公开(公告)号：JP2009076075A

公开(公告)日：2009-04-09

申请号：JP2008241616

申请日：2008-09-19

Applicant: Internatl Business Mach Corp ,  Lsi 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 ,  エルエスアイ コーポレーション

Inventor： BELLUOMINI WENDY ,  BISH JOHN EDWARD ,  DAY III KENNETH ,  HAFNER JAMES ,  WEBER BRET S

IPC: G06F3/06

CPC classification number: G06F11/1076 ,  G06F2211/104 ,  G06F2211/109

Abstract: PROBLEM TO BE SOLVED: To provide a system and method for supporting verification of data integrity in a disk storage system. SOLUTION: Data, and atomicity metadata (AMD) and validity metadata (VMD) generated in association with the data are stored in a data chunk for providing logical representation of one or more sectors on a disk drive constituting a storage system. In parallel, one or more copies of the validity metadata are stored in a low latency nonvolatile storage device (LLNVS), and compared when accessed to verify data integrity. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供用于支持磁盘存储系统中的数据完整性的验证的系统和方法。 解决方案：与数据相关联地生成的数据和原子性元数据（AMD）和有效性元数据（VMD）被存储在用于提供构成存储系统的磁盘驱动器上的一个或多个扇区的逻辑表示的数据块中。 并行地，有效性元数据的一个或多个副本存储在低延迟非易失性存储设备（LLNVS）中，并且在被访问时进行比较以验证数据完整性。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：AT508410T

公开(公告)日：2011-05-15

申请号：AT08775126

申请日：2008-07-16

Applicant: IBM

Inventor： EDEL STEPHEN ,  BOYD KENNETH ,  DAY III KENNETH ,  MCBRIDE GREGORY

IPC: G06F11/20

Abstract: Provided are a method, system, and article of manufacture for managing the copying of writes from primary storages to secondary storages across different networks. Information is maintained on a first group of at least one primary storage, at least one primary device managing Input/Output (I/O) access to the at least one primary storage, and at least one corresponding secondary storage to which writes to the at least one primary storage are copied and a second group of at least one primary storage, at least one primary device managing Input/Output (I/O) access to the at least one primary storage, and at least one corresponding secondary storage to which writes to the at least one primary storage are copied. A failure notification is received from one of the primary devices in the first or second group of a failure to copy a write from the primary device to the secondary device. A freeze command is issued over a first network, using a first network protocol, to the at least one primary device in the first group to stop copying writes to the corresponding at least one secondary device. A freeze command is issued over a second network, using a second network protocol, to the at least one primary device in the second group to stop copying writes to the corresponding at least one secondary device.