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公开(公告)号：US20240311363A1
公开(公告)日：2024-09-19
申请号：US18185184
申请日：2023-03-16
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Callum Murray , Aman Sahil , Richard Phillip Mayo
CPC classification number: G06F16/2365 , G06F16/2272
Abstract: Example implementations relate to deduplication operations in a storage system. An example includes initiating a housekeeping job to delete a backup item stored in a deduplication storage system; identifying a set of container indexes affected by the housekeeping job, the set of container indexes including at least a first container index; in response to a determination that a housekeeping work map includes a first work entry associated with the first container index, determining an ingest count of new data units added to a first container during an ingest of the backup item into the deduplication storage system, the first container associated with the first container index; and adding the determined ingest count to the cumulative counter included in the first work entry associated with the first container index.
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公开(公告)号：US11940882B2
公开(公告)日：2024-03-26
申请号：US17814575
申请日：2022-07-25
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Callum Murray , Richard Phillip Mayo
CPC classification number: G06F11/1453 , G06F3/0619 , G06F3/0647 , G06F3/0683 , G06F11/1435 , G06F11/1461
Abstract: Example implementations relate to metadata operations in a storage system. An example includes receiving, by a storage controller of a deduplication storage system, a plurality of data streams to be stored in persistent storage of the deduplication storage system; identifying, by the storage controller, a set of journals in a first journal group that are modified during a first backup process; determining, by the storage controller, a count of the set of journals that are modified during the first backup process; comparing, by the storage controller, the determined count to a migration threshold; and migrating, by the storage controller, at least one journal of the set of journals to a second journal group based at least on a comparison of the determined count to the migration threshold.
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公开(公告)号：US20240362122A1
公开(公告)日：2024-10-31
申请号：US18307960
申请日：2023-04-27
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Aman Sahil , Callum Murray , Richard Phillip Mayo
IPC: G06F11/14
CPC classification number: G06F11/1453 , G06F11/1461 , G06F2201/84
Abstract: Example implementations relate to deduplication operations in a storage system. An example includes receiving a stream of data units to be stored in a persistent storage of a deduplication storage system; loading a first container index into the memory to index one or more data units included in the stream; updating the first container index to indicate a storage location of a first data unit included in the stream; reading a manifest list in the first container index to identify a first manifest indexed by the first container index; and, while the first container index remains loaded in the memory to index the one or more data units, in response to a determination that the identified first manifest is included in the first backup item that has been marked for deletion, decrementing a reference count of a second data unit.
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Patent Agency Ranking
公开(公告)号：US20240311255A1
公开(公告)日：2024-09-19
申请号：US18185202
申请日：2023-03-16
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Richard Phillip Mayo , Aman Sahil , Callum Murray
IPC: G06F11/14
CPC classification number: G06F11/1453 , G06F2201/84
Abstract: Example implementations relate to deduplication operations in a storage system. An example includes generating a housekeeping work map to delete a backup item stored in a deduplication storage system; selecting a first work entry of the housekeeping work map, where the first work entry identifies a first container index and a first manifest; in response to a selection of the first work entry, loading the first container index into the memory, the first container index comprising a back-reference data structure; identifying, in the back-reference data structure, a back-reference entry indexed to the first manifest; determining, using the back-reference entry indexed to the first manifest, a first set of data units included in the first manifest and that are indexed in the first container index; and decrementing, in the first container index, a set of reference counts for the determined first set of data units.
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公开(公告)号：US12019620B2
公开(公告)日：2024-06-25
申请号：US17586131
申请日：2022-01-27
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Richard Phillip Mayo , Callum Murray , David Malcolm Falkinder
IPC: G06F16/9535 , G06F8/20 , G06F16/23 , G06F16/2455 , G06F16/248 , G06F16/28 , G06F16/951
CPC classification number: G06F16/2379 , G06F16/285
Abstract: Example implementations relate to metadata operations in a storage system. An example includes detecting, by a storage controller of a deduplication storage system, a housekeeping operation to perform updates to data of a set of container indexes of stored deduplicated data; in response to a detection of the housekeeping operation, the storage controller identifying, among the set of container indexes, a plurality of container indexes associated with a particular journal group, the particular journal group comprising a plurality of journals to store updates to data of the plurality of container indexes, respectively; and maintaining, by the storage controller, the particular journal group loaded in memory until all of the updates of the housekeeping operation to the plurality of container indexes have been stored in the respective journals of the particular journal group.
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公开(公告)号：US12130707B2
公开(公告)日：2024-10-29
申请号：US18185202
申请日：2023-03-16
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Richard Phillip Mayo , Aman Sahil , Callum Murray
IPC: G06F16/215 , G06F11/14
CPC classification number: G06F11/1453 , G06F2201/84
Abstract: Example implementations relate to deduplication operations in a storage system. An example includes generating a housekeeping work map to delete a backup item stored in a deduplication storage system; selecting a first work entry of the housekeeping work map, where the first work entry identifies a first container index and a first manifest; in response to a selection of the first work entry, loading the first container index into the memory, the first container index comprising a back-reference data structure; identifying, in the back-reference data structure, a back-reference entry indexed to the first manifest; determining, using the back-reference entry indexed to the first manifest, a first set of data units included in the first manifest and that are indexed in the first container index; and decrementing, in the first container index, a set of reference counts for the determined first set of data units.
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公开(公告)号：US20240028465A1
公开(公告)日：2024-01-25
申请号：US17814575
申请日：2022-07-25
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Callum Murray , Richard Phillip Mayo
CPC classification number: G06F11/1453 , G06F11/1461 , G06F11/1435 , G06F3/0619 , G06F3/0647 , G06F3/0683
Abstract: Example implementations relate to metadata operations in a storage system. An example includes receiving, by a storage controller of a deduplication storage system, a plurality of data streams to be stored in persistent storage of the deduplication storage system; identifying, by the storage controller, a set of journals in a first journal group that are modified during a first backup process; determining, by the storage controller, a count of the set of journals that are modified during the first backup process; comparing, by the storage controller, the determined count to a migration threshold; and migrating, by the storage controller, at least one journal of the set of journals to a second journal group based at least on a comparison of the determined count to the migration threshold.
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公开(公告)号：US20230237048A1
公开(公告)日：2023-07-27
申请号：US17586131
申请日：2022-01-27
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Richard Phillip Mayo , Callum Murray , David Malcolm Falkinder
CPC classification number: G06F16/2379 , G06F16/285
Abstract: Example implementations relate to metadata operations in a storage system. An example includes detecting, by a storage controller of a deduplication storage system, a housekeeping operation to perform updates to data of a set of container indexes of stored deduplicated data; in response to a detection of the housekeeping operation, the storage controller identifying, among the set of container indexes, a plurality of container indexes associated with a particular journal group, the particular journal group comprising a plurality of journals to store updates to data of the plurality of container indexes, respectively; and maintaining, by the storage controller, the particular journal group loaded in memory until all of the updates of the housekeeping operation to the plurality of container indexes have been stored in the respective journals of the particular journal group.
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