International Business Machines Corporation

David Mark Lee

Robert Bruce Nicholson

Allen Ronald Cox

Colin R Jewell

Huw Francis

A storage adapter for use in a data storage subsystem includes a controlling processor, a volatile memory, and a nonvolatile memory 'dump device.' The storage adapter also includes a battery that can be used to provide sufficient power to the storage adapter to allow data from the volatile memory to be written to the nonvolatile memory of the storage adapter under the control of the processor in the event of an interruption or failure in the main power supply to the storage adapter, i.e. to preserve data stored in the volatile memory in that event. The processor uses the current state of charge of the battery to determine the amount of data that can be 'dumped' to the nonvolatile dump device before the battery is depleted.

Data storage system with persistent volatile memory across power failures

A method of storing data in a memory device is disclosed. The method comprises dividing data to be stored in a memory device into one or more data segments; storing the one or more data segments in the memory device; for a particular data segment among the one or more data segments, creating an error detection code; storing the error detection code in the memory device; for the particular data segment, determining an error correction segment that is a logical combination of the particular data segment with a second data segment, wherein the error correction can be used to reconstruct the particular data segment; and storing the error correction segment in the memory device.

Method and system for correcting errors in a memory device

A battery mounting () is provided for detachable placement in a device. The battery mounting () comprises a housing () for at least one battery cell (), a clip () having a cammed surface () for cooperation with between the housing () and a portion of the device, a lock () with a-means for applying a force to the chip () for locking the battery mounting () in place in the device, and at least one power contact () for connecting the at least one battery cell () to the device. The lock () provides a load in the engaging direction of the at least one power contact ().

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Southampton, United Kingdom

David Mark Lee