Storage system and its initial copy method

Upon starting the initial copy process, a pair creation command is issued from a primary disk subsystem to a secondary disk subsystem. The secondary disk subsystem sets a target area of a second disk drive to an unwritten status, and thereafter writes update data that was updated in a primary site i...

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Hauptverfasser: INOUE HIRONOBU, SUZUKI HIDENORI
Format: Patent
Sprache:eng
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