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1. 发明授权

US10534712B1 Service level agreement based management of a pre-cache module 有权
公开(公告)号：US10534712B1
公开(公告)日：2020-01-14
申请号：US15249504
申请日：2016-08-29
申请人： Infinidat LTD.
发明人： Qun Fan , Venu Nayar , Haim Helman
IPC分类号： G06F12/08 , G06F12/0831 , G06F12/0893 , G06F12/0873 , G06F12/0871
摘要： A method for service level agreement (SLA) allocation of resources of a cache memory of a storage system, the method may include monitoring, by a control layer of the storage system, actual performances of the storage system that are related to multiple logical volumes; calculating actual-to-required relationships between the actual performances and SLA defined performances of the multiple logical volumes; assigning caching priorities, to different logical volumes of the multiple logical volumes; wherein the assigning is based on, at least, the actual-to-required relationships; and managing, based on at least the caching priorities, a pre-cache memory module that is upstream to the cache module and is configured to store write requests that (i) are associated with one or more logical volumes of the different logical volumes and (ii) are received by the pre-cache memory module at points in time when the cache memory is full; wherein the managing comprises transferring one or more write requests from the pre-cache memory module to the cache memory when the cache memory is not full.

2. 发明授权

US10523766B2 Resolving path state conflicts in internet small computer system interfaces 有权
公开(公告)号：US10523766B2
公开(公告)日：2019-12-31
申请号：US14836980
申请日：2015-08-27
申请人： Infinidat LTD.
发明人： Eran Brown
IPC分类号： H04L29/08
摘要： A method for resolving conflicts related to states of multiple iSCSI sessions between an iSCSI initiator and an iSCSI target, the method may include: comparing between (a) iSCSI initiator information that is indicative of states of the multiple iSCSI sessions as viewed by the iSCSI initiator, and (b) iSCSI target information that is indicative of the states of the multiple iSCSI sessions as viewed by the iSCSI target; wherein the comparing is preceded by utilizing a non-iSCSI connection for gathering at least one of the iSCSI initiator information and the iSCSI target information; and participating in a resolution of a conflict related to a given iSCSI session out of the multiple iSCSI sessions when the comparing shows that a state of the given iSCSI session as indicated in the iSCSI initiator information conflicts with the state of the given iSCSI session as indicated in the iSCSI target information.

3. 发明授权

US10437787B2 Comparison of file system snapshots stored in a remote storage system using a network file system command 有权
公开(公告)号：US10437787B2
公开(公告)日：2019-10-08
申请号：US14088401
申请日：2013-11-24
申请人： Infinidat LTD.
发明人： Cyril Plisko , Alexander Goldberg , Leon Kull
IPC分类号： G06F16/178
摘要： A method for performing a comparison between first and second points in time snapshots of a file system entity, the method may include: (I) receiving by a storage system a command that was sent from a host computer, the command is network file system protocol compliant, wherein the command comprises (i) an operation code, and (ii) information about a virtual path, the virtual path that comprises (ii.a) first fields that comprise snapshot comparison parameters indicative of the first and second points in time snapshots of the file system entity, and (ii.b) a second field of a content that indicates that the command is a request to compare between the first and second points in time snapshots of the file system entity; (II) identifying, by a file system application hosted by the storage system and in response to the content of the second field of the virtual path, the command as including a request to compare between the first and second points in time snapshots of the file system entity; (III) comparing by the file system application the first and second points in time snapshots of the file system entity to provide a comparison result that is network file system protocol compliant; and (IV) sending by the storage system the comparison result to the host computer.

4. 发明授权

US10437508B1 Replicating a storage entity stored in a given storage system to multiple other storage systems 有权
公开(公告)号：US10437508B1
公开(公告)日：2019-10-08
申请号：US15672331
申请日：2017-08-09
申请人： Infinidat Ltd.
发明人： Yoav Medan
IPC分类号： G06F3/06
摘要： A storage system, a computer program product and method for replicating a storage entity to a group of storage systems. The method may include splitting the storage entity, by a given storage system, to provide storage entity portions; generating, by the given storage system, storage entity portions information for distributing the storage entity portions between all storage systems of the group so that each storage system of the group eventually receives the storage entity portions; transmitting the storage entity portions, from the given storage system, to storage systems of the group; wherein the transmitting comprises transmitting different storage entity portions from the given storage system to different storage systems of the group; sending, by the given storage system, the storage entity portions information to at least some storage systems of the group; and attempting to verify, by the given storage system, that all the storage systems of the group received all the storage entity portions.

5. 发明授权

US09703649B2 Automatic failover and failback between primary and secondary storage systems 有权
公开(公告)号：US09703649B2
公开(公告)日：2017-07-11
申请号：US14574416
申请日：2014-12-18
申请人： Infinidat LTD.
发明人： Alex Winokur
IPC分类号： G06F11/00 , G06F11/20 , G06F13/42
CPC分类号： G06F11/2005 , G06F11/2064 , G06F11/2069 , G06F11/2071 , G06F13/4221 , G06F2201/85
摘要： A method for managing a secondary storage system, the method may include performing a failover update, by the secondary storage system, of a status of at least one secondary path that couples a host computer to the secondary storage system thereby causing the host computer to prioritize sending IO requests to the secondary storage system over sending the IO requests to a primary storage system; wherein the failover update is triggered by a determination made by the secondary storage system that (a) the secondary storage system is, when making the determination, at an acceptable synchronization level with the primary storage system, and (b) the primary storage system is disconnected from the host computer; receiving, from the host computer, IO requests; and responding, by the secondary storage system, to the IO requests.

6. 发明授权

US09614909B2 High speed asynchronous remote mirroring 有权
公开(公告)号：US09614909B2
公开(公告)日：2017-04-04
申请号：US14092980
申请日：2013-11-28
申请人： Infinidat LTD.
发明人： Yechiel Yochai , Ayelet Shani , Efraim Zeidner
IPC分类号： H04L29/08 , G06F17/30 , G06F11/20
CPC分类号： H04L67/1095 , G06F11/2056 , G06F17/30067
摘要： A method for generating remote replicates of a logical volume at a remote site, the method comprises performing a plurality of replication cycles for generating a plurality (N) of points in time replicates of the logical volume at the remote site. Wherein for each positive integer n that ranges between 2 and N, a performing of a n'th replication cycle comprises: calculating in parallel and by multiple computerized resources of a storage system, multiple n'th point in time differences of multiple subsets of the logical volume; wherein n'th point in time differences of different subsets are calculated by different computerized resources; wherein a n'th point in time difference of a subset is a difference between an (n−1)'th point in time content of the subset and an n'th point in time content of the subset; and sending, in parallel, the multiple n'th point in time differences to the remote site.

7. 发明授权

US09542318B2 Temporary cache memory eviction 有权
标题翻译：临时高速缓存内存驱逐
公开(公告)号：US09542318B2
公开(公告)日：2017-01-10
申请号：US14602374
申请日：2015-01-22
申请人： Infinidat LTD.
发明人： Alex Goldberg
IPC分类号： G06F12/12 , G06F12/08
CPC分类号： G06F12/0833 , G06F12/121 , G06F12/128 , G06F2212/1016 , G06F2212/621
摘要： A method for managing a cache memory of a storage system, the method may include storing a first retrieval metadata of a first data that is cached in the cache memory, in response to an expected or an actual occurrence of a cache memory consuming event; wherein the cache memory consuming event involves storing second data in the cache memory for a second caching period; replacing, in the cache memory, the first data by the second data; wherein the second caching period is a fraction of a first caching period associated with the first data; and evicting the second data from the cache memory and retrieving the first data to the cache memory in response to an actual or estimated end of the cache memory consuming event; wherein the retrieving of the first data involves retrieving the first data from a storage unit that differs from the cache memory while using the first retrieval metadata.
摘要翻译：一种用于管理存储系统的高速缓冲存储器的方法，所述方法可以包括：存储缓存在高速缓冲存储器中的第一数据的第一检索元数据，以响应高速缓冲存储器消耗事件的预期或实际发生; 其中所述高速缓存存储器消耗事件涉及将第二数据存储在所述高速缓冲存储器中用于第二高速缓存周期; 在高速缓冲存储器中用第二数据替换第一数据; 其中所述第二缓存周期是与所述第一数据相关联的第一高速缓存周期的一部分; 以及响应于所述高速缓冲存储器消耗事件的实际或估计结束，从所述高速缓存存储器中取出所述第二数据并将所述第一数据检索到所述高速缓冲存储器; 其中所述检索所述第一数据涉及在使用所述第一检索元数据的同时从与所述高速缓冲存储器不同的存储单元检索所述第一数据。

8. 发明授权

US09304713B2 Storage system and a method for allocating disk drives to redundancy array of independent disks 有权
标题翻译：存储系统和分配磁盘驱动器到独立磁盘的冗余阵列的方法
公开(公告)号：US09304713B2
公开(公告)日：2016-04-05
申请号：US13775199
申请日：2013-02-24
申请人： Alexander Goldberg , Cyril Plisko , Yariv Yaari , Erez Rosenthal
发明人： Alexander Goldberg , Cyril Plisko , Yariv Yaari , Erez Rosenthal
IPC分类号： G06F12/00 , G06F3/06 , G06F12/02 , G06F11/10
CPC分类号： G06F3/0689 , G06F3/06 , G06F3/061 , G06F3/0611 , G06F3/0614 , G06F3/0619 , G06F3/0632 , G06F3/0646 , G06F11/1092 , G06F12/02
摘要： A storage system that may include a management module; and multiple disk drives; wherein the management module is arranged to allocate disk drives of the multiple disk drives to disk drive groups, each disk drive group corresponds to at least one redundancy array of independent disks (RAID) group of data in response to at least one out of: locations of the disk drives within disk drive enclosures; and expected or actual temperatures of the disk drives.
摘要翻译：可以包括管理模块的存储系统; 和多个磁盘驱动器; 其中所述管理模块被布置成将所述多个磁盘驱动器的磁盘驱动器分配给磁盘驱动器组，每个磁盘驱动器组响应于至少一个以外的位置对应于独立磁盘（RAID）数据组的至少一个冗余阵列：位置的磁盘驱动器内的磁盘驱动器; 以及磁盘驱动器的预期或实际温度。

9. 发明授权

US09229812B2 Layered failure protection scheme for protecting destaged data units 有权
标题翻译：分层故障保护方案，用于保护已故数据单元
公开(公告)号：US09229812B2
公开(公告)日：2016-01-05
申请号：US14176163
申请日：2014-02-10
申请人： Infinidat LTD.
发明人： Yechiel Yochai , Ido Ben-Tsion
IPC分类号： G11C29/00 , G06F11/10
CPC分类号： G06F11/1076 , G06F11/1096
摘要： A method that includes calculating multiple set parity units for multiple sets of data units that are cached in a storage system thereby providing a group of units that includes multiple sets of units. Each set of units includes a set of data units and at least one associated set parity unit that facilitate a reconstruction of the set of units when a first number of units of the set of units is lost. Calculating at least one group parity unit for the group of units. A combination of the at least one group parity unit and at least one associated set parity unit facilitate a reconstruction of the set of units upon a failure of a second number of units of the set of units. The second number of units of the set of units exceeds the first number of units of the set of units. Destaging the group of units and the at least one group parity unit to multiple disks of the storage system.
摘要翻译：一种方法，包括为存储系统中缓存的多组数据单元计算多组奇偶校验单元，从而提供包括多组单位的单元组。每组单元包括一组数据单元和至少一个相关联的设置奇偶校验单元，当该单元组的第一单元数丢失时，该单元有助于该单元组的重构。为该组单元计算至少一个组奇偶校验单元。所述至少一个组奇偶校验单元和至少一个相关联的设置奇偶校验单元的组合有助于在所述一组单元的第二数量的单元的故障时重建所述单元组。该组单位的第二单位数量超过该组单位的第一单位数。将该组单元和至少一个组奇偶单元分解到存储系统的多个磁盘。

10. 发明申请

US20150199236A1 MULTI-LEVEL DISK FAILURE PROTECTION 审中-公开
标题翻译：多级磁盘故障保护
公开(公告)号：US20150199236A1
公开(公告)日：2015-07-16
申请号：US14153095
申请日：2014-01-13
申请人： INFINIDAT LTD.
发明人： Mike Selivanov , Alexander Goldberg , Cyril Plisko
IPC分类号： G06F11/10
CPC分类号： G06F11/1096 , G06F2211/1009 , G06F2211/1057
摘要： According to an embodiment of the invention there may be provided a method for multi-level disk failure protection, the method may include: calculating first parity information by processing a first data entity that is cached in a cache memory of a storage system thereby providing a first level of disk failure protection; destaging the first data entity and the first parity information to first physical addresses mapped to multiple disks; calculating extra parity information by processing the first data entity, wherein a combination of the first and extra parity information provides an extra level of disk failure protection that exceeds the first level of disk failure protection; and destaging the extra parity information to at least one second physical address that differ from the first physical addresses, the at least one second physical address are included in a spare physical memory space that is not allocated, at a time of the destaging of the extra parity information, for storing data.
摘要翻译：根据本发明的实施例，可以提供一种用于多级磁盘故障保护的方法，该方法可以包括：通过处理缓存在存储系统的高速缓冲存储器中的第一数据实体来计算第一奇偶校验信息，从而提供第一级磁盘故障保护; 将第一数据实体和第一奇偶校验信息降级到映射到多个盘的第一物理地址; 通过处理所述第一数据实体来计算额外的奇偶校验信息，其中所述第一和所述奇偶校验信息的组合提供超过所述第一级磁盘故障保护的额外级别的磁盘故障保护; 以及将所述额外奇偶校验信息降级到与所述第一物理地址不同的至少一个第二物理地址，所述至少一个第二物理地址被包括在未分配的备用物理存储器空间中，奇偶校验信息，用于存储数据。

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