Computer program product for continuous destaging

专利名称：Computer program product for continuous

destaging of changed data from a sharedcache in a multisystem shared diskenvironment wherein castout interest isestablished in a hierarchical fashion

发明人：Gautam Bhargava,Inderpal Singh

Narang,James Z. Teng

申请号：US08/454846申请日：19950531公开号：US05751992A公开日：19980512

摘要：A computer program product for a system and method for destaging changeddata from a shared cache castout in a shared data environment distributes castoutownership for a dataset among a plurality of systems having an update interest in thedataset. One system is designated as having castout ownership of the dataset in aprimary state. All other systems having an update interest in the dataset hold castoutownership for the dataset in a backup state. When the primary owner relinquishesownership, primary ownership is passed to one of the backup systems. A structurecastout owner for the entire cache assumes the responsibility of castout out changeddata for a dataset for which the primary castout owner has had a failure.

申请人：INTERNATIONAL BUSINESS MACHINES CORPORATION

代理人：Marilyn SmithSterne, Kessler, Goldstein & Fox PL Dawkins, Esq.

更多信息请下载全文后查看