Data storage system and control apparatus with a switch unit...

Details Data storage system and control apparatus with a switch unit... Data storage system and control apparatus with a switch unit...

2006-03-20

2008-08-26

Peyton, Tammara R (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral adapting

C710S033000, C710S038000, C710S072000, C710S074000, C710S120000, C711S112000, C711S113000, C711S114000, C711S143000, C714S004110, C714S005110, C714S006130

Reexamination Certificate

active

07418533

ABSTRACT:
A storage system has a plurality of control modules for controlling a storage device for accesses from a mainframe host and an open system host respectively supporting different protocols. An open channel adaptor and a mainframe channel adaptor are separately provided. The mainframe channel adaptor is connected to a plurality of control managers via front routers and performs parallel write access from the mainframe host for mirroring. In the write processing for the mainframe host, the connection is maintained until the completion of processing. In particular, even in case of a write miss, disk read processing can be performed in parallel, thus contributing to the high-speed processing in case of the write miss. Further, for an access from the open system host, a high throughput can be obtained.

REFERENCES:
patent: 6915380 (2005-07-01), Tanaka et al.
patent: 7139934 (2006-11-01), Nakagawa et al.
patent: 2006/0123200 (2006-06-01), Ito et al.
patent: 10-91363 (1998-04-01), None
patent: 11-203201 (1999-07-01), None
patent: 2001-256003 (2001-09-01), None
patent: 2003-303055 (2003-10-01), None

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