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公开(公告)号：US10320905B2
公开(公告)日：2019-06-11
申请号：US14873541
申请日：2015-10-02
Applicant: Oracle International Corporation
Inventor： Donald Allan Graves, Jr. , Frederick S. Glover , Angelo Pruscino
Abstract: Techniques are provided for processing file system requests using a super cluster of clusters of nodes. Mirror file systems for processing the requests are exported through multiple clusters in the super cluster. A cluster may be assigned to an active or passive role for processing file system requests for a set of mirror file systems. A super cluster bundle, or mapping between a cluster in the super cluster and a file system resource on the set of mirror file systems, is created to process the file system requests. The super cluster bundle represents an amount of work assigned to the cluster. A super cluster bundle is reassigned from one cluster to another in response to a failover, or in response to a load balancing determination.
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公开(公告)号：US11860826B2
公开(公告)日：2024-01-02
申请号：US17502855
申请日：2021-10-15
Applicant: Oracle International Corporation
Inventor： Teng Wang , Diane Lebel , David Akers , Frederick S. Glover
IPC: G06F17/00 , G06F7/00 , G06F16/178 , G06F16/185
CPC classification number: G06F16/178 , G06F16/185
Abstract: In an embodiment, a computer stores source files and source clone files in a source filesystem. The source clone files are shallow copies of the source files, which initially share the same data blocks as the source files. A source file or a source clone file may eventually be modified, where some of the shared blocks are replaced by modified blocks. In a first phase, all data blocks of all source files that are not clones are replicated to a standby filesystem. A second phase compares each clone file on the source filesystem with its base file to detect a set of differed blocks. The second phase copies the differed blocks into the standby filesystem and, in the standby filesystem, applies the differed blocks to a corresponding clone file. Efficiency of keeping the standby filesystem synchronized with the source filesystem is improved by transferring, from the source filesystem to the standby filesystem, only one copy of only data blocks that are modified.
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公开(公告)号：US11042479B2
公开(公告)日：2021-06-22
申请号：US16242957
申请日：2019-01-08
Applicant: Oracle International Corporation
Inventor： Donald Allan Graves, Jr. , Frederick S. Glover , Alan David Brunelle , Pranav Dayananda Bagur , James Bensson
IPC: G06F12/0808 , G06F12/084
Abstract: Techniques are provided for providing a fully active and non-replicated block storage solution in a clustered filesystem that implements cache coherency. In a clustered filesystem where one or more data blocks are stored in a respective cache of each host node of a plurality of host nodes, a request is received at a host node of the plurality of host nodes from a client device to write the one or more data blocks to a shared storage device. In response to the request, the one or more data blocks are stored in the cache of the host node and a particular notification is sent to another host node of the plurality of host nodes that the one or more data blocks have been written to the shared storage device. In response to receiving the notification, the other host node invalidates a cached copy of the one or more data blocks in the respective cache of the other host node.
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公开(公告)号：US20180063229A1
公开(公告)日：2018-03-01
申请号：US15804203
申请日：2017-11-06
Applicant: Oracle International Corporation
Inventor： Frederick S. Glover , George Sanderson , Donald Allan Graves, JR.
CPC classification number: H04L67/1002 , G06F9/5083
Abstract: Techniques are provided for exporting one or more file systems through multiple nodes of a cluster. One or more of the exported file systems may be simultaneously exported through a single node of the cluster. A bundle, or mapping, between a node in the cluster and a file system, is created. The bundle represents an amount of work assigned to the node. A bundle is reassigned from one node to another node in the cluster in response to a failover, an addition of a new node to the cluster, or in response to a load balancing determination.
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5.发明授权公开(公告)号：US09477538B2
公开(公告)日：2016-10-25
申请号：US14486646
申请日：2014-09-15
Applicant: ORACLE INTERNATIONAL CORPORATION
Inventor： Frederick S. Glover , Diane Lebel , Thomas J. Engle , Angelo Pruscino
CPC classification number: G06F9/545 , G06F9/468 , G06F11/3034
Abstract: The approaches described herein provide support for application specific policies for conventional operating systems. In an embodiment, a kernel module representing a kernel subsystem is executed within an operating system's kernel. The kernel subsystem may be configured to respond to particular requests with one or more default actions. Additionally, the kernel subsystem may define a number of sub-modules which represent application specific policies that deviate from the default actions. Each sub-module may define one or more sets of conditions which indicate when the sub-module is applicable to a request and one or more sets of corresponding actions to take when the conditions are met. When an application sends a request to the kernel subsystem, the kernel subsystem determines whether the request meets the conditions of a particular sub-module. If the particular sub-module's conditions are met, the kernel subsystem performs the corresponding actions of the particular sub-module.
Abstract translation: 本文描述的方法为常规操作系统的应用特定策略提供支持。 在一个实施例中，表示内核子系统的内核模块在操作系统的内核中被执行。 内核子系统可以被配置为用一个或多个默认动作响应特定请求。 此外，内核子系统可以定义多个子模块，这些子模块表示偏离默认动作的应用程序特定策略。 每个子模块可以定义一个或多个条件集合，其指示子模块何时可应用于请求以及满足条件时要采取的一组或多组相应动作。 当应用程序向内核子系统发送请求时，内核子系统确定请求是否满足特定子模块的条件。 如果满足特定子模块的条件，则内核子系统执行特定子模块的相应动作。
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Patent Agency Ranking
公开(公告)号：US20230119364A1
公开(公告)日：2023-04-20
申请号：US17502855
申请日：2021-10-15
Applicant: Oracle International Corporation
Inventor： Teng Wang , Diane Lebel , David Akers , Frederick S. Glover
IPC: G06F16/178 , G06F16/185
Abstract: In an embodiment, a computer stores source files and source clone files in a source filesystem. The source clone files are shallow copies of the source files, which initially share the same data blocks as the source files. A source file or a source clone file may eventually be modified, where some of the shared blocks are replaced by modified blocks. In a first phase, all data blocks of all source files that are not clones are replicated to a standby filesystem. A second phase compares each clone file on the source filesystem with its base file to detect a set of differed blocks. The second phase copies the differed blocks into the standby filesystem and, in the standby filesystem, applies the differed blocks to a corresponding clone file. Efficiency of keeping the standby filesystem synchronized with the source filesystem is improved by transferring, from the source filesystem to the standby filesystem, only one copy of only data blocks that are modified
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公开(公告)号：US20220004525A1
公开(公告)日：2022-01-06
申请号：US16918822
申请日：2020-07-01
Applicant: Oracle International Corporation
Inventor： Donald Allan Graves, JR. , Alan David Brunelle , Frederick S. Glover
IPC: G06F16/182 , G06F16/176 , G06F16/13 , G06K9/62
Abstract: A heatmap is used to identify access patterns of ranges of data blocks at specific times, in order to optimize the size of the set of replicate nodes, for the purpose of reducing access latency. In an embodiment, the heatmap is used to enforce minimum replication of each data block such as when a replicate node crashes and is replaced. In an embodiment, the heatmap is used to adjust the minimum replication of a data block such as during and after a demand spike. In an embodiment, each data block is replicated on a minimum amount of respective replicate nodes of a cluster. A first node requests access to data blocks. Based on the requesting the access, a heatmap is modified, and the data blocks are replicated to the first node. Based on the heatmap, the minimum amount of nodes in the respective replicate nodes for at least one data block is adjusted.
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公开(公告)号：US20200218656A1
公开(公告)日：2020-07-09
申请号：US16242957
申请日：2019-01-08
Applicant: Oracle International Corporation
Inventor： Donald Allan Graves, JR. , Frederick S. Glover , Alan David Brunelle , Pranav Dayananda Bagur , James Bensson
IPC: G06F12/0808 , G06F12/084
Abstract: Techniques are provided for providing a fully active and non-replicated block storage solution in a clustered filesystem that implements cache coherency. In a clustered filesystem where one or more data blocks are stored in a respective cache of each host node of a plurality of host nodes, a request is received at a host node of the plurality of host nodes from a client device to write the one or more data blocks to a shared storage device. In response to the request, the one or more data blocks are stored in the cache of the host node and a particular notification is sent to another host node of the plurality of host nodes that the one or more data blocks have been written to the shared storage device. In response to receiving the notification, the other host node invalidates a cached copy of the one or more data blocks in the respective cache of the other host node.
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公开(公告)号：US09923958B1
公开(公告)日：2018-03-20
申请号：US15804203
申请日：2017-11-06
Applicant: Oracle International Corporation
Inventor： Frederick S. Glover , George Sanderson , Donald Allan Graves, Jr.
CPC classification number: H04L67/1002 , G06F9/5083
Abstract: Techniques are provided for exporting one or more file systems through multiple nodes of a cluster. One or more of the exported file systems may be simultaneously exported through a single node of the cluster. A bundle, or mapping, between a node in the cluster and a file system, is created. The bundle represents an amount of work assigned to the node. A bundle is reassigned from one node to another node in the cluster in response to a failover, an addition of a new node to the cluster, or in response to a load balancing determination.
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公开(公告)号：US20170177224A1
公开(公告)日：2017-06-22
申请号：US14975971
申请日：2015-12-21
Applicant: Oracle International Corporation
Inventor： Frederick S. Glover , Mark Longo , Joshua Smith
IPC: G06F3/06
CPC classification number: G06F3/0604 , G06F3/0608 , G06F3/061 , G06F3/0631 , G06F3/0647 , G06F3/0649 , G06F3/0653 , G06F3/0665 , G06F3/0685
Abstract: Techniques are provided for efficiently managing multi-tier storage systems with multiple types of storage class tiers encompassed in a single tiered range volume. In an embodiment, a storage manager creates a first virtual volume, where the storage manager exposes to a first tiered range volume client a first virtual address range for the first virtual volume that represents logical addresses of data blocks within storage portions from at least two storage class tiers of a set of multiple storage class tiers. Each storage portion represents an allocated range from a storage class tier. A storage class tier represents a set of multiple storage devices. The storage manager maintains a storage map of storage portions from multiple storage class tiers to the first virtual address range within the first virtual volume which includes mapping a first virtual address to a first logical address within a first storage portion from a first storage class tier and mapping a second virtual address to a second logical address within a second storage portion from a second storage class tier. A tiered range volume client of the first virtual volume stores a first data block at a first address within the first storage portion. Then the storage manager adds a third storage portion from a third storage class tier to the first virtual volume that maps to a third allocated range, where the third allocated range of the first virtual volume covers at least a portion of the first allocated range, including the first address where a first data block is stored. When adding a third storage portion, the storage manager modifies the storage map to map the first virtual address for the first data block to a location within the third storage portion. The storage manager then moves the first data block to the third storage portion within the third storage class tier that corresponds to a location corresponding to the first address within the third storage portion.
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