公开(公告)号：DE69622253D1

公开(公告)日：2002-08-14

申请号：DE69622253

申请日：1996-08-29

Applicant: EMC CORP

Inventor： OFEK YUVAL ,  YANAI MOSHE

IPC: G06F12/00 ,  G06F3/06 ,  G06F11/14 ,  G06F12/06 ,  G06F12/08 ,  G11B5/86 ,  G11B19/02 ,  G06F13/00

公开(公告)号：GB2366425A

公开(公告)日：2002-03-06

申请号：GB0108069

申请日：2001-03-30

Applicant: EMC CORP

Inventor： OFEK YUVAL ,  BLACK DAVID L ,  MACARTHUR STEPHEN D ,  WHEELER RICHARD ,  THIBAULT ROBERT

IPC: G06F3/06 ,  G06F11/20 ,  G06F12/08 ,  G06F13/00 ,  G06F13/10 ,  G06F13/36

Abstract: A system interface includes a plurality of first directors 180, a plurality of second directors 200, a data transfer section 240 and a message network 260. The data transfer section includes a cache memory 220 which is coupled to the directors 180, 200. The messaging network 260 operates independently of the data transfer section and is also coupled to the first and second directors 180, 200. Data transfer between the first directors and the second directors is controlled in response to messages passing between the first directors and the second directors through the messaging network 260 and the data passes through the cache memory 220 in the data transfer section. The first and second directors may be coupled respectively to computer/server 120 and a bank of disc drives 140.

公开(公告)号：DE10116337A1

公开(公告)日：2001-10-25

申请号：DE10116337

申请日：2001-04-02

Applicant: EMC CORP HOPKINTON

Inventor： OFEK YUVAL ,  BLACK DAVID L ,  MACARTHUR STEPHEN D ,  WHEELER RICHARD ,  THIBAULT ROBERT

IPC: G06F3/06 ,  G06F11/20 ,  G06F12/08 ,  G06F13/00 ,  G06F13/10 ,  G06F12/00

Abstract: The data memory system has a host computer server (120) that transfers information to a number of disc drives (140) via a system interface (160) that is based around a cache memory (220). The interconnection is made via front and back control units (180,200) that receive inputs from cross over switching stages (260). This provides redundancy to protect against failure.

公开(公告)号：AU3224897A

公开(公告)日：1998-01-05

申请号：AU3224897

申请日：1997-05-29

Applicant: EMC CORP

Inventor： OFEK YUVAL

IPC: G06F12/00 ,  G06F3/06 ,  G06F11/14 ,  G06F11/20 ,  G06F13/00

Abstract: A data network with data storage facilities for providing redundant data storage and for enabling concurrent access to the data for multiple purposes. A first data processing system with a first data facility stores a data base and processes transactions or other priority applications. A second data storage facility, that may be physically separated from the first data storage facility, mirrors the data in the first data storage facility. In a concurrent access operating mode, the second data storage facility makes the data available to an application concurrently with, but independently of, the operation of the other application. On completion of the concurrent operation, the second data storage facility can reconnect with and synchronizes with the first data storage facility thereby to reestablish the mirroring operation.