HP-UX Virtual Partitions Administrator Guide (includes A.05.08) (5900-1312, March 2011)

# vparstatus -A
[Available ILM (Base /Range)]: 0x3000000/80
(bytes) (MB) 0x10000000/512
0x50000000/768
0xb8000000/1024
0x100000000/1920
0x178000000/96
[Available ILM (MB)]: <none>
[Available CLM (CellID Base /Range)]: 0 0x70080000000/256
(bytes) (MB) 0 0x700b0000000/1152
0 0x700f8000000/120
[Available CLM (CellID MB)]: 0 504
1 0
NOTE: To see how memory is used by vPars in nPartitions, see Appendix D (page 288).
vparstatus: Base and Float Memory Amounts
With vPars A.05.xx, you can assign ILM and/or CLM memory as either base or float. The verbose
(-v) output of vparstatus shows how much is float relative to the total ILM and CLM memory
that is assigned.
# vparstatus -p keira4 -v
...
[Memory Details]
ILM, user-assigned [Base /Range]:
(bytes) (MB)
ILM, monitor-assigned [Base /Range]: 0x50000000/512
(bytes) (MB) 0x4080000000/256
0x40f0000000/256 (Floating)
ILM Total (MB): 1024 (Floating 256)
ILM Granularity (MB): 256
CLM, user-assigned [CellID Base /Range]: 0 0x700b0000000/256 (Floating)
(bytes) (MB) 0 0x700c0000000/256
CLM, monitor-assigned [CellID Base /Range]: 0 0x70080000000/512
(bytes) (MB) 0 0x700a0000000/256 (Floating)
CLM (CellID MB): 0 1280 (Floating 512)
CLM Granularity (MB): 256
Memory: Converting Base Memory to Float Memory
In vPars A.04.xx and A.03.xx, all memory is base memory, meaning this memory cannot be
removed from a virtual partition while the virtual partition is up. In vPars A.05.xx, if you wish to
remove memory from a virtual partition while the virtual partition is up, you will need to have that
amount of memory added to the virtual partition as float. By default, all memory assigned to a
virtual partition is base memory, so below is the process to convert base memory to float memory.
There is no vPars command to do this automatically.
1. Decide how much memory you wish to have as dynamically migratable memory.
Note that each virtual partition requires enough base memory to load and run the kernel. See
also “Performance Note for Base versus Float Memory Amounts” (page 179) and Appendix F
(page 291) for information on a virtual partition’s base memory requirements.
For our example, let’s assume that on keira3, we wish to convert 512 MB of existing ILM base
memory to ILM float memory.
2. Because :base memory can only be removed from a partition while the partition is down, shut
down the target partition.
keira3# shutdown -hy 0
184 CPU, Memory, and I/O Resources (A.05.xx)