SYSTEM AND METHOD FOR MANAGING DIFFERENT TYPES OF SNAPSHOTS OF STORAGE OBJECTS

SYSTEM AND METHOD FOR MANAGING DIFFERENT TYPES OF SNAPSHOTS OF STORAGE OBJECTS

System and method for managing different types of snapshots of storage objects stored in a storage system uses a storage structure that includes both a storage object and any snapshots of the storage object. When a request to delete a snapshot of the storage object is received, a determination is ma...

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Bibliographische Detailangaben
Hauptverfasser: DESAI, Asit, ULUSKI, Derek, Satnur, Sunil, JAISHANKAR, Anoop, GARTHWAITE, Alexander T, LANGUEV, Ilya
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Zusammenfassung:System and method for managing different types of snapshots of storage objects stored in a storage system uses a storage structure that includes both a storage object and any snapshots of the storage object. When a request to delete a snapshot of the storage object is received, a determination is made whether the snapshot is a first snapshot type. After determining that the snapshot is not the first snapshot type, the snapshot is deleted from the storage structure. After determining that the snapshot is the first snapshot type, the snapshot is marked as delete designated, and a deletion of the snapshot from the storage structure is prevented when there is a second snapshot type snapshot remaining in the storage structure that was created after the snapshot had been created so that the snapshot is available when the second snapshot type snapshot is subsequently used.