Storage system and SSD swapping method of storage system

Storage system and SSD swapping method of storage system

Provided is a storage system having a management server, a drive box including a plurality of SSDs, and a controller which performs control of receiving an I/O request from a host computer and reading data from or writing data in the SSD in the drive box. The management server selects the SSD to be...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Saga, Tamami, Tanahashi, Yuma
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:Provided is a storage system having a management server, a drive box including a plurality of SSDs, and a controller which performs control of receiving an I/O request from a host computer and reading data from or writing data in the SSD in the drive box. The management server selects the SSD to be swapped on the basis of a lifetime at a swapping time of the SSD in the drive box, and the controller controls a writing frequency for the selected SSD so that the selected SSD is controlled to reach the end of the lifetime at the swapping time.