公开(公告)号：US11470152B2

公开(公告)日：2022-10-11

申请号：US17216383

申请日：2021-03-29

Applicant: Commvault Systems, Inc.

Inventor： Duncan Alden Littlefield ,  Sowdambiga Karthikeyan ,  Chiranjeevi Marella

IPC: H04L67/1095 ,  G06F11/14

Abstract: Multiple substantially concurrent data streams with NDMP protocol improve robustness, performance, and granularity of backup and restore operations from/to a filer. NDMP data streams are initially allocated based on inventorying the root level of each filer volume. A best effort to balance the multiple NDMP data streams allocates them based on data amounts used in each volume. Orphaned files are also collected and backed up. Subsequent full backup jobs leverage a proprietary index generated in preceding full backup jobs to obtain better performance and to better balance the NDMP data streams by creating substantially co-equal groupings of source data. The index comprises granular information which is not available from querying the filer. The size of each individual backup copy from a preceding full backup job and/or the size of subtending subdirectories or individual backed up files therein is used by later backup jobs to fine tune NDMP data stream allocation.

公开(公告)号：US12292802B2

公开(公告)日：2025-05-06

申请号：US18423685

申请日：2024-01-26

Applicant: Commvault Systems, Inc.

Inventor： Sowdambiga Karthikeyan ,  Duncan Alden Littlefield

IPC: G06F7/00 ,  G06F3/06 ,  G06F11/14

Abstract: 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.

公开(公告)号：US11288135B2

公开(公告)日：2022-03-29

申请号：US16814826

申请日：2020-03-10

Applicant: Commvault Systems, Inc.

Inventor： Sowdambiga Karthikeyan ,  Duncan Alden Littlefield

IPC: G06Q10/00 ,  G06F11/14 ,  G06F3/06

Abstract: 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.

公开(公告)号：US11921591B2

公开(公告)日：2024-03-05

申请号：US17673154

申请日：2022-02-16

Applicant: Commvault Systems, Inc.

Inventor： Sowdambiga Karthikeyan ,  Duncan Alden Littlefield

IPC: G06F7/00 ,  G06F3/06 ,  G06F11/14

CPC classification number: G06F11/1464 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/065 ,  G06F3/067 ,  G06F11/1448 ,  G06F11/1469

Abstract: 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.

公开(公告)号：US11005935B1

公开(公告)日：2021-05-11

申请号：US16814737

申请日：2020-03-10

Applicant: Commvault Systems, Inc.

Inventor： Duncan Alden Littlefield ,  Sowdambiga Karthikeyan ,  Chiranjeevi Marella

IPC: H04L29/08 ,  G06F11/14

Abstract: Multiple substantially concurrent data streams with NDMP protocol improve robustness, performance, and granularity of backup and restore operations from/to a filer. NDMP data streams are initially allocated based on inventorying the root level of each filer volume. A best effort to balance the multiple NDMP data streams allocates them based on data amounts used in each volume. Orphaned files are also collected and backed up. Subsequent full backup jobs leverage a proprietary index generated in preceding full backup jobs to obtain better performance and to better balance the NDMP data streams by creating substantially co-equal groupings of source data. The index comprises granular information which is not available from querying the filer. The size of each individual backup copy from a preceding full backup job and/or the size of subtending subdirectories or individual backed up files therein is used by later backup jobs to fine tune NDMP data stream allocation.

公开(公告)号：US20240193050A1

公开(公告)日：2024-06-13

申请号：US18423685

申请日：2024-01-26

Applicant: Commvault Systems, Inc.

Inventor： Sowdambiga Karthikeyan ,  Duncan Alden Littlefield

IPC: G06F11/14 ,  G06F3/06

CPC classification number: G06F11/1464 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/065 ,  G06F3/067 ,  G06F11/1448 ,  G06F11/1469

Abstract: 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.

公开(公告)号：US11693744B2

公开(公告)日：2023-07-04

申请号：US16409230

申请日：2019-05-10

Applicant: Commvault Systems, Inc.

Inventor： Duncan Alden Littlefield ,  Sowdambiga Karthikeyan

IPC: G06F11/14

CPC classification number: G06F11/1469 ,  G06F11/1461 ,  G06F11/1466

Abstract: Certain embodiments described herein relate to an improved synthetic full backup image generation system. In some embodiments, one or more components in an information management system can identify a file-server-created backup copy in a particular backup format of a plurality of backup formats, determine structure information associated with the particular backup format, and generate a synthetic full backup copy according to the structure information, where the synthetic full backup copy is also in the particular backup format identical to that of the file-server-created backup copy.

公开(公告)号：US20210289025A1

公开(公告)日：2021-09-16

申请号：US17216383

申请日：2021-03-29

Applicant: Commvault Systems, Inc.

Inventor： Duncan Alden Littlefield ,  Sowdambiga Karthikeyan ,  Chiranjeevi Marella

IPC: H04L29/08 ,  G06F11/14

Abstract: Multiple substantially concurrent data streams with NDMP protocol improve robustness, performance, and granularity of backup and restore operations from/to a filer. NDMP data streams are initially allocated based on inventorying the root level of each filer volume. A best effort to balance the multiple NDMP data streams allocates them based on data amounts used in each volume. Orphaned files are also collected and backed up. Subsequent full backup jobs leverage a proprietary index generated in preceding full backup jobs to obtain better performance and to better balance the NDMP data streams by creating substantially co-equal groupings of source data. The index comprises granular information which is not available from querying the filer. The size of each individual backup copy from a preceding full backup job and/or the size of subtending subdirectories or individual backed up files therein is used by later backup jobs to fine tune NDMP data stream allocation.