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公开(公告)号：US11625179B2
公开(公告)日：2023-04-11
申请号：US17180903
申请日：2021-02-22
IPC分类号： G06F3/06 , G06F12/0893
摘要： A cache storage system indexing method is provided that indexes a data address in a cache storage system based on a data fingerprint of the cached data, wherein the data fingerprint is generated by a deduplication fingerprint function used for referencing deduplication of data in the cache storage system. A computer-implemented method of data operations to a cache storage system is also provided including: obtaining a data fingerprint for the data of the data operation, either by applying a deduplication fingerprinting function to data of a write operation or by accessing deduplication metadata for a read operation to obtain the data fingerprint generated by using a deduplication fingerprinting function used for deduplication of data in the cache storage system; and using an indexing service to the cache storage system having an address schema based on the data fingerprints of the data.
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公开(公告)号：US11621919B2
公开(公告)日：2023-04-04
申请号：US17464743
申请日：2021-09-02
IPC分类号： H04L47/125 , H04L41/5009 , H04L41/5019
摘要： A computer system hosting (micro)services that uses a service mesh to govern communication between the services. The services include consumer services and an event stream service, the latter directing an event stream from a producer service to the individual consumer services. The control plane of the service mesh has the role of creating and removing service instances. Based on a specified event capacity that is to be provided by the consumer services collectively, the control plane manages service provisioning by estimating the current event capacity of the system. This is done by measuring the event capacities of each consumer service instance and summing them, from which any shortfall or excess of the current event capacity in relation to the specified event capacity can be determined. Consumer service instances are then added in case of a shortfall or removed in case of an excess as needed to avoid over or under-provisioning.
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公开(公告)号：US11494351B2
公开(公告)日：2022-11-08
申请号：US16864649
申请日：2020-05-01
IPC分类号： G06F16/215 , H04L9/14 , H04L9/08
摘要： A data storage system configured to deduplicate and store sets of data is presented. The system comprises a computer readable storage device configured to store a plurality of sets of data for a plurality of hosts, wherein each sets of data of the plurality of sets of data corresponding to each host of the plurality of hosts is encrypted with one or more different encryption keys, and wherein at least one of the plurality of sets of data contains deduplicated data. The system also comprises a key translator configured to create at least one translation key based, at least in part, on the one or more different encryption keys and the deduplicated data, and wherein the at least one translation key is configured to translate from a first encryption key to a second encryption key of the one or more different encryption keys.
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公开(公告)号：US11372723B2
公开(公告)日：2022-06-28
申请号：US16667666
申请日：2019-10-29
摘要： An apparatus for dynamically adjusting a journal snapshot window is disclosed. A computer-implemented method and computer program product also perform the functions of the apparatus. According to an embodiment of the present invention, a failure detection module detects a potential failure of at least a portion of a non-volatile storage device. The non-volatile storage device includes a journal for tracking metadata changes for data that is stored on the non-volatile storage device prior to committing the metadata changes to metadata for the non-volatile storage device. A notification receiving module receives an indication of the potential failure of the non-volatile storage device. A snapshot module adjusts a snapshot window for the journal in response to the indication of the potential failure. The snapshot window includes a set of metadata changes in the journal that have not been committed to the metadata of the non-volatile storage device.
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公开(公告)号：US20200310932A1
公开(公告)日：2020-10-01
申请号：US16364316
申请日：2019-03-26
摘要： Method and system are provided for handling an underperforming drive in a redundant array of independent disks (RAID) operating a distributed sparing mechanism. The method includes marking an underperforming drive in the array as resting and allocating distributed spare space of the array for data of operations to the resting drive. A data structure is designated to track operations diverted to the distributed spare space from the resting drive. If the resting drive is recovered, the method rebuilds data to the recovered drive from the distributed spare space by reference to the data structure.
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公开(公告)号：US12047440B2
公开(公告)日：2024-07-23
申请号：US17494337
申请日：2021-10-05
IPC分类号： G06F15/16 , H04L67/1012 , H04L67/1014 , H04L67/51 , H04L67/563
CPC分类号： H04L67/1014 , H04L67/1012 , H04L67/51 , H04L67/563
摘要： In a service mesh, back-pressure is applied and relieved as needed by a control mechanism which is applied between pairs of services to control the rate at which service requests are made from one of service to the other via monitoring hardware and/or software metrics. A proxy of one service is monitored to observe the rate at which it receives service requests from the other service. If it is observed that the monitored metrics have breached allowable limits, back-pressure is applied to reduce the rate at which the other proxy transmits these service requests. Through continued monitoring of the proxy, the back-pressure can be later relieved when appropriate by increasing the permitted request rate.
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公开(公告)号：US12045173B2
公开(公告)日：2024-07-23
申请号：US16852443
申请日：2020-04-18
IPC分类号： G06F12/00 , G06F12/123
CPC分类号： G06F12/123 , G06F2212/1044
摘要： Aspects of the present invention disclose a method, computer program product, and system for stale data recovery using virtual storage metadata. The method includes one or more processors generating a primary virtual storage metadata structure having virtual address areas for a data chunk. Each area includes a plurality of most recent updates of metadata for the data chunk. The metadata of each update includes a sequence number for the update and a pointer to the physical location of the data. The method further includes one or more processors generating an overflow virtual storage metadata structure for multiple virtual address areas. The overflow metadata structure includes updates that have overflowed from the virtual address areas. In addition, wherein an oldest update in a full virtual address area of the primary virtual storage metadata structure includes a link to an overflow location.
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公开(公告)号：US20210349705A1
公开(公告)日：2021-11-11
申请号：US16867061
申请日：2020-05-05
摘要： A processor may identify a storage system having a cluster of multiple nodes with redundancy for sharing a load of host input/output (IO) operations. The processor may upgrade one or more nodes at a time making use of redundancy. The processor may collect performance statistics of the storage system with the upgraded nodes during active use of the host IO operations. The processor may compare the collected performance statistics with historical performance statistics for the storage system. If the upgraded nodes show a negative performance impact, the processor may take remedial action. Otherwise, the processor may continue to upgrade the remaining nodes.
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公开(公告)号：US20210342318A1
公开(公告)日：2021-11-04
申请号：US16864649
申请日：2020-05-01
IPC分类号： G06F16/215 , H04L9/14 , H04L9/08
摘要： A data storage system configured to deduplicate and store sets of data is presented. The system comprises a computer readable storage device configured to store a plurality of sets of data for a plurality of hosts, wherein each sets of data of the plurality of sets of data corresponding to each host of the plurality of hosts is encrypted with one or more different encryption keys, and wherein at least one of the plurality of sets of data contains deduplicated data. The system also comprises a key translator configured to create at least one translation key based, at least in part, on the one or more different encryption keys and the deduplicated data, and wherein the at least one translation key is configured to translate from a first encryption key to a second encryption key of the one or more different encryption keys.
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公开(公告)号：US20210124649A1
公开(公告)日：2021-04-29
申请号：US16667666
申请日：2019-10-29
摘要： An apparatus for dynamically adjusting a journal snapshot window is disclosed. A computer-implemented method and computer program product also perform the functions of the apparatus. According to an embodiment of the present invention, a failure detection module detects a potential failure of at least a portion of a non-volatile storage device. The non-volatile storage device includes a journal for tracking metadata changes for data that is stored on the non-volatile storage device prior to committing the metadata changes to metadata for the non-volatile storage device. A notification receiving module receives an indication of the potential failure of the non-volatile storage device. A snapshot module adjusts a snapshot window for the journal in response to the indication of the potential failure. The snapshot window includes a set of metadata changes in the journal that have not been committed to the metadata of the non-volatile storage device.
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