Allocate and reallocate CPU resources needed to utilize full available network adapter bandwidth capacity for logical partition migration

Patent metadata

Field	Value
Publication number	US-9110779-B2
Application number	US-201313767165-A
Country	US
Kind code	B2
Filing date	Feb 14, 2013
Priority date	Jun 27, 2012
Publication date	Aug 18, 2015
Grant date	Aug 18, 2015

Abstract

Automated techniques ensure that system central processing unit (“CPU”) power is not a bottleneck when migrating logical partitions from one system to another system or systems (e.g., in the event of a system evacuation). CPU resources needed to fully drive available bandwidth during the migration are computed. CPU resources of the system are then adjusted for the migration, which may comprise scaling down the CPU resources that are guaranteed for the executing partitions and/or adjusting relative partition variable weights to limit the amount of excess capacity that can be allocated to a partition.

First claim

The invention claimed is:

1. A computer-implemented method for migration of logical partitions in a computing system in which the logical partitions share computing resources, comprising:
determining available bandwidth of network adapters in the logical partitions that will perform the migration;
computing central processing unit (“CPU”) capacity needed for fully using the determined available bandwidth for the migration;
determining an amount of unallocated CPU capacity in a…

Assignees

• IBM

Inventors

• Ashok Rohith K
• Mena Iii Agustin
• Nguyen Thuy B
• Olszewski Bret R

Classifications

• G06F9/5077 Primary

  Physics · mapped topic

• G06F12/02 Primary

  Physics · mapped topic