Package blocking method for a storage system having a bus common

Details Package blocking method for a storage system having a bus common Package blocking method for a storage system having a bus common

1996-10-31

1998-07-14

Butler, Dennis M.

395560, G06F 114

Patent

active

057817677

ABSTRACT:
The host adaptor packages 4 and the disk adaptor packages 6 which constitute the magnetic disk subsystem 1 are connected to the common bus 3 consisting of a data bus, a control bus, and a power line in the hot replacement ready state. The packages 4 and 6 have the control means 11 and the clock generator 14 and when a failure occurs in respective packages, the package replace controller 13 mounted in the control means 11 executes the blocking processing for the bus driver 15 and the clock generator 14. If this occurs, the clock generator 14 enters the stopped state, so that the circuit in the package enters the reset state and the package function is stopped, that is, the package enters the blocked state. As a result, hot replacement of the closed package can be executed without affecting the operation of the system.

REFERENCES:
patent: 4484275 (1984-11-01), Katzman et al.
patent: 4870643 (1989-09-01), Bultman et al.
patent: 5077736 (1991-12-01), Dunphy, Jr. et al.
patent: 5423046 (1995-06-01), Nunnelley et al.
patent: 5430855 (1995-07-01), Walsh et al.
patent: 5625777 (1997-04-01), Takahashi et al.

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