Lsi Logic Corporation

Lsi Corporation

Patrick S Flynn

Dean Lang

Donald Roman Humlicek

Scott Hubbard

Vaughn J Huffman

Disclosed are a method and a simplex array controller device that synchronize firmware revisions between an original, native, storage array controller in a single controller storage array system (i.e., a simplex array controller) and a replacement storage array controller that replaces the original, native, storage array controller. An embodiment may create and store an original firmware code image containing a copy of the firmware revision information running on an original simplex array controller along with controller and firmware revision identification off-board of the original array controller on a firmware repository storage device. The firmware repository storage device may be one of the storage devices selected from the array of storage devices controlled by the original array controller. When the original array controller is replaced by the replacement array controller, such as when the original array controller has failed, the replacement array controller may compare the firmware revision information of the firmware currently running on the array controller with the firmware revision information stored in the original firmware code image, and, if the revision information does not match, replace/overwrite the firmware revision on the replacement controller with the firmware revision stored in the firmware code image.

Method to synchronize a replacement controller's firmware version to the native configuration database version on a simplex array

The present invention is directed to a system and method for disabling and recreating a snapshot volume. A method of disabling repository volume activity corresponding to a point-in-time image and retaining repository volume attributes may include initiating a command in a electronic data storage system. The command disables copy-on-write activity to a repository volume created in relation to a first point-in-time image of a base volume, in which repository volume attributes are retained suitable for providing a repository volume corresponding to a second point-in-time image. A method of creating a point-in-time image of a base volume may include initiating a command to create a second point-in-time image of a base volume. The second point-in-time image is created utilizing a repository volume having attributes retained from a repository volume created previously with respect to a first point-in-time image.

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Wichita, KS, United States of America

Patrick S Flynn