US Patent 7533298 Write journaling using battery backed cache
Patent 7533298 was granted and assigned to LSI Corporation on May, 2009 by the United States Patent and Trademark Office.
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A system, apparatus and method for maintaining information related to a write operation is described. In one embodiment of the invention, a write journal is provided that contains a list of entries that store information related to active write operations so that a particular write may be restarted in order to correct an inconsistency. The journal may have a battery backed cache, in which data is stored prior to writing to a disk, which is provided power in the case of a power failure. The journal may be located in memory positioned at various locations within a system including on a controller card for a disk array system or on a motherboard of a host system.
US Patent 07533298 Write journaling using battery backed cache US Patent 7533298 Write journaling using battery backed cache
US Patent 07533298 Write journaling using battery backed cache
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