-
公开(公告)号：US20210103520A1
公开(公告)日：2021-04-08
申请号：US16592588
申请日：2019-10-03
IPC分类号： G06F12/02 , G06F12/123
摘要： A method, computer program product, and computer system for receiving, by a computing device, new data to write to a leaf. At least two timestamps of the leaf may be examined. It may be determined whether a time interval between the at least two timestamps of the leaf is greater than an age threshold. The new data may be written to a first tier storage device when the time interval between the at least two timestamps of the leaf is less than the age threshold; The new data may be written to a second tier storage device when the time interval between the at least two timestamps of the leaf is greater than the age threshold.
-
公开(公告)号：US10970221B2
公开(公告)日：2021-04-06
申请号：US16398670
申请日：2019-04-30
IPC分类号： G06F12/08 , G06F12/0871 , G06F3/06
摘要： A technique for managing data received into a cache operates in cycles. To process a current batch of compressed blocks during a current cache processing cycle, a storage system obtains a new mapping structure and a new segment of contiguous storage space. If the system can place some of the current batch of compressed blocks into previously-allocated space, the system does so and partially populates the new mapping structure with entries for mapping the other compressed blocks that were not placed. The system then asserts a hold on the new mapping structure, so that the mapping structure is retained in cache at the end of the current cache processing cycle, and more completely populates the new mapping structure with entries for other compressed blocks during a later cache processing cycle before releasing the hold.
-
公开(公告)号：US20210064236A1
公开(公告)日：2021-03-04
申请号：US16458496
申请日：2019-07-01
IPC分类号： G06F3/06
摘要： A method, system, and computer program product for multi-generational virtual block compaction comprising identifying a first virtual block, the first virtual block being associated with a first generation number, determining a second virtual block as an appropriate target for live information in the first virtual block, creating an association between the second virtual block and the first virtual block, updating the live information in the first virtual block to be associated with the second virtual block, updating a generation information mapping associated with the first virtual block; and associating a second generation number with the first virtual block.
-
公开(公告)号：US10936228B2
公开(公告)日：2021-03-02
申请号：US16450390
申请日：2019-06-24
发明人： Istvan Gonczi , Ivan Bassov , Philippe Armangau
IPC分类号： G06F3/06 , H04L9/06 , G06F12/0891 , G06F15/80 , H04L9/08
摘要： In response to a cache flush event indicating that host data accumulated in a cache of a storage processor of a data storage system is to be flushed to a lower deck file system, an aggregation set of blocks is formed within the cache, and a digest calculation group is selected from within the aggregation set. Hardware vector processing logic is caused to simultaneously calculate crypto-digests from the blocks in the digest calculation group. If one of the resulting crypto-digests matches a previously generated crypto-digest, deduplication is performed that i) causes the lower deck file system to indicate the block of data from which the previously generated crypto-digest was generated and ii) discards the block that corresponds to the matching crypto-digest. Objects required by a digest generation component may be allocated in a just in time manner to avoid having to manage a pool of pre-allocated objects.
-
公开(公告)号：US20210034579A1
公开(公告)日：2021-02-04
申请号：US16529538
申请日：2019-08-01
发明人： IVAN BASOV , Sorin Faibish , Istvan Gonczi , Philippe Armangau
IPC分类号： G06F16/174 , G06F16/13 , G06F3/06 , G06F9/54
摘要： A method, computer program product, and computer system for identifying, at a block level of a file, a duplicate block of a plurality of blocks within the file. Granularity of a block size used for deduplication of the file at the block level may be adjusted. A type of deduplication may be adjusted for the file. Deduplication of the file at the block level within the file may be executed based upon, at least in part, the granularity of the block size used for deduplication of the file at the block level.
-
66.发明申请公开(公告)号：US20210034409A1
公开(公告)日：2021-02-04
申请号：US16530839
申请日：2019-08-02
摘要： A method, computer program product, and computer system for receiving an indication about an amount of background IOs a background scheduler is capable of performing on a plurality of applications, wherein the indication may be based upon, at least in part, one of host IO latency and a rate of the host IO latency being at one of a plurality of levels. One or more applications of the plurality of applications on which to perform the background IOs may be determined. The background IO applications to be performed on the one or more applications of the plurality of applications may be scheduled based upon, at least in part, one of the host IO latency and the rate of the host IO latency being at one of the plurality of levels.
-
公开(公告)号：US10896152B2
公开(公告)日：2021-01-19
申请号：US16054216
申请日：2018-08-03
发明人： Yaming Kuang , Philippe Armangau
IPC分类号： G06F16/174
摘要： There is disclosed techniques for managing data storage. In one embodiment, the techniques comprise determining whether a part of a file system block is associated with deduplication. The techniques also comprise updating a deduplication record of the file system block, based on the said determination, to indicate a deduplication status in connection with the part such that the updated deduplication record describes for multiple occurrences of one or more parts of the file system block whether the respective one or more parts are associated with deduplication.
-
公开(公告)号：US20200379659A1
公开(公告)日：2020-12-03
申请号：US16426152
申请日：2019-05-30
摘要： A method system, and computer program product for improving data reduction using aggregate machine learning systems comprising receiving, by an aggregating machine learning system from one or more machine learning systems associated with a set of one or more storage arrays, a first set of output parameters indicative of performance metrics for the set of the one or more storage arrays, aggregating, by the aggregating machine learning system, the first set of output parameters, resulting in a second set of output parameters, and sending, from the aggregating machine learning system, at least one member of the second set of output parameters as an input to at least one of the one or more machine learning systems associated with the set of the one or more storage arrays.
-
公开(公告)号：US20200349047A1
公开(公告)日：2020-11-05
申请号：US16398477
申请日：2019-04-30
摘要： Techniques for detecting state changes in a system may include receiving a first neural network that is trained to detect when the system transitions into a first resulting state, wherein the system transitions into at least a first intermediate state prior to transitioning into the final resulting state; training the first neural network using a first plurality of inputs denoting the system in the first intermediate state; obtaining a plurality of sets of internal state information of the first neural network, each set of the plurality of sets denoting an internal state of the first neural network at a different point in time after the first neural network has processed at least a portion of the first plurality of inputs; and training a second neural network, using the plurality of sets of internal state information, to detect the first intermediate state.
-
公开(公告)号：US10824359B2
公开(公告)日：2020-11-03
申请号：US15798740
申请日：2017-10-31
IPC分类号： G06F16/17 , G06F3/06 , G06F16/13 , G06F16/174
摘要： A technique for storing data in a data storage system detects that a read is being performed pursuant to a data copy request. In response, the data storage system stores a digest of the data being read in an entry of a digest cache. Later, when a write pursuant to the same copy request arrives, the storage system obtains the entry from the digest cache and completes the write request without creating a duplicate copy of the data.
-
-
-
-
-
-
-
-
-
搜索结果
221 条记录 (耗时 0.021 秒)
