Storage system and operation method thereof

Details Storage system and operation method thereof Storage system and operation method thereof

2009-01-14

2011-10-11

Dudek, Jr., Edward (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S101000, C711S004000, C711SE12002, C360S072100, C360S134000

Reexamination Certificate

active

08037268

ABSTRACT:
Aiming to suitably balance, when backing up data to a magnetic tape, search time and writing/reading performance depending on the purpose of the backup, provided is a disk array apparatus including a disk device having hard disks, a magnetic tape device including a magnetic tape to which data to be backed up is written, and a control unit performing writing and reading processings of data between the disk device and the magnetic tape device. The control unit includes an FM (file mark) interval managing unit which receives a purpose of use when backing up the data on the magnetic tape, and from FM intervals which is held in association with the purpose of use thus received and which indicates an interval of recording FMs on the magnetic tape, acquires an FM interval corresponding to the purpose of use thus received, and transmits the acquired FM interval to the control unit.

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