STORAGE CONTROL DEVICE, STORAGE CONTROL METHOD AND STORAGE CONTROL PROGRAM

PROBLEM TO BE SOLVED: To restore a storage group in which a failure has occurred in another storage during rebuild processing.SOLUTION: A storage system 100 is configured to, when the storage information of disks 111 to 114 after the creation of a snap shot is updated, start recording the storage po...

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Bibliographische Detailangaben
Hauptverfasser:	ITO JUN, MAEDA CHIKASHI, IKEUCHI KAZUHIKO, TSUKAHARA RYOTA, DAIKOKUYA HIDEJIRO, KOBAYASHI KENJI, WATANABE TAKASHI, KUBOTA NORIHIDE
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To restore a storage group in which a failure has occurred in another storage during rebuild processing.SOLUTION: A storage system 100 is configured to, when the storage information of disks 111 to 114 after the creation of a snap shot is updated, start recording the storage position of the update object storage information in a tracking bit map 122. A storage control device 101 is configured to, when a disk 114 is turned into a first degeneration disk, restore the update object storage information of the disk 114 first in an HS 115 on the basis of the tracking bit map 122. The storage control device 101 is configured to, when the disk 113 is turned into the degeneration disk during the execution of normal rebuild processing, interrupt the normal rebuild processing. Then, the storage control device 101 is configured to restore the storage information of the disk 114 in the HS 115 on the basis of a backup volume 121 and the tracking bit map 122 as cooperative rebuild processing.