partition uses shared processor (S),
dedicated processors (D), or if xlpstat cannot query the partition and the state is
unknown (this column is shown as U; this is usually a sign of connection
problems). In Example 5-46, the partitions in group 2 are shared and those in
group 1 are dedicated.
348 <strong>Advanced</strong> <strong>POWER</strong> <strong>Virtualization</strong> on IBM System p5