Managing CPU resources for high availability micro-partitions

摘要

A primary processing unit entitlement is determined for a logical partition. A smaller secondary processing unit entitlement is also determined. A partition manager allocates primary processing units to the logical partition from a primary shared processor pool, and the logical partition is activated. The secondary processing units are reserved for the logical partition from a secondary shared processor pool, and the logical partition can be relocated to the secondary shared processor pool in response to a condition such as a hardware failure. The logical partition can continue to process its workload with the fewer processor resources, and can be restored to the primary processing unit entitlement.

主权项

1. A system for managing a logical partition, the system comprising:
a primary shared processor pool supplying a quantity of processing units; and a partition manager operable to:
determine a primary processing unit entitlement for a logical partition;allocate a first quantity of processing units from the primary shared processor pool to the logical partition, the first quantity of processing units equal to the primary processing unit entitlement;activate the logical partition on the allocated first quantity of processing units;determine a secondary processing unit entitlement for the logical partition, the secondary processing unit entitlement less than the primary processing unit entitlement; andreserve a second quantity of processing units from a secondary shared processor pool for the logical partition, the second quantity of processing units equal to the secondary processing unit entitlement.