Location-independent raid group virtual block management

A computer storage system is described. A range of volume block numbers (VBNs) is assigned to a volume. A range of storage device block numbers (DBNs) is assigned to each of a plurality of storage devices. A first mapping parameters are created to map a first range of VBN numbers to a first selected...

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Bibliographische Detailangaben
Hauptverfasser: SCHOENTHAL SCOTT, VISWANATHAN SRINIVASAN, STRANGE STEPHEN H, DOUCETTE DOUGLAS P
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A computer storage system is described. A range of volume block numbers (VBNs) is assigned to a volume. A range of storage device block numbers (DBNs) is assigned to each of a plurality of storage devices. A first mapping parameters are created to map a first range of VBN numbers to a first selected range of DBNs using a first portion of a new storage device. A second mapping parameters are created to map a second range of VBN numbers to a second range of DBNs on a second portion of the new storage device.