Configuring and Migrating Memory on vPars

21
Memory Usage on vpar2
The vparstatus output below shows the portion of the total memory that is floating memory on
vpar2. The GlancePlus Memory Report confirms that partition has just 13 MB of free memory and that
the kernel is writing contents of the pages to disk (Paged Out is 12760 KB) to free up memory for
applications.
vpar2# vparstatus -v -p vpar2
[Memory Details]
......
ILM Total (MB): 3072 (Floating 1024)
......
vpar2# gpm -rpt MemoryReport &
Deletion of Memory from vpar1
1 GB of floating memory is deleted from vpar1 using vparmodify. The output of vparstatus shows
the PENDING state followed by the PASS state of the memory deletion operation with sequence
identifier 1. Once completed, the output of vparstatus shows that the partition has 2 GB of base
memory and no floating memory. The GlancePlus Memory Report below confirms the reduction in free
memory to 178 MB as a result of the memory online delete operation. The remaining memory is
enough to satisfy the current load and the system has not reached the stage requiring paging (Paged
Out is still zero). The EVM logs show the detailed progress of the memory online delete operation to
delete 1 GB of memory starting at the physical address 0x150000000. Finally, the vparstatus
output shows that the monitor now has 1 GB of memory available that can be added as base or
floating memory to other partitions.
vpar1# vparmodify -p vpar1 -d mem::1024:f
vpar1# vparstatus -v -p vpar1
[Memory Details]
......
ILM Total (MB): 3072 (Floating 1024) (migration pending)
......
[OL* Details]
Sequence ID: 1