Advanced POWER Virtualization on IBM System p5 - Previous ...

In this example, the memory delta is set to 256 MB, so PLM will try to add
(and remove) memory in 256 MB chunks to a partition. The notify count for
both CPU and memory has been reduced from the default of six to two. The
CPU load average high threshold has been reduced to 0.8, but the low
threshold has been left at its default value of 0.4. The virtual processor
thresholds are not available, as this partition group is for dedicated processor
partitions. The memory high utilization threshold has been decreased to 0.8
and the page-steal high threshold is set at 4,000 page-steals per second.
When you have set up your policy, click OK.
6. Add the second partition to the group using the same procedure starting from
step 3 on page 408.
7. With the partition groups defined, we can now restart the PLM server as
described in step 11 on page 405 of the first example on page 405.
6.2.7 Partition Load Manager command line interface
PLM has two commands to control and monitor its operation through scripts:
xlplm
Controls and checks PLM.
xlpstat
Shows logical partition load statistics.
The xlpstat command is discussed in 5.5.7, “Monitoring with PLM” on page 348.
There are six forms of the xlplm command, depending on the operation to be
performed. Possible operations are:
► Start a PLM server (-S).
► Stop a PLM server (-K).
► Modify a PLM server (-M).
► Reserve or release resources in or from a PLM group (-R).
► Query PLM status (-Q or -T).
► Verify the syntax and structure of a PLM policy file (-C).
Start a PLM server
The syntax of the xlplm command to start a PLM server is:
xlplm -S -p policy_file -l log_file [-o operational_mode]
[plm_instance]
Chapter 6. Partition Load Manager 411