SYNTHESIZING A RESTORE IMAGE FROM ONE OR MORE SECONDARY COPIES TO FACILITATE DATA RESTORE OPERATIONS TO A FILE SERVER

SYNTHESIZING A RESTORE IMAGE FROM ONE OR MORE SECONDARY COPIES TO FACILITATE DATA RESTORE OPERATIONS TO A FILE SERVER

An illustrative media agent (MA) in a data storage management system instructs a NAS file server (filer) to restore an MA-created synthesized-copy instead of larger filer-created backup copies. The synthesized-copy is designed only for the particular files to be restored and mimics, and is typically...

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Hauptverfasser: KARTHIKEYAN, Sowdambiga, LITTLEFIELD, Duncan Alden
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator KARTHIKEYAN, Sowdambiga
LITTLEFIELD, Duncan Alden
description An illustrative media agent (MA) in a data storage management system instructs a NAS file server (filer) to restore an MA-created synthesized-copy instead of larger filer-created backup copies. The synthesized-copy is designed only for the particular files to be restored and mimics, and is typically much smaller than, a filer-created backup copy. The synthesized-copy is fed to the filer on restore as a "restore data image." When receiving a restore request for certain backed-up data files, the MA synthesizes the synthesized-copy on the fly. The MA generates a header mimicking a filer-created backup header; extracts files from filer-created backup copies arranging them within the synthesized-copy as if in filer-created backups; and instructs filer to perform a full-volume restore from the synthesized-copy. The MA serves the synthesized-copy piecemeal as available, rather than waiting to synthesize the entire synthesized-copy. The synthesized-copy is not stored at the MA.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title SYNTHESIZING A RESTORE IMAGE FROM ONE OR MORE SECONDARY COPIES TO FACILITATE DATA RESTORE OPERATIONS TO A FILE SERVER
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