Global non-volatile solid-state cache in a network storage system
    1.
    发明授权
    Global non-volatile solid-state cache in a network storage system 有权
    网络存储系统中的全局非易失性固态缓存

    公开(公告)号:US09372825B1

    公开(公告)日:2016-06-21

    申请号:US13779640

    申请日:2013-02-27

    Applicant: NetApp, Inc.

    Inventor: Shaswati Shee

    CPC classification number: G06F15/17331 H04L67/1097 H04L67/2842

    Abstract: A network storage controller uses a non-volatile solid-state memory (NVSSM) subsystem as a global cache that is shared between a number of network storage servers in a network storage system. Portions of global cache are allocated to each of the network storage servers. Allocation of portions of the global cache is controlled based on a usage pattern of the global cache by each of the network storage servers. The storage operating system determines, for example, a percentage of cache hit and/or a response time for responding to the requests from the clients by a particular network storage server with a particular allocated portion. The percentage of cache hit and response time are projected for various potential sizes of the particular portion. A size of the particular portion that provides a better percentage of cache hit and/or response time is selected, and reallocated to the particular network storage server.

    Abstract translation: 网络存储控制器使用非易失性固态存储器(NVSSM)子系统作为在网络存储系统中的多个网络存储服务器之间共享的全局缓存。 全局缓存的部分被分配给每个网络存储服务器。 基于每个网络存储服务器的全局缓存的使用模式来控制全局缓存的部分的分配。 存储操作系统例如确定具有特定分配部分的特定网络存储服务器响应来自客户端的请求的高速缓存命中的百分比和/或响应时间。 针对特定部分的各种潜在大小投影缓存命中和响应时间的百分比。 选择提供更高百分比的缓存命中和/或响应时间的特定部分的大小,并重新分配给特定的网络存储服务器。

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