Storage control unit and method for handling data storage...

Details Storage control unit and method for handling data storage... Storage control unit and method for handling data storage...

2005-05-03

2005-05-03

Ellis, Kevin L. (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

Reexamination Certificate

active

06889286

ABSTRACT:
For providing a storage control unit to be connected to a fiber channel, in which a new storage control unit is added onto the fiber channel network during on-line operation and succeeds control information of a logical unit from the storage control unit which has been existing before, so as to be in charge of a process request issued to that logical unit from a host computer thereafter, wherein a control memory being able to memorize the control information is provided in each of the storage control units30and40, which information is necessary when succeeding or taking over the logical unit and is represented by such as construction information of a magnetic disk drive within a disk drive unit20and construction information of the logical unit, so on. The contents of the control memory within the storage control unit30is copied into the control memory of the storage control unit40when the new storage control unit40is added onto the fiber channel network.

REFERENCES:
patent: 5587685 (1996-12-01), Johansson
patent: 5615352 (1997-03-01), Jacobson et al.
patent: 5822782 (1998-10-01), Humlicch et al.
patent: 5875456 (1999-02-01), Stallme et al.
patent: 6061752 (2000-05-01), Jones et al.
patent: 6085332 (2000-07-01), El-Batal

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