公开(公告)号：JP2012113704A

公开(公告)日：2012-06-14

申请号：JP2011245048

申请日：2011-11-09

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： RAKESH MOHAN GUPTA ,  MICHAEL THOMAS BENAS ,  HSU YU-CHENG ,  ALFRED EMILIO SANCHEZ

IPC: G06F3/06

CPC classification number: G06F3/065 ,  G06F11/1076 ,  G06F2211/1014

Abstract: PROBLEM TO BE SOLVED: To provide a method for archiving and retrieving data of a storage system based upon a flash copy and data compression.SOLUTION: In a source volume, a flash copy of data is generated and the data in the flash copy is compressed. Each track of data is compressed into a data page set, and compressed data pages are stored in a target volume. A data extent is allocated to the target volume from a pool of compressed data extents. After each stride worth of data is compressed and stored in the target volume, the data is destaged to avoid a destage penalty. When the archived data is needed, data from the target volume is decompressed to restore each data block. The data is compressed and uncompressed using an LZW (Lempel-Ziv-Welch) process.

Abstract translation: 要解决的问题：提供一种基于闪存复制和数据压缩来归档和检索存储系统的数据的方法。

解决方案：在源卷中，生成数据的闪存副本，并且Flash副本中的数据被压缩。 每个数据轨迹被压缩成一个数据页集合，压缩的数据页存储在目标卷中。 数据范围从压缩数据盘区池分配给目标卷。 在每一步数据的数据被压缩并存储在目标卷中之后，数据被排除以避免出现游离罚款。 当需要归档数据时，解压缩来自目标卷的数据以恢复每个数据块。 使用LZW（Lempel-Ziv-Welch）过程对数据进行压缩和未压缩。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：GB2514982B

公开(公告)日：2019-11-20

申请号：GB201417800

申请日：2013-03-04

Applicant: IBM

Inventor： NICOLAS MARC CLAYTON ,  LISA JOAN GUNDY ,  JOHN RICHARD PAVEZA ,  BETH ANN PETERSON ,  ALFRED EMILIO SANCHEZ ,  DAVID MICHAEL SHACKELFORD ,  WARREN KEITH STANLEY ,  JOHN GLENN THOMPSON

IPC: G06F11/20 ,  G06F11/14 ,  G06F11/30

公开(公告)号：GB2490412B

公开(公告)日：2017-12-13

申请号：GB201207226

申请日：2011-01-07

Applicant: IBM

Inventor： ROMAN PLETKA ,  EVANGELOS ELEFTHERIOU ,  ROBERT HAAS ,  XIAO-YU HU ,  YU-CHENG HSU ,  LOKESH MOHAN GUPTA ,  JOSEPH SMITH HYDE II ,  MICHAEL THOMAS BENHASE ,  ALFRED EMILIO SANCHEZ ,  KEVIN JOHN ASH

IPC: G06F12/0866

Abstract: An I/O enclosure module is provided with one or more I/O enclosures having a plurality of slots for receiving electronic devices. A host adapter is connected a first slot of the I/O enclosure module and is configured to connect a host to the I/O enclosure. A device adapter is connected to a second slot of the I/O enclosure module and is configured to connect a storage device to the I/O enclosure module. A flash cache is connected to a third slot of the I/O enclosure module and includes a flash-based memory configured to cache data associated with data requests handled through the I/O enclosure module. A primary processor complex manages data requests handled through the I/O enclosure module by communicating with the host adapter, device adapter, and flash cache to manage to the data requests.