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HP-UX Virtual Partitions Administrator’s Guide > Chapter 7 CPU, Memory, and I/O Resources (A.04.xx)

Memory: Assigning by Size (CLM)

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Before assigning CLM, see the section on configuring CLM: “Configuring CLM for an nPartition”. Once CLM is configured, you can assign an amount of CLM to a virtual partition,

The syntax to assign an amount of CLM is:

-a|d cell:cell_ID:mem::size

where:

-a

is adding

-d

is deleting

cell_ID

is the cell number

size

is the quantity of memory in MBs

Example

  • To add 1024 MB of memory from cell 6 (at least 1024 MB must already be configured as CLM) to the existing partition keira2:

    keira1# vparmodify -p keira2 -a cell:6:mem::1024

  • You can set both ILM and CLM memory on the same partition. To assign 1024 MB of available CLM and 1024 MB of available ILM to keira2:

    keira1# vparmodify -p keira2 -a cell:6:mem::1024 -a mem::1024

NOTE: Assigning ILM or CLM memory by size only reserves the amount of physical memory the virtual partition gets. The exact physical ranges of memory the virtual partition gets is decided by the vPars Monitor when the virtual partition boots. The vPars Monitor will attempt to pick the memory ranges such that the sum of the ranges add up to the amount of ILM and CLM reserved for the partition. However, due to memory fragmentation, which occurs due to memory already taken by the vPars Monitor, firmware, or bad pages, the sum of the ranges picked by the vPars Monitor may be slightly less than or more than the specified amount reserved for the partition.
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