Copying data from a first cluster to a second cluster to reassign storage areas from the first cluster to the second cluster
    11.
    发明授权
    Copying data from a first cluster to a second cluster to reassign storage areas from the first cluster to the second cluster 有权
    将数据从第一个集群复制到第二个集群,以将存储区域从第一个集群重新分配到第二个集群

    公开(公告)号:US07761680B2

    公开(公告)日:2010-07-20

    申请号:US11696099

    申请日:2007-04-03

    IPC分类号: G06F12/00

    摘要: Provided are a method, system, and article of manufacture for copying data from a first cluster to a second cluster to reassign storage areas from the first cluster to the second cluster. An operation is initiated to reassign storage areas from a first cluster to a second cluster, wherein the first cluster includes a first cache and a first storage unit and the second cluster includes a second cache and a second storage unit. Data in the first cache for the storage areas to reassign to the second cluster is copied to the second cache. Data in the first storage unit for storage areas remaining assigned to the first cluster is copied to the second storage unit.

    摘要翻译: 提供了用于将数据从第一集群复制到第二集群的方法,系统和制品,以将从第一集群到第二集群的存储区域重新分配。 启动操作以将存储区域从第一集群重新分配到第二集群,其中第一集群包括第一高速缓存和第一存储单元,并且第二集群包括第二高速缓存和第二存储单元。 将第一个缓存中的数据重新分配给第二个集群的存储区域复制到第二个缓存。 第一存储单元中的剩余分配给第一集群的存储区域的数据被复制到第二存储单元。

    Preservation of cache data following failover
    12.
    发明授权
    Preservation of cache data following failover 有权
    故障转移后保存缓存数据

    公开(公告)号:US07680982B2

    公开(公告)日:2010-03-16

    申请号:US11676634

    申请日:2007-02-20

    IPC分类号: G06F12/00

    摘要: In a data storage subsystem with disk storage and a pair of clusters, one set of DASD fast write data is in cache of one cluster and in non-volatile data storage of the other. In response to a failover of one of the pair of clusters to a local cluster, the local cluster converts the DASD fast write data in local cache to converted fast write data to prioritize the converted data for destaging to disk storage. In response to failure to destage, the local cluster allocates local non-volatile storage tracks and emulates a host adapter to store the converted fast write data by the local non-volatile storage, reconverting the converted fast write data of the non-volatile storage to local DASD fast write data stored in the local non-volatile storage and stored in the local cache storage.

    摘要翻译: 在具有磁盘存储和一对集群的数据存储子系统中,一组DASD快速写入数据位于一个集群的缓存中,而在另一个集群的非易失性数据存储中。 为了响应一对集群中的一个到本地集群的故障切换,本地集群将本地缓存中的DASD快速写入数据转换为转换的快速写入数据,以便将转换后的数据优先转发到磁盘存储。 为了应对未能到达的目的地,本地集群分配本地非易失性存储轨迹,并模拟主机适配器以存储由本地非易失性存储器转换的快速写入数据,将非易失性存储器的转换的快速写入数据重新转换为 本地DASD快速写入数据存储在本地非易失性存储器中并存储在本地缓存中。