Boots – shoes – and leggings
Patent
1994-09-27
1995-10-17
Beausoliel, Jr., Robert W.
Boots, shoes, and leggings
3642685, G06F 1100
Patent
active
054598575
ABSTRACT:
A pair of operationally independent disk drive array data storage subsystems are used to emulate one or more physical devices shared between two control modules. The storage control units of the two data storage subsystems are interconnected by at least one data link to exchange control and data signals therebetween. The storage control units of both data storage subsystems are synchronized to maintain identical virtual device images of certain assigned virtual devices both of the data storage subsystems wherein the duplicated data records of the single virtual device are stored. The data records are therefore stored in available memory on both of the two data storage subsystems. Data is exchanged over the data link to maintain consistency of the two sets of mapping tables.
REFERENCES:
patent: 4342079 (1982-07-01), Stewart et al.
patent: 4849978 (1989-07-01), Dishon et al.
patent: 4862411 (1989-08-01), Dishon et al.
patent: 5051887 (1991-09-01), Berger et al.
patent: 5123099 (1992-06-01), Shibata et al.
patent: 5155835 (1992-10-01), Belsan
patent: 5155845 (1992-10-01), Beal et al.
patent: 5159671 (1992-10-01), Iwami
patent: 5170471 (1992-12-01), Bonevento et al.
patent: 5175839 (1992-12-01), Ikeda et al.
patent: 5185864 (1993-02-01), Bonevento et al.
patent: 5247618 (1993-09-01), Davis et al.
patent: 5274645 (1993-12-01), Idlemann et al.
EMC Corporation v. Storage Technology Corporation, In the United States District Court for the District of Delaware, Civil Action No. 94-482 JJF, Plaintiff EMC Corporation's Responses to Defendant's Second Set of Interrogatories Nos. 10-17.
Storage Technology Corporation, Confidential Document, Dec., 1987, STK Doc. 1012202.
Storage Technology Corporation, Internal Document, EV 050, STK v. EMC, STK 12435.
Ludlam Henry S.
Milligan Charles A.
Rudeseal George A.
Swiatek Paul R.
Beausoliel, Jr. Robert W.
Palys Joseph E.
Storage Technology Corporation
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