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

Assignments
You assign memory to a virtual partition:
• by size
This uses the nPartition’s ILM.
Within the available nPartition’s ILM, you can also:
• specify an address range to use
This does not increase the amount of memory assigned to the virtual partition. The address
range is a specific subset of the existing ILM amount assigned to the virtual partition. Therefore,
the total amount of memory specified by ILM addresses cannot exceed the amount of ILM
assigned to the virtual partition.
NOTE: The virtual partition must be in the down state to add or delete memory resources.
Memory: Assigning by Size (ILM)
Assigning memory by specifying only size uses ILM memory. ILM memory is the only type of memory
used in vPars A.03.xx and earlier. vPars A.04.xx and later can use either ILM or CLM memory.
Syntax
The basic syntax for adding or deleting ILM resources assigned to a virtual partition is:
-[a|d] mem::size
where:
a is adding
d is deleting
size is the quantity of ILM in MBs
Examples
• To create the virtual partition winona2 with 1024 MB of ILM:
winona1# vparcreate -p winona2 -a mem::1024
• To add 1024 MB of ILM to an existing partition winona2:
winona1# vparmodify -p winona2 -a mem::1024
• To decrease the amount of ILM assigned to partition winona2 by 1024 MB:
winona1# vparmodify -p winona2 -d mem::1024
Memory: Specifying Address Range
Within the already allocated memory sizes, you can specify the memory address ranges using the
mem:::base:range syntax. However, this is not recommended unless you are familiar with using
memory addresses. You should also be familiar with the requirement that all HP-UX kernels fit within
2 GB of memory, as described in “2 GB Restriction” (page 237).
For usage information, see the vparmodify(1M) manpage. You should select your base:range after
consulting vparstatus -A to determine which ranges are available.
236 CPU, Memory, and I/O Resources (A.03.xx)