公开(公告)号：US20150248443A1

公开(公告)日：2015-09-03

申请号：US14635261

申请日：2015-03-02

Applicant: Plexistor Ltd.

Inventor： Amit GOLANDER

IPC: G06F17/30 ,  H04L12/911 ,  H04L29/08

CPC classification number: G06F16/22 ,  G06F16/182 ,  G06F16/185 ,  G06F16/2455 ,  H04L47/70 ,  H04L67/104 ,  H04L67/1097

Abstract: A method of accessing a memory record in distributed network storage, comprising: storing a plurality of memory records in a plurality of network nodes, each stores a file system segment of a file system mapping the memory records, each file system segment maps a subset of the memory records; receiving, by a storage managing module of a first network node, a request for accessing one of the memory records from an application executed in the first network node; querying a file system segment stored in the first network node for the memory record; when the memory record is missing, querying for an address of a second network node, wherein the memory record is stored in the second network node; and providing said first network node with an access to said memory record at said second network node via a network according to said address.

Abstract translation: 一种访问分布式网络存储器中的存储器记录的方法，包括：在多个网络节点中存储多个存储器记录，每个存储映射存储器记录的文件系统的文件系统段，每个文件系统段映射一个 记忆记录; 由第一网络节点的存储管理模块接收从在第一网络节点中执行的应用访问存储器记录之一的请求; 查询存储在第一网络节点中的用于存储器记录的文件系统段; 当所述存储器记录丢失时，查询第二网络节点的地址，其中所述存储器记录被存储在所述第二网络节点中; 以及根据所述地址，经由网络向所述第一网络节点提供对所述第二网络节点处的所述存储器记录的访问。

公开(公告)号：US20170177644A1

公开(公告)日：2017-06-22

申请号：US15158642

申请日：2016-05-19

Applicant: Plexistor Ltd.

Inventor： Amit GOLANDER ,  Boaz HARROSH ,  Sagi MANOLE

IPC: G06F17/30

CPC classification number: G06F16/13 ,  G06F16/9027

Abstract: A computer implemented method for updating a file system tree structure through an atomic operation, comprising one or more hardware processor adapted for designating a file system comprising a plurality of files arranged in a plurality of tree structures, the file system is based on a direct mapping persistent memory, receiving instructions from a client to alter an altered file of the plurality of files, creating an alternate tree structure to apply the alteration in case the alteration involves a non-atomic tree structure operation to an original tree structure of the plurality of tree structures containing the altered file and committing the alteration to the file system through an atomic operation.

公开(公告)号：US20170177447A1

公开(公告)日：2017-06-22

申请号：US14970611

申请日：2015-12-16

Applicant: Plexistor Ltd.

Inventor： Amit GOLANDER ,  Boaz HARROSH ,  Sagi MANOLE

IPC: G06F11/14 ,  G06F17/30

Abstract: A persistent memory based distributed-journal file system, comprising: 1) Direct mapped persistent memory unit hosting at least a subset of a file system which contains a plurality of files each associated with a metadata record and a self-journal record. 2) A memory storing a program code. 3) One or more processors coupled to the persistent memory unit and the memory for executing the program code which comprises: (a) Creating a resources dataset which maps characteristics of the file system by analyzing the files' metadata records. (b) Receiving an alteration request to alter altered file(s) of the plurality of files. (c) Determining if the alteration is an atomic alteration which is applied to the file system in an atomic operation. (d) Logging an indication of the alteration in the respective self-journal record of the altered file(s) for non-atomic alteration. (e) Applying the alteration in the file system.

公开(公告)号：US20150249618A1

公开(公告)日：2015-09-03

申请号：US14635236

申请日：2015-03-02

Applicant: Plexistor Ltd.

Inventor： Amit GOLANDER

IPC: H04L12/911 ,  H04L29/08

CPC classification number: G06F17/30312 ,  G06F17/30194 ,  G06F17/30221 ,  G06F17/30477 ,  H04L47/70 ,  H04L67/104 ,  H04L67/1097

Abstract: A method of negotiating memory record ownership between network nodes, comprising: storing in a memory of a first network node a subset of a plurality of memory records and one of a plurality of file system segments of a file system mapping the memory records; receiving a request from a second network node to access a memory record of the memory records subset; identifying the memory record by using the file system segment; deciding, by a placement algorithm, whether to relocate the memory record, from the memory records subset to a second subset of the plurality of memory records stored in a memory of the second network node; when a relocation is not decided, providing remote access of the memory record via a network to the second network node; and when a relocation is decided, relocating the memory record via the network for management by the second network node.

Abstract translation: 一种在网络节点之间协商存储器记录所有权的方法，包括：在第一网络节点的存储器中存储多个存储器记录的子集，以及映射存储器记录的文件系统的多个文件系统段中的一个; 接收来自第二网络节点的访问所述存储器记录子集的存储器记录的请求; 通过使用文件系统段识别内存记录; 通过布局算法来决定是否将存储器记录从存储器记录子集重定位到存储在第二网络节点的存储器中的多个存储器记录的第二子集; 当重定位未被决定时，经由网络向第二网络节点提供存储器记录的远程访问; 并且当重新定位时，经由网络重新定位存储器记录以由第二网络节点进行管理。