Configuring and Migrating Memory on vPars

At each step, appropriate commands are executed to look at the memory usage and monitor the

progress of the operation. Only the relevant output from the command is shown.

Experimental Setup

The setup used for this experiment is a system with 12 GB ILM and three partitions: vpar1 with 2 GB

of base memory and 1 GB of floating memory, vpar2 with 2 GB of base memory and 1 GB of

floating memory, and vpar3 with 3 GB of base memory and remaining memory assigned as floating

memory. The following shows the output of the vparstatus command with the memory distribution.

vpar1# vparstatus

[Virtual Partition]

Memory (MB)

ILM CLM

# User # User

Virtual Partition Name Ranges/MB Total MB Ranges/MB Total MB

============================== ====================== ======================

vpar1 0/ 0 3072 0/ 0 0

vpar2 0/ 0 3072 0/ 0 0

vpar3 0/ 0 5490 0/ 0 0

Memory Usage on vpar1

The vparstatus output below shows the portion of the total memory that is floating memory on

vpar1. The GlancePlus Memory Report Graph confirms that a little over 1.1 GB of memory is not used

by the partition and that the kernel is not paging the memory to disk (Paged Out is 0).

vpar1# vparstatus -v -p vpar1

[Memory Details]

.....

ILM Total (MB): 3072 (Floating 1024)

.....

vpar1# gpm -rpt MemoryReport &