US Patent 7334079 Worm providing storage system
Patent 7334079 was granted and assigned to Hitachi on February, 2008 by the United States Patent and Trademark Office.
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A method for operating a storage system configured to provide a Write Once and Read Many (WORM) function includes receiving a first command at a storage subsystem from a host. At least a portion of the first command is stored on a WORM storage device coupled to the storage subsystem. A second command is received at the storage subsystem. The second command is examined using a command filter, the filter being provided with a predetermined rule for filtering selected types of commands. At least a portion of the second command is stored if the second command satisfies the predetermined rule. The WORM storage device is used to verify the WORM function of the storage system.
US Patent 07334079 Worm providing storage system US Patent 7334079 Worm providing storage system
US Patent 07334079 Worm providing storage system
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