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公开(公告)号：US10649860B2
公开(公告)日：2020-05-12
申请号：US15697732
申请日：2017-09-07
摘要： A computer-implemented method for managing a tiered storage system having an archive tier and an active storage tier comprises determining a workload for moving data between the active tier and the archive tier; and determining an assignment of data to be stored across the active tier and the archive tier, based on the determined workload.
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公开(公告)号：US10579281B2
公开(公告)日：2020-03-03
申请号：US14829133
申请日：2015-08-18
摘要： A method for storing a data segment in a storage tier of a storage unit comprising at least two storage tiers includes receiving the data segment to be stored including metadata; receiving metadata of data segments stored in the storage unit; and determining the storage tier to store the received data segment to and a protection level dependent on the metadata received and dependent on the metadata of the received data segment.
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公开(公告)号：US20190392303A1
公开(公告)日：2019-12-26
申请号：US16015897
申请日：2018-06-22
摘要： A computer-implemented method for managing datasets of a storage system is provided, wherein the datasets have respective sets of metadata, the method including: successively feeding first sets of metadata to a spiking neural network (SNN), the first sets of metadata fed corresponding to datasets of the storage system that are labeled with respect to classes they belong to, so as to be associated with class labels, for the SNN to learn representations of said classes in terms of connection weights that weight the metadata fed; successively feeding second sets of metadata to the SNN, the second sets of metadata corresponding to unlabeled datasets of the storage system, for the SNN to infer class labels for the unlabeled datasets, based on the second sets of metadata fed and the representations learned; and managing datasets in the storage system, based on class labels of the datasets, these including the inferred class labels.
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24.发明申请公开(公告)号：US20180276134A1
公开(公告)日：2018-09-27
申请号：US15467423
申请日：2017-03-23
IPC分类号： G06F12/0888 , G06N7/00
CPC分类号： G06F12/0888 , G06F12/08 , G06F12/0862 , G06F2212/1016 , G06F2212/502 , G06F2212/6026 , G06N7/005
摘要： A computer-implemented method is provided for managing digital datasets stored on a multi-tiered storage system that includes several tiers of storage, the datasets likely to be accessed by one or more applications interacting with the storage system. The method includes monitoring an access history of datasets accessed by the one or more applications; and while monitoring the access history: computing probabilities of access, by the one or more applications, of the datasets stored on the storage system according to metadata associated to given datasets as identified in the monitored access history; and based on the computed probabilities of access, selecting one or more of the datasets to be moved across the tiers. Related storage systems and computer program products are also provided.
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公开(公告)号：US20180107425A1
公开(公告)日：2018-04-19
申请号：US15297750
申请日：2016-10-19
IPC分类号： G06F3/06
摘要： An embodiment is directed to a method for determining an assignment of data to be stored on at least one storage tier i of a plurality of storage tiers of a tiered storage system. The method including, for the at least one storage tier i, steps of accessing storage device characteristics of the at least one storage tier i of the plurality; based on the accessed storage device characteristics, splitting the at least one storage tier i into Ni storage subtiers of the at least one storage tier i, the Ni storage subtiers having respective storage device characteristics; and based on characteristics of data to be stored on the tiered storage system and the respective storage device characteristics of the Ni storage subtiers, determining an assignment of data to be stored on each of the Ni storage subtiers. Embodiments are directed to related methods, systems and computer program products.
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公开(公告)号：US09785364B2
公开(公告)日：2017-10-10
申请号：US14886018
申请日：2015-10-17
发明人： Ilias Iliadis , Vinodh Venkatesan
CPC分类号： G06F3/0619 , G06F3/0614 , G06F3/0616 , G06F3/0629 , G06F3/064 , G06F3/0683 , G06F3/0685 , G06F12/023 , G06F12/0623 , G06F12/0646 , G06F12/0692 , G06F13/1694 , G06F13/20 , G06F13/385 , G06F13/387
摘要： A method is provided for increasing data storage reliability in a heterogeneous storage system including multiple storage devices of different types. The devices store respective data subsets of a dataset. The method includes accessing configuration parameters for the dataset including first and second amounts of the data subsets respectively stored on the multiple storage devices. The method further includes estimating an initial global reliability of the heterogeneous storage system for the dataset, based on the configuration parameters. The method also includes determining an increased global reliability of the storage system for the dataset, by estimating a global reliability as would be obtained by modifying at least some of the configuration parameters, whereby at least the first and second amounts of the data subsets respectively stored on the devices are modified. The method further includes reconfiguring the dataset stored across the heterogeneous storage system according to the modified configuration parameters.
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公开(公告)号：US09635109B2
公开(公告)日：2017-04-25
申请号：US14146014
申请日：2014-01-02
CPC分类号： H04L67/1097 , G06F11/008 , G06F11/14 , G06F11/1456 , G06F11/1464 , H04L67/1095
摘要： Machines, systems and methods for optimizing data replication in a distributed storage network, the method comprising determining a need to create a replica for a data item in a remote failure zone in a data storage network; creating a temporary replica of the data item in a local failure zone defined in the data storage network, in response to determining that it is beneficial to create the temporary replica in the local failure zone based on a cost versus reliability improvement analysis; attempting to create the replica in the remote failure zone; and removing the temporary replica from the local failure zone, in response to successfully creating the replica in the remote failure zone.
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公开(公告)号：US20190243546A1
公开(公告)日：2019-08-08
申请号：US16390214
申请日：2019-04-22
IPC分类号： G06F3/06
CPC分类号： G06F3/064 , G06F3/0604 , G06F3/0611 , G06F3/0631 , G06F3/0649 , G06F3/067 , G06F3/0685
摘要： The invention is notably directed to computer-implemented methods and systems for managing datasets in a storage system. In such systems, it is assumed that a (typically small) subset of datasets are labeled with respect to their relevance, so as to be associated with respective relevance values. Essentially, the present methods determine, for each unlabeled dataset of the datasets, a respective probability distribution over a set of relevance values. From this probability distribution, a corresponding relevance value can be obtained. This probability distribution is computed based on distances (or similarities), in terms of metadata values, between said each unlabeled dataset and the labeled datasets. Based on their associated relevance values, datasets can then be efficiently managed in a storage system.
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公开(公告)号：US20190079689A1
公开(公告)日：2019-03-14
申请号：US15702807
申请日：2017-09-13
IPC分类号： G06F3/06
CPC分类号： G06F3/0634 , G06F3/0604 , G06F3/0611 , G06F3/0625 , G06F3/0689
摘要： Predictively selecting a subset of disks of a storage system to be spun-up, including providing metadata of data entities stored in the disks of the storage system, estimating the data entity access probabilities for a prediction time window based on said metadata, each data entity access probability being indicative for the probability of access to a certain data entity within said prediction time window, calculating disk access probabilities for a prediction time window based on the estimated probability of access of data entities, each disk access probability being indicative for the probability of access to a certain disk within said prediction time window, estimating the number of disks to be spun-up in a certain prediction time window, dynamically adapting the data entity threshold value and/or the disk access threshold value, selecting a subset of disks to be spun-up in the following prediction time window.
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公开(公告)号：US09858959B2
公开(公告)日：2018-01-02
申请号：US15425035
申请日：2017-02-06
CPC分类号： G11B15/689 , G06F3/0604 , G06F3/0611 , G06F3/0631 , G06F3/0653 , G06F3/0659 , G06F3/067 , G06F3/0685 , G06F3/0686 , G11B5/00813 , G11B17/04
摘要： A storage system is proposed which comprises a data storage device including a number N of removable storage media for storing data, with N≧2, and a number m of drives, with m≧1, wherein each of the m drives is configured to drive one of the removable storage media mounted to the drive. The storage system includes a server being coupled to the data storage device and configured to serve requests from clients, and a controller which is configured to control the data storage device to adaptively unmount the removable storage media based on a monitoring information of the requests at the data storage device, states of the drives, and states of the removable storage media.
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