IBM I5/OS Server User Manual


 
iSeries. mySeries.
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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iSeries. mySeries.
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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