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1. 发明授权

US08655851B2 Method and system for performing a clean file lock recovery during a network filesystem server migration or failover 有权
标题翻译：在网络文件系统服务器迁移或故障切换期间执行干净的文件锁恢复的方法和系统
公开(公告)号：US08655851B2
公开(公告)日：2014-02-18
申请号：US13083013
申请日：2011-04-08
申请人： Kedar Patwardhan , Rachit Chadha , Sushil Patil
发明人： Kedar Patwardhan , Rachit Chadha , Sushil Patil
IPC分类号： G06F17/30
CPC分类号： G06F17/30079 , G06F17/30171 , G06F17/30203
摘要： A method for file lock recovery in a distributed computer system. The method includes executing a distributed computer system having a plurality of nodes comprising a cluster, and initiating a network file system server migration from one node of the cluster to a different node of the cluster. A migration count is incremented, wherein the migration count is stored at each of the nodes comprising the cluster. File lock services are paused at each of the nodes comprising the cluster. The network file system server migration is completed at the different node of the cluster. The migration count is then decremented in response to the completion. File lock services are then resumed at each of the nodes comprising cluster.
摘要翻译：一种在分布式计算机系统中进行文件锁恢复的方法。该方法包括执行具有包括集群的多个节点的分布式计算机系统，以及启动网络文件系统服务器从集群的一个节点迁移到集群的不同节点。迁移计数增加，其中迁移计数被存储在包括集群的每个节点处。在包含群集的每个节点上暂停文件锁服务。网络文件系统服务器迁移在集群的不同节点完成。然后，迁移计数将根据完成次数递减。然后在包含群集的每个节点上恢复文件锁服务。

2. 发明授权

US09529812B1 Timestamp handling for partitioned directories 有权
标题翻译：分区目录的时间戳处理
公开(公告)号：US09529812B1
公开(公告)日：2016-12-27
申请号：US13104150
申请日：2011-05-10
申请人： Freddy James , Kedar Patwardhan , Sushil Patil , Anindya Banerjee
发明人： Freddy James , Kedar Patwardhan , Sushil Patil , Anindya Banerjee
IPC分类号： G06F17/30
CPC分类号： G06F17/30106
摘要： Various systems and methods use advisory metadata to track the status of file system objects. For example, one method can involve accessing a first item of advisory metadata, which is associated with a namespace-visible parent directory and identifies a first transaction and a first time, and accessing a second item of advisory metadata, which is also associated with the namespace-visible parent directory and identifies a second transaction and a second time. The namespace visible parent directory includes multiple namespace-hidden directories. The method can then select a time value of the advisory metadata for the namespace-visible parent directory, based upon the first item and the second item. The method can be performed by a computing device implementing a file system.
摘要翻译：各种系统和方法使用咨询元数据来跟踪文件系统对象的状态。例如，一种方法可以涉及访问第一项咨询元数据，该第一项与名称空间可见的父目录相关联，并且识别第一事务和第一次，以及访问第二项咨询元数据，该第二项还与命名空间可见的父目录，并标识第二个事务和第二次事务。命名空间可见父目录包含多个命名空间隐藏目录。然后，该方法可以基于第一项和第二项来选择名称空间可见父目录的咨询元数据的时间值。该方法可以由实现文件系统的计算设备执行。

3. 发明授权

US09177177B1 Systems and methods for securing storage space 有权
标题翻译：用于确保存储空间的系统和方法
公开(公告)号：US09177177B1
公开(公告)日：2015-11-03
申请号：US13645372
申请日：2012-10-04
申请人： Sushil Patil , Suprio Das , Sanjay Jain , Anirban Mukherjee
发明人： Sushil Patil , Suprio Das , Sanjay Jain , Anirban Mukherjee
IPC分类号： G06F13/00 , G06F21/78 , G06F21/12
CPC分类号： G06F21/6218 , G06F21/121 , G06F21/78 , G06F2221/2143
摘要： A computer-implemented method for securing storage space may include 1) identifying a block map that indicates whether each of a plurality of blocks within a storage system is to return zeroed data in response to read operations, 2) identifying a read operation directed to a block of the storage system that includes non-zeroed data, 3) determining, in response to identifying the read operation, that the block map indicates that the block is to return zeroed data in response to the read operation, and 4) returning zeroed data in response to the read operation based on determining that the block map indicates that the block is to return zeroed data. Various other methods, systems, and computer-readable media are also described.
摘要翻译：用于保护存储空间的计算机实现的方法可以包括：1）识别块映射，其指示存储系统内的多个块中的每个是否响应于读取操作返回归零的数据; 2）识别针对一个包括非零数据的存储系统块，3）响应于识别读取操作确定块映射指示块响应于读取操作返回归零数据，以及4）返回归零数据响应于基于确定块映射指示块要返回归零数据的读取操作。还描述了各种其它方法，系统和计算机可读介质。

4. 发明申请

US20120259819A1 METHOD AND SYSTEM FOR PERFORMING A CLEAN FILE LOCK RECOVERY DURING A NETWORK FILESYSTEM SERVER MIGRATION OR FAILOVER 有权
标题翻译：在网络文件系统服务器移动或故障时执行清洁文件锁定恢复的方法和系统
公开(公告)号：US20120259819A1
公开(公告)日：2012-10-11
申请号：US13083013
申请日：2011-04-08
申请人： Kedar Patwardhan , Rachit Chadha , Sushil Patil
发明人： Kedar Patwardhan , Rachit Chadha , Sushil Patil
IPC分类号： G06F17/30
CPC分类号： G06F17/30079 , G06F17/30171 , G06F17/30203
摘要： A method for file lock recovery in a distributed computer system. The method includes executing a distributed computer system having a plurality of nodes comprising a cluster, and initiating a network file system server migration from one node of the cluster to a different node of the cluster. A migration count is incremented, wherein the migration count is stored at each of the nodes comprising the cluster. File lock services are paused at each of the nodes comprising the cluster. The network file system server migration is completed at the different node of the cluster. The migration count is then decremented in response to the completion. File lock services are then resumed at each of the nodes comprising cluster.
摘要翻译：一种在分布式计算机系统中进行文件锁恢复的方法。该方法包括执行具有包括集群的多个节点的分布式计算机系统，以及启动网络文件系统服务器从集群的一个节点迁移到集群的不同节点。迁移计数增加，其中迁移计数被存储在包括集群的每个节点处。在包含群集的每个节点上暂停文件锁服务。网络文件系统服务器迁移在集群的不同节点完成。然后，迁移计数将根据完成次数递减。然后在包含群集的每个节点上恢复文件锁服务。

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