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    Data compression algorithm selection and tiering
    1.
    发明授权
    Data compression algorithm selection and tiering 有权
    数据压缩算法选择和分层

    公开(公告)号：US08688654B2

    公开(公告)日：2014-04-01

    申请号：US12574470

    申请日：2009-10-06

    申请人： Michael Robert Groseclose, Jr. ,  Larry Juarez ,  David Montogmery ,  Jason Lee Peipelman ,  Joshua Marshall Rhoades

    发明人： Michael Robert Groseclose, Jr. ,  Larry Juarez ,  David Montogmery ,  Jason Lee Peipelman ,  Joshua Marshall Rhoades

    IPC分类号： G06F7/76 ,  G06F7/06

    CPC分类号： G06F17/30306 ,  G06F3/0608 ,  G06F3/0638 ,  G06F3/067 ,  G06F17/30501 ,  H03M7/30

    摘要： A data storage subsystem having a plurality of data compression engines configured to compress data, each having a different compression algorithm. A data handling system is configured to select at least one sample of data; operate a plurality of the data compression engines to compress the selected sample(s); determine the compression ratios of the operated data compression engines with respect to the selected sample(s); and select the data compression engine having the greatest compression ratio with respect to the selected sample(s), to compress the data. Further, the data compression engines may be in tiers from low to high in accordance with expected latency to compress data and to uncompress compressed data; and a data compression engine is selected from a tier that is inverse to the present rate of access.

    摘要翻译： 数据存储子系统具有多个数据压缩引擎，其被配置为压缩数据，每个具有不同的压缩算法。 数据处理系统被配置为选择至少一个数据样本; 操作多个数据压缩引擎来压缩所选择的样本; 确定所操作的数据压缩引擎相对于所选择的样本的压缩比; 并选择相对于所选择的样本具有最大压缩比的数据压缩引擎来压缩数据。 此外，数据压缩引擎可以根据预期的等待时间从低到高分级来压缩数据并解压缩压缩数据; 并且从与当前访问速率相反的层中选择数据压缩引擎。

    DATA MIGRATION METHODOLOGY FOR USE WITH ARRAYS OF POWERED-DOWN STORAGE DEVICES
    8.
    发明申请
    DATA MIGRATION METHODOLOGY FOR USE WITH ARRAYS OF POWERED-DOWN STORAGE DEVICES 失效
    数据移动方法与使用下放存储设备的阵列一起使用

    公开(公告)号：US20110191558A1

    公开(公告)日：2011-08-04

    申请号：US12698557

    申请日：2010-02-02

    申请人： Dale H. Anderson ,  Philip M. Doatmas ,  Michael R. Groseclose ,  Paul A. Jennas ,  Larry Juarez ,  Brian S. McCain ,  David Montgomery ,  Jason L. Peipelman ,  Joshua M. Rhoades ,  Todd C. Sorenson

    发明人： Dale H. Anderson ,  Philip M. Doatmas ,  Michael R. Groseclose ,  Paul A. Jennas ,  Larry Juarez ,  Brian S. McCain ,  David Montgomery ,  Jason L. Peipelman ,  Joshua M. Rhoades ,  Todd C. Sorenson

    IPC分类号： G06F12/16 ,  G06F12/00

    CPC分类号： G06F12/00 ,  G06F12/16

    摘要： A method for managing extents in a data storage system includes monitoring usage statistics for an extent residing on one or more powered-up storage devices. In the event the extent has not been accessed for specified period of time (as determined from the usage statistics), the method automatically compresses the extent and migrates the extent to an intermediate repository. Once the amount of data in the intermediate repository reaches a specified level, the method migrates the extent from the intermediate repository to one or more normally powered-down storage devices. If I/O is received for the extent while it resides in the normally powered-down storage devices or the intermediate repository, the method automatically migrates the extent from the normally powered-down storage devices or the intermediate repository to the normally powered-up storage devices. A corresponding apparatus and computer program product are also disclosed.

    摘要翻译： 用于管理数据存储系统中的盘区的方法包括监视驻留在一个或多个加电存储装置上的盘区的使用统计。 如果在指定的时间段内（从使用统计信息确定）没有访问该范围，该方法将自动压缩该范围并将范围迁移到中间存储库。 一旦中间存储库中的数据量达到指定的级别，该方法会将程序段从中间存储库迁移到一个或多个正常关闭的存储设备。 如果在驻留在通常断电的存储设备或中间存储库中的范围内接收到I / O，则该方法自动将从正常关闭的存储设备或中间存储库迁移到通常供电的存储 设备。 还公开了相应的装置和计算机程序产品。

    WORKLOAD-DISTRIBUTING DATA REPLICATION SYSTEM
    9.
    发明申请
    WORKLOAD-DISTRIBUTING DATA REPLICATION SYSTEM 失效
    工作分配数据复制系统

    公开(公告)号：US20110093862A1

    公开(公告)日：2011-04-21

    申请号：US12582502

    申请日：2009-10-20

    申请人： Philip M. Doatmas ,  Michael R. Groseclose ,  Paul A. Jennas ,  Larry Juarez ,  David Montgomery ,  Jason L. Peipelman ,  Joshua M. Rhoades ,  Todd C. Sorenson

    发明人： Philip M. Doatmas ,  Michael R. Groseclose ,  Paul A. Jennas ,  Larry Juarez ,  David Montgomery ,  Jason L. Peipelman ,  Joshua M. Rhoades ,  Todd C. Sorenson

    IPC分类号： G06F9/46

    CPC分类号： G06F17/30575 ,  G06F3/0617 ,  G06F3/065 ,  G06F3/0689 ,  G06F11/2066 ,  G06F11/2069

    摘要： A method for more effectively distributing the I/O workload in a data replication system is disclosed herein. In selected embodiments, such a method may include generating an I/O request and identifying a storage resource group associated with the I/O request. In the event the I/O request is associated with a first storage resource group, the I/O request may be directed to a first storage device and a copy of the I/O request may be mirrored from the first storage device to a second storage device. Alternatively, in the event the I/O request is associated with a second storage resource group, the I/O request may be directed to a second storage device and a copy of the I/O request may be mirrored from the second storage device to the first storage device. A corresponding system, apparatus, and computer program product are also disclosed and claimed herein.

    摘要翻译： 本文公开了一种在数据复制系统中更有效地分布I / O工作负载的方法。 在所选择的实施例中，这种方法可以包括生成I / O请求并且识别与I / O请求相关联的存储资源组。 在I / O请求与第一存储资源组相关联的情况下，I / O请求可以被定向到第一存储设备，并且I / O请求的副本可以从第一存储设备镜像到第二存储设备 储存设备。 或者，在I / O请求与第二存储资源组相关联的情况下，I / O请求可以被定向到第二存储设备，并且I / O请求的副本可以从第二存储设备镜像到 第一存储设备。 本文还公开并要求对应的系统，装置和计算机程序产品。