Dynamic lpar – IBM I5/OS User Manual

Page 30

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Dynamic LPAR

What can be changed dynamically !

Processors

Within established minimum and maximum

Configuration maintained in the partition profile

Changes to minimum or maximum requires partition deactivation an reactivation

Granularity of moves

Dedicated processors : 1 processor

Shared processors : 0.01 processing unit (PU) per virtual processor !

Virtual processors : 1 virtual processor

A processor move implies :

Deallocation of processor or processor time

Clear caches and registers

Allocation of processor or processor time

Nearly immediate !

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i

Series.

my

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Dynamic LPAR

What can be changed dynamically !

Memory

Within established minimum and maximum

Configuration maintained in the partition profile

Changes to minimum or maximum requires partition deactivation an reactivation

Granularity of moves

The size of a Logical Memory Block (LMB) : 16 Megabytes

In the future, those Moves

A memory move implies :

Deallocation of memory

From the *BASE pool

Memory pages must be written to disk before deallocation

Clear of memory

Allocation of memory to the new partition

To the *BASE pool

Time required !

Up to 5 minutes !

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I5