公开(公告)号：WO2003052577A3

公开(公告)日：2003-06-26

申请号：PCT/US2002/040263

申请日：2002-12-17

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： MILILLO, Michael S. ,  HOSTETTER, David G. ,  WEST, Christopher J. ,  ESKENBERRY, Robert P.

IPC: G06F12/08

Abstract: A cache storage system and method are provided for saving storage space in a cache, the system and method for use in a data storage system having multiple storage devices and multiple vitual addresses, each virtual address having a data object associated therewith. Each data object is stored at a storage device location having a unique identifier. The cache storage system and method include a cache for storing a data object associated with at least one virtual address. For a first virtual address, the first virtual address data object is staged into the cache. For a second virtual address, a pointer is generated for use in pointing to the first virtual address data object staged in the cache when the storage device location identifier of the second virtual address data object matches the storage device location identifier of the first virtual address data object.

公开(公告)号：WO2003052577A2

公开(公告)日：2003-06-26

申请号：PCT/US2002/040263

申请日：2002-12-17

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： MILILLO, Michael S. ,  HOSTETTER, David G. ,  WEST, Christopher J. ,  ESKENBERRY, Robert P.

IPC: G06F3/06

CPC classification number: G06F12/0866

Abstract: A cache storage system and method are provided for saving storage space in a cache, the system and method for use in a data storage system having multiple storage devices and multiple vitual addresses, each virtual address having a data object associated therewith. Each data object is stored at a storage device location having a unique identifier. The cache storage system and method include a cache for storing a data object associated with at least one virtual address. For a first virtual address, the first virtual address data object is staged into the cache. For a second virtual address, a pointer is generated for use in pointing to the first virtual address data object staged in the cache when the storage device location identifier of the second virtual address data object matches the storage device location identifier of the first virtual address data object.

Abstract translation: 提供了一种缓存存储系统和方法，用于节省高速缓存中的存储空间，该系统和方法用于具有多个存储设备和多个虚拟地址的数据存储系统中，每个虚拟地址具有与之相关联的数据对象。 每个数据对象被存储在具有唯一标识符的存储设备位置处。 高速缓存存储系统和方法包括用于存储与至少一个虚拟地址相关联的数据对象的高速缓存。 对于第一个虚拟地址，第一个虚拟地址数据对象被分段到缓存中。 对于第二虚拟地址，当第二虚拟地址数据对象的存储设备位置标识符与第一虚拟地址数据的存储设备位置标识符匹配时，生成用于指向分段在高速缓存中的第一虚拟地址数据对象的指针 目的。

公开(公告)号：WO2002073410A3

公开(公告)日：2002-09-19

申请号：PCT/US2002/005582

申请日：2002-02-26

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： HOSTETTER, David G. ,  MILILLO, Michael S. ,  WEST, Christopher J. ,  EKSENBERRY, Robert P.

IPC: G06F11/20

Abstract: A system and method for synchronizing a data copy that include a source volume having a data file stored thereon (72), the source volume for receiving write commands from a host (74), executing the write commands to generate an updated data file (76), and generating a record of the write commands (78). The system and method further include a secondary volume having a copy of the data file stored thereon, the secondary volume for receiving and storing data indicated by the write command record (82), wherein the copy of the data file and the data indicated by the write command record are available for use in generating a copy of the updated data file.