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1. 发明申请

US20170357666A1 IMPLEMENTING QUEUES (FIFO) AND STACKS (FILO) ON TOP DISPERSED STORAGE 审中-公开
公开(公告)号：US20170357666A1
公开(公告)日：2017-12-14
申请号：US15670900
申请日：2017-08-07
申请人： International Business Machines Corporation
发明人： Andrew D. Baptist , Wesley B. Leggette , Jason K. Resch
IPC分类号： G06F17/30 , H04L29/08 , H04L29/12 , G06F11/07 , G06F11/10 , H04L29/06
CPC分类号： G06F16/182 , G06F11/0727 , G06F11/0793 , G06F11/1092 , G06F2211/1038 , H04L29/12009 , H04L67/1008 , H04L67/1034 , H04L2029/06054
摘要： A computing device includes an interface to communicate with a dispersed storage network (DSN), a memory, and a processing module. The computing device receives, from another computing device, a write queue entry request to facilitate storage of one or more queue entries of a queue in a set of storage units (SUs). The computing device dispersed error encodes at least a portion of the write queue entry request to generate a set of queue entry encoded slices (QEESs). The computing device generates a write request, based on the write queue entry request, that includes a slice name corresponding to a QEES of the set of QEESs that includes a queue entry identifier (ID) field that includes a timestamp field and/or an entry number of the write queue entry request. The computing device transmits the write request to the set of SUs to facilitate distributed storage of the set of QEESs.

2. 发明授权

US09619160B2 NVRAM data organization using self-describing entities for predictable recovery after power-loss 有权
公开(公告)号：US09619160B2
公开(公告)日：2017-04-11
申请号：US14839667
申请日：2015-08-28
申请人： NetApp, Inc.
发明人： Kayuri H. Patel , Hari Shankar
IPC分类号： G06G3/06 , G06F3/06 , G06F12/02 , G06F11/14
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0659 , G06F3/0688 , G06F11/1441 , G06F11/1471 , G06F12/0246 , G06F2211/1038
摘要： In one embodiment, a node coupled to a plurality of storage devices executes a storage input/output (I/O) stack having a plurality of layers including a persistence layer. A portion of non-volatile random access memory (NVRAM) is configured as one or more logs. The persistence layer cooperates with the NVRAM to employ the log to record write requests received from a host and to acknowledge successful receipt of the write requests to the host. The log has a set of entries, each entry including (i) write data of a write request and (ii) a previous offset referencing a previous entry of the log. After a power loss, the acknowledged write requests are recovered by replay of the log in reverse sequential order using the previous record offset in each entry to traverse the log.

3. 发明授权

US08849877B2 Object file system 有权
标题翻译：对象文件系统
公开(公告)号：US08849877B2
公开(公告)日：2014-09-30
申请号：US12873137
申请日：2010-08-31
申请人： Jan Olderdissen , Dan Olster , Craig Robertson , Doug Schafer , Dave Fellinger
发明人： Jan Olderdissen , Dan Olster , Craig Robertson , Doug Schafer , Dave Fellinger
IPC分类号： G06F17/30
CPC分类号： G06F17/30182 , G06F11/1076 , G06F17/30218 , G06F17/30864 , G06F2211/1038 , H04L67/1097
摘要： An object based file system for storing and accessing objects is disclosed. The file system may be implemented as a method in hardware, firmware, software, or a combination thereof. The method may include receiving from an application program an object write request. A selected storage node on which to store the object may be selected, including identifying a least busy storage node and/or a least full storage node. The object and the object write request may be sent to the selected storage node. A write success message may be received from the selected storage node. The successful writing of the object may be reported to the application program. An object identifier and object data may be stored in a database.
摘要翻译：公开了一种用于存储和访问对象的基于对象的文件系统。文件系统可以以硬件，固件，软件或其组合的方式实现。该方法可以包括从应用程序接收对象写入请求。可以选择在其上存储对象的所选择的存储节点，包括识别最不繁忙的存储节点和/或最小完整存储节点。对象和对象写入请求可以被发送到所选择的存储节点。可以从所选择的存储节点接收写入成功消息。对象的成功写入可能会报告给应用程序。对象标识符和对象数据可以存储在数据库中。

4. 发明申请

US20180307718A1 Automatic Adaptation of Parameters Controlling Database Savepoints 审中-公开
公开(公告)号：US20180307718A1
公开(公告)日：2018-10-25
申请号：US15496957
申请日：2017-04-25
申请人： SAP SE
发明人： Dirk Thomsen , Christoph Rottering , Werner Thesing
IPC分类号： G06F17/30 , G06F11/14 , G06F11/07 , G06F11/34 , G06F17/40
CPC分类号： G06F16/2358 , G06F11/0766 , G06F11/1471 , G06F11/1474 , G06F11/1662 , G06F11/2035 , G06F11/2097 , G06F11/3476 , G06F16/27 , G06F17/40 , G06F2201/80 , G06F2211/1038
摘要： Each of a plurality of database transactions are logged (i.e., recorded) in a log. Concurrent with the logging, one or more characteristics of the log are monitored. Thereafter, a savepoint is triggered when a pre-defined condition is met as indicated by the monitoring. The triggered savepoint can override or accelerate a savepoint that would have otherwise been triggered based on pre-specified parameters.

5. 发明申请

US20150370498A1 NVRAM DATA ORGANIZATION USING SELF-DESCRIBING ENTITIES FOR PREDICTABLE RECOVERY AFTER POWER-LOSS 审中-公开
标题翻译：电力损失后使用自我描述实体进行可预测恢复的NVRAM数据组织
公开(公告)号：US20150370498A1
公开(公告)日：2015-12-24
申请号：US14839667
申请日：2015-08-28
申请人： NetApp, Inc.
发明人： Kayuri H. Patel , Hari Shankar
IPC分类号： G06F3/06
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0659 , G06F3/0688 , G06F11/1441 , G06F11/1471 , G06F12/0246 , G06F2211/1038
摘要： In one embodiment, a node coupled to a plurality of storage devices executes a storage input/output (I/O) stack having a plurality of layers including a persistence layer. A portion of non-volatile random access memory (NVRAM) is configured as one or more logs. The persistence layer cooperates with the NVRAM to employ the log to record write requests received from a host and to acknowledge successful receipt of the write requests to the host. The log has a set of entries, each entry including (i) write data of a write request and (ii) a previous offset referencing a previous entry of the log. After a power loss, the acknowledged write requests are recovered by replay of the log in reverse sequential order using the previous record offset in each entry to traverse the log.
摘要翻译：在一个实施例中，耦合到多个存储设备的节点执行具有包括持续层的多个层的存储输入/输出（I / O）堆栈。非易失性随机存取存储器（NVRAM）的一部分被配置为一个或多个日志。持久层与NVRAM配合使用日志来记录从主机接收到的写入请求，并确认成功接收写入请求给主机。日志具有一组条目，每个条目包括（i）写入写入请求的数据，以及（ii）参考日志的先前条目的先前偏移量。断电后，通过使用每个条目中的前一个记录偏移遍历日志，以相反的顺序重播日志来恢复确认的写入请求。

6. 发明授权

US09189494B2 Object file system 有权
公开(公告)号：US09189494B2
公开(公告)日：2015-11-17
申请号：US14498923
申请日：2014-09-26
申请人： DataDirect Networks, Inc.
发明人： Jan Olderdissen , Dan Olster , Craig Robertson , Doug Schafer , Dave Fellinger
IPC分类号： G06F17/30 , G06F11/10 , H04L29/08
CPC分类号： G06F17/30182 , G06F11/1076 , G06F17/30218 , G06F17/30864 , G06F2211/1038 , H04L67/1097
摘要： An object based file system for storing and accessing objects is disclosed. The file system may be implemented as a method in hardware, firmware, software, or a combination thereof. The method may include receiving from an application program an object write request. A selected storage node on which to store the object may be selected, including identifying a least busy storage node and/or a least full storage node. The object and the object write request may be sent to the selected storage node. A write success message may be received from the selected storage node. The successful writing of the object may be reported to the application program.

7. 发明申请

US20150193156A1 NVRAM DATA ORGANIZATION USING SELF-DESCRIBING ENTITIES FOR PREDICTABLE RECOVERY AFTER POWER-LOSS 有权
标题翻译：电力损失后使用自我描述实体进行可预测恢复的NVRAM数据组织
公开(公告)号：US20150193156A1
公开(公告)日：2015-07-09
申请号：US14151443
申请日：2014-01-09
申请人： NetApp, Inc.
发明人： Kayuri H. Patel , Hari Shankar
IPC分类号： G06F3/06
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0659 , G06F3/0688 , G06F11/1441 , G06F11/1471 , G06F12/0246 , G06F2211/1038
摘要： In one embodiment, a node coupled to a plurality of solid state drives (SSDs) executes a storage input/output (I/O) stack having a plurality of layers. Write data associated with one or more write requests to the SSDs is stored in a volatile log. The write data is organized into one or more extents that are copied to the SSDs. The volatile log has a front-end and a set of records with metadata. The metadata includes a head offset referencing an initial record and a tail offset referencing a final record. A portion of the one or more write requests including the write data is copied to a non-volatile log maintained in a non-volatile random access memory (NVRAM). The front-end and the set of records from the volatile log are copied, but the head offset and the tail offset are not, to reduce an amount of metadata copied to the NVRAM.
摘要翻译：在一个实施例中，耦合到多个固态驱动器（SSD）的节点执行具有多个层的存储输入/输出（I / O）堆栈。将与一个或多个写请求相关联的数据写入SSD被存储在易失性日志中。写入数据被组织成一个或多个被复制到SSD的盘区。易失性日志具有前端和一组具有元数据的记录。元数据包括引用初始记录的头部偏移和引用最终记录的尾部偏移。包括写入数据的一个或多个写请求的一部分被复制到维护在非易失性随机存取存储器（NVRAM）中的非易失性日志。来自易失性日志的前端和一组记录被复制，但是头偏移和尾部偏移量不是，以减少复制到NVRAM的元数据量。

8. 发明授权

US09152330B2 NVRAM data organization using self-describing entities for predictable recovery after power-loss 有权
标题翻译： NVRAM数据组织使用自我描述实体在电力损失后可预测的恢复
公开(公告)号：US09152330B2
公开(公告)日：2015-10-06
申请号：US14151443
申请日：2014-01-09
申请人： NetApp, Inc.
发明人： Kayuri H. Patel , Hari Shankar
IPC分类号： G06F12/16 , G06F3/06 , G06F12/02
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0659 , G06F3/0688 , G06F11/1441 , G06F11/1471 , G06F12/0246 , G06F2211/1038
摘要： In one embodiment, a node coupled to a plurality of solid state drives (SSDs) executes a storage input/output (I/O) stack having a plurality of layers. Write data associated with one or more write requests to the SSDs is stored in a volatile log. The write data is organized into one or more extents that are copied to the SSDs. The volatile log has a front-end and a set of records with metadata. The metadata includes a head offset referencing an initial record and a tail offset referencing a final record. A portion of the one or more write requests including the write data is copied to a non-volatile log maintained in a non-volatile random access memory (NVRAM). The front-end and the set of records from the volatile log are copied, but the head offset and the tail offset are not, to reduce an amount of metadata copied to the NVRAM.
摘要翻译：在一个实施例中，耦合到多个固态驱动器（SSD）的节点执行具有多个层的存储输入/输出（I / O）堆栈。将与一个或多个写请求相关联的数据写入SSD被存储在易失性日志中。写入数据被组织成一个或多个被复制到SSD的盘区。易失性日志具有前端和一组具有元数据的记录。元数据包括引用初始记录的头部偏移和引用最终记录的尾部偏移。包括写入数据的一个或多个写请求的一部分被复制到维护在非易失性随机存取存储器（NVRAM）中的非易失性日志。来自易失性日志的前端和一组记录被复制，但是头偏移和尾部偏移量不是，以减少复制到NVRAM的元数据量。

9. 发明授权

US08806115B1 NVRAM data organization using self-describing entities for predictable recovery after power-loss 有权
标题翻译： NVRAM数据组织使用自我描述实体在电力损失后可预测的恢复
公开(公告)号：US08806115B1
公开(公告)日：2014-08-12
申请号：US14162289
申请日：2014-01-23
申请人： NetApp, Inc.
发明人： Kayuri H. Patel , Hari Shankar
IPC分类号： G06F12/00
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0659 , G06F3/0688 , G06F11/1441 , G06F11/1471 , G06F12/0246 , G06F2211/1038
摘要： In one embodiment, a parallel (e.g., tiered) logging technique is provided to deliver low latency acknowledgements of input/output (I/O) requests, such as write requests, while avoiding loss of data. Write data may be stored (copied) as a log in a portion of a dynamic random access memory and a non-volatile random access memory (NVRAM). The NVRAM may be configured as, e.g., a persistent write-back cache of the node, while parameters of the request may be stored in another portion of the NVRAM configured as the log (NVLog). The write data may be organized into separate variable length blocks or extents and “written back” out-of-order from the write-back cache to storage devices, such as SSDs, e.g., organized into a data container (intended destination of the write request). The write data may be preserved in the NVlog until each extent is safely stored on SSD.
摘要翻译：在一个实施例中，提供并行（例如，分层）记录技术以在避免数据丢失的同时传送诸如写入请求的输入/输出（I / O）请求的低等待时间确认。写数据可以作为日志存储（复制）在动态随机存取存储器和非易失性随机存取存储器（NVRAM）的一部分中。 NVRAM可以被配置为例如节点的持久回写缓存，而请求的参数可以被存储在被配置为日志（NVLog）的NVRAM的另一部分中。写数据可以被组织成单独的可变长度块或扩展区，并且从写回高速缓存“无回写”到存储设备（例如SSD），例如被组织成数据容器（写入的预期目的地请求）。写入数据可以保存在NVlog中，直到每个盘区被安全地存储在SSD上。

10. 发明申请

US20120054252A1 Object File System 有权
标题翻译：对象文件系统
公开(公告)号：US20120054252A1
公开(公告)日：2012-03-01
申请号：US12873137
申请日：2010-08-31
申请人： Jan Olderdissen , Dan Olster , Craig Robertson , Doug Schafer , Dave Fellinger
发明人： Jan Olderdissen , Dan Olster , Craig Robertson , Doug Schafer , Dave Fellinger
IPC分类号： G06F17/30
CPC分类号： G06F17/30182 , G06F11/1076 , G06F17/30218 , G06F17/30864 , G06F2211/1038 , H04L67/1097
摘要： An object based file system for storing and accessing objects is disclosed. The file system may be implemented as a method in hardware, firmware, software, or a combination thereof. The method may include receiving from an application program an object write request. A selected storage node on which to store the object may be selected, including identifying a least busy storage node and/or a least full storage node. The object and the object write request may be sent to the selected storage node. A write success message may be received from the selected storage node. The successful writing of the object may be reported to the application program. An object identifier and object data may be stored in a database.
摘要翻译：公开了一种用于存储和访问对象的基于对象的文件系统。文件系统可以以硬件，固件，软件或其组合的方式实现。该方法可以包括从应用程序接收对象写入请求。可以选择在其上存储对象的所选择的存储节点，包括识别最不繁忙的存储节点和/或最小完整存储节点。对象和对象写入请求可以被发送到所选择的存储节点。可以从所选择的存储节点接收写入成功消息。对象的成功写入可能会报告给应用程序。对象标识符和对象数据可以存储在数据库中。

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