Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral configuration
Reexamination Certificate
2006-03-10
2010-11-16
Tsai, Henry W (Department: 2184)
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral configuration
C710S310000, C711S161000, C711S162000, C714SE11101
Reexamination Certificate
active
07836215
ABSTRACT:
The exemplary embodiments of this invention provide in one non-limiting aspect thereof a control device operable to execute a filter layer, and includes a first interface for coupling to a first storage device and a second interface for coupling to a second storage device. The filter layer receives communications and, in a first mode, synchronously transmits the communications to the first storage device and asynchronously transmits the communications to the second storage device, and, in a second mode, synchronously transmits the communications to the second storage device.
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‘Disaster Recovery with IPStor’ Application Note, FalconStar Software, 2001-2002.
Harrington & Smith
International Business Machines - Corporation
Snyder Steven G
Tsai Henry W
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