发明名称 System and program product to allocate and reallocate CPU resources needed to utilize full available network adapter bandwidth capacity for logical partition migration
摘要 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.
申请公布号 US9158668(B2) 申请公布日期 2015.10.13
申请号 US201213535259 申请日期 2012.06.27
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 Ashok Rohith K.;Mena, III Agustin;Nguyen Thuy B.;Olszewski Bret R.
分类号 G06F9/46;G06F15/173;G06F12/02;G06F9/50 主分类号 G06F9/46
代理机构 代理人 Doubet Marcia L.
主权项 1. A computer-implemented system for migration of logical partitions in a computing system in which the logical partitions share computing resources, comprising: a computer comprising a processor; and instructions which are executable, using the processor, to implement functions 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 shared processor pool, the shared processor pool representing processors that are shared by the logical partitions;responsive to determining that sufficient unallocated CPU capacity is available to meet the computed CPU capacity needed, allocating a first portion of the unallocated CPU capacity among the logical partitions that will perform the migration to thereby grow the CPU capacity of the logical partitions that will perform the migration and commencing the migration; andresponsive to determining that sufficient unallocated CPU capacity is not available to meet the computed CPU capacity needed, performing: allocating the unallocated CPU capacity among the logical partitions that will perform the migration;reallocating, among the logical partitions that will perform the migration, a second portion of CPU capacity allocated to the logical partitions that will not perform the migration; andcommencing the migration.
地址 Armonk NY US
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