公开(公告)号：US20140359226A1

公开(公告)日：2014-12-04

申请号：US13906291

申请日：2013-05-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Weimin Pan

IPC: G06F12/08 ,  G06F12/12

CPC classification number: G06F12/0873 ,  G06F2212/1024 ,  G06F2212/601

Abstract: A technique for allocating a write cache allowed data size of a write cache from a plurality of write caches to each of a plurality of storage volumes, calculating a write cache utilization of the write cache for each of the respective storage volumes, wherein the write cache utilization is based on a write cache dirty data size of the write cache allocated to the respective storage volume divided by the write cache allowed data size of the write cache allocated to the respective storage volume, and adjusting the write cache allowed data size of the write cache allocated to storage volumes based on the write cache utilaztion of the write cache of the storage volumes.

Abstract translation: 一种用于分配写高速缓存的技术，允许从多个写高速缓存到多个存储卷中的每一个的写高速缓存的数据大小，计算每个相应存储卷的写高速缓存的写高速缓存利用率，其中写缓存 利用率基于分配给相应存储卷的写缓存的写缓存脏数据大小除以分配给相应存储卷的写缓存的写高速缓存允许数据大小，并且调整写高速缓存允许写数据大小 基于存储卷的写入高速缓存的写入高速缓存使用的分配给存储卷的缓存。

公开(公告)号：US20140082249A1

公开(公告)日：2014-03-20

申请号：US13622942

申请日：2012-09-19

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY

Inventor： Weimin Pan ,  Mark Lyndon Oelke

IPC: G06F13/16

CPC classification number: G06F12/0888 ,  G06F11/1076 ,  G06F11/3419 ,  G06F11/3433 ,  G06F11/3485 ,  G06F11/349 ,  G06F12/0868 ,  G06F2201/81 ,  G06F2201/885 ,  G06F2212/1024

Abstract: Embodiments herein relate to sending a request to a storage device based on a moving average. A threshold is determined based on a storage device type and a bandwidth of a cache bus connecting a cache to a controller. The moving average of throughput is measured between the storage device and a host. The request of the host to access the storage device is sent directly to the storage device, if the moving average is equal to the threshold.

Abstract translation: 本文的实施例涉及基于移动平均线向存储设备发送请求。 基于将缓存连接到控制器的高速缓存总线的存储设备类型和带宽来确定阈值。 在存储设备和主机之间测量吞吐量的移动平均值。 如果移动平均值等于阈值，则主机访问存储设备的请求被直接发送到存储设备。