公开(公告)号：JP2001222469A

公开(公告)日：2001-08-17

申请号：JP2000330866

申请日：2000-10-30

Applicant: EMC CORP

Inventor： LAMBRIGHT DANIEL ,  OFER ADI ,  VISHLITZKY NATAN ,  OFEK YUVAL

IPC: G06F12/08 ,  G06F12/12 ,  G06F15/16 ,  G06F15/177

Abstract: PROBLEM TO BE SOLVED: To provide a mechanism for controlling a cache service to be provided to a host processor system connected to a storage device so that some host processors can receive higher cache performance than other host processors. SOLUTION: The system is provided with a process for accessing a 1st segment of a cache memory for an external host system of a 1st group connected to a storage device and process for accessing a 2nd segment of the cache memory for an external host system of a 2nd group connected to the storage device. At least part of the 2nd segment of the cache memory is not part of the 1st segment of the cache memory. The system may also be provided with a process for providing 1st data structure to the 1st segment of the cache memory and a process for providing 2nd data structure to the 2nd segment of the cache memory. The access of the 1st segment includes the access of the 1st data structure and the access of the 2nd segment includes the access of the 2nd data structure.

公开(公告)号：JP2006196011A

公开(公告)日：2006-07-27

申请号：JP2006028456

申请日：2006-02-06

Applicant: Emc Corp ,  イーエムシー コーポレイションEmc Corporation

Inventor： LAMBRIGHT DANIEL ,  OFER ADI ,  VISHLITZKY NATAN ,  OFEK YUVAL

IPC: G06F3/06 ,  G06F12/08 ,  G06F12/12 ,  G06F15/16 ,  G06F15/177

CPC classification number: G06F12/123 ,  G06F12/0866 ,  G06F2212/312

Abstract: PROBLEM TO BE SOLVED: To allow several host processors to receive better cache performance in comparison with other host processors.
SOLUTION: A method for storing data in a cache memory of a storage device includes a process for offering a first data structure to a first segment in the cache memory and a process for offering a second data structure to a second segment in the cache memory. Access to the first segment includes that to the first data structure, while access to the second segment includes that to the second data structure. The data structure can serve as a doubly linked ring list of a data block. An external host system in a different group is provided with different access, priority, and level of service with respect to the different segments of the cache.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：与其他主机处理器相比，允许多个主机处理器接收更好的缓存性能。 解决方案：用于将数据存储在存储设备的高速缓冲存储器中的方法包括向第一段提供第一数据结构的过程，以及用于向第二段提供第二数据结构的过程， 高速缓存存储器。 访问第一段包括对第一数据结构的访问，而对第二段的访问包括到第二数据结构的访问。 数据结构可以作为数据块的双向链接列表。 向不同组中的外部主机系统提供相对于高速缓存的不同段的不同访问，优先级和服务级别。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2001188707A

公开(公告)日：2001-07-10

申请号：JP2000330774

申请日：2000-10-30

Applicant: EMC CORP

Inventor： LAMBRIGHT DANIEL ,  OFER ADI ,  VISHLITZKY NATAN ,  OFEK YUVAL

IPC: G06F9/52 ,  G06F12/08 ,  G06F12/12 ,  G06F15/16 ,  G06F15/177

Abstract: PROBLEM TO BE SOLVED: To provide a host processor system connected with a storage device so that several host processors can receive more satisfactory performance than the other host processors. SOLUTION: This method comprises for offering a first mechanism capable of performing exclusive access to the first part of a cache memory and a process for offering a second mechanism capable of performing exclusive access to the second part of the cache memory, and the exclusive access to the first pat is made independent of the exclusive access to the second part. This method comprises a process for offering a first data structure to the first part of the cache memory and a process for offering a second data structure to the second part of the cache memory, and the access to the first part includes the access to the first data structure, and the access to the second part includes the access to the second structure. The data structure can be obtained as a ring list in which the blocks of the data are doubly linked, and it is possible to correspond to a tracks on a disk drive.