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1. 发明授权

US08782465B1 Managing drive problems in data storage systems by tracking overall retry time 有权
标题翻译：通过跟踪整个重试时间来管理数据存储系统中的驱动器问题
公开(公告)号：US08782465B1
公开(公告)日：2014-07-15
申请号：US13334636
申请日：2011-12-22
申请人： Robert P. Foley , Zhiqi Liu , Peter Puhov , David W. Harvey , Wayne E. Garrett, Jr.
发明人： Robert P. Foley , Zhiqi Liu , Peter Puhov , David W. Harvey , Wayne E. Garrett, Jr.
IPC分类号： G06F11/00
CPC分类号： G06F11/1443 , G06F11/008
摘要： A method is used in managing drive problems in data storage systems. It is determined, by a physical drive object, whether an I/O with a drive is able to be retried by another object. An overall retry time for the I/O is tracked. If the overall retry time is excessive, the drive is taken offline.
摘要翻译：一种方法用于管理数据存储系统中的驱动器问题。通过物理驱动对象确定是否能够由另一个对象重试具有驱动器的I / O。跟踪I / O的整体重试时间。如果整个重试时间过长，驱动器将脱机。

2. 发明授权

US09298493B1 Managing system I/O load 有权
标题翻译：管理系统I / O负载
公开(公告)号：US09298493B1
公开(公告)日：2016-03-29
申请号：US13172106
申请日：2011-06-29
申请人： Shay Harel , Peter Puhov
发明人： Shay Harel , Peter Puhov
IPC分类号： G06F9/46
CPC分类号： G06F9/46 , G06F9/4881 , G06F2209/485 , G06F2209/504 , Y02D10/22
摘要： A method is used in managing system I/O load. When a background operation is available to be executed on a processor core, it is determined whether a credit value associated with the processor core satisfies a memory use criterion. The background operation has a memory use requirement and is executed on the processor core when the credit value associated with the processor core satisfies the memory use criterion. The credit value associated with the processor core is modified by an amount corresponding to the memory use requirement.
摘要翻译：一种方法用于管理系统I / O负载。当可以在处理器核心上执行后台操作时，确定与处理器核心相关联的信用值是否满足存储器使用准则。背景操作具有存储器使用要求，并且当与处理器核心相关联的信用值满足存储器使用准则时，在处理器核上执行。与处理器核心相关联的信用值被修改为与存储器使用要求相对应的量。

3. 发明授权

US08843917B1 Techniques for parallel drive upgrade while maintaining host accessibility 有权
标题翻译：并行驱动升级技术，同时保持主机可访问性
公开(公告)号：US08843917B1
公开(公告)日：2014-09-23
申请号：US13737295
申请日：2013-01-09
申请人： Shay Harel , Peter Puhov , Wayne Garrett , Lili Chen , Zhiqi Liu
发明人： Shay Harel , Peter Puhov , Wayne Garrett , Lili Chen , Zhiqi Liu
IPC分类号： G06F9/44 , G06F9/445
CPC分类号： G06F8/65 , G06F8/654
摘要： Described are techniques for performing a firmware update. A drive management object determines one or more physical drives matching criteria of a first received request. The drive management object sends to provision drive objects a second request to update firmware on physical drives. Firmware update processing is performed independently for each physical drive. Each provision drive object is associated with one of the physical drives. Firmware update processing for said one physical drive includes determining whether to perform the firmware update at a current point in time; in response to determining to perform the firmware update at the current point in time, performing preparation processing; notifying, upon completion of said preparation processing, a physical drive object associated with said one physical drive to download the firmware update to the one physical drive; and resuming I/O operations to the one physical drive upon successfully completing the firmware update.
摘要翻译：描述了用于执行固件更新的技术。驱动器管理对象确定符合第一接收请求的标准的一个或多个物理驱动器。驱动器管理对象向物理驱动器发送第二个更新固件的请求。每个物理驱动器独立执行固件更新处理。每个配置驱动对象与其中一个物理驱动器相关联。所述一个物理驱动器的固件更新处理包括确定是否在当前时间点执行固件更新; 响应于确定在当前时间点执行固件更新，执行准备处理; 在完成所述准备处理时通知与所述一个物理驱动器相关联的物理驱动对象，以将所述固件更新下载到所述一个物理驱动器; 并在成功完成固件更新后将I / O操作恢复到一个物理驱动器。

4. 发明授权

US08375385B1 Techniques for parallel drive upgrade while maintaining host accessibility 有权
标题翻译：并行驱动升级技术，同时保持主机可访问性
公开(公告)号：US08375385B1
公开(公告)日：2013-02-12
申请号：US13329685
申请日：2011-12-19
申请人： Shay Harel , Peter Puhov , Wayne Garrett , Lili Chen , Zhiqi Liu
发明人： Shay Harel , Peter Puhov , Wayne Garrett , Lili Chen , Zhiqi Liu
IPC分类号： G06F9/44 , G06F9/445
CPC分类号： G06F8/65 , G06F8/654
摘要： Described are techniques for performing a firmware update. A drive management object determines one or more physical drives matching criteria of a first received request. The drive management object sends to provision drive objects a second request to update firmware on physical drives. Firmware update processing is performed independently for each physical drive. Each provision drive object is associated with one of the physical drives. Firmware update processing for said one physical drive includes determining whether to perform the firmware update at a current point in time; in response to determining to perform the firmware update at the current point in time, performing preparation processing; notifying, upon completion of said preparation processing, a physical drive object associated with said one physical drive to download the firmware update to the one physical drive; and resuming I/O operations to the one physical drive upon successfully completing the firmware update.
摘要翻译：描述了用于执行固件更新的技术。驱动器管理对象确定符合第一接收请求的标准的一个或多个物理驱动器。驱动器管理对象向物理驱动器发送第二个更新固件的请求。每个物理驱动器独立执行固件更新处理。每个配置驱动对象与其中一个物理驱动器相关联。所述一个物理驱动器的固件更新处理包括确定是否在当前时间点执行固件更新; 响应于确定在当前时间点执行固件更新，执行准备处理; 在完成所述准备处理时通知与所述一个物理驱动器相关联的物理驱动对象，以将所述固件更新下载到所述一个物理驱动器; 并在成功完成固件更新后将I / O操作恢复到一个物理驱动器。

5. 发明授权

US08566637B1 Analyzing drive errors in data storage systems 有权
标题翻译：分析数据存储系统中的驱动器错误
公开(公告)号：US08566637B1
公开(公告)日：2013-10-22
申请号：US12977962
申请日：2010-12-23
申请人： Peter Puhov , Shay Harel , Huzefa Hakimi , Lili Chen , Zhiqi Liu
发明人： Peter Puhov , Shay Harel , Huzefa Hakimi , Lili Chen , Zhiqi Liu
IPC分类号： G06F11/00
CPC分类号： G06F11/0727 , G06F11/076 , G06F11/0793
摘要： A method is used in analyzing drive errors in data storage systems. An error tag and total good I/O count are maintained for a drive. For each failed I/O, the following is performed. An error weight per error is retrieved. A new error tag is calculated from the error weight, a previous error tag, and the total good I/O count. An error ratio is calculated from the new error tag and a total I/O count. The error ratio is compared with thresholds. If one or more of the thresholds has been crossed, action is taken on the drive. The error tag is reduced as good I/O is produced.
摘要翻译：一种方法用于分析数据存储系统中的驱动器错误。为驱动器维护一个错误标签和完整的I / O计数。对于每个失败的I / O，执行以下操作。检索每个错误的错误重量。从错误权重，先前的错误标记和总的良好的I / O计数计算出新的错误标记。从新的错误标签和总计I / O计算出错误率。将误差率与阈值进行比较。如果已经越过了一个或多个阈值，则会对驱动器执行操作。错误标签减少，因为产生了良好的I / O。

6. 发明授权

US08250257B1 Techniques for balancing system I/O load 有权
标题翻译：平衡系统I / O负载的技术
公开(公告)号：US08250257B1
公开(公告)日：2012-08-21
申请号：US12928283
申请日：2010-12-08
申请人： Shay Harel , Peter Puhov
发明人： Shay Harel , Peter Puhov
IPC分类号： G06F3/00 , G06F13/00
CPC分类号： H04L67/1097 , G06F3/061 , G06F3/0659 , G06F3/0689 , G06F2206/1012
摘要： Described are techniques for performing I/O operations. A graph is received including a plurality of nodes and edges. The graph includes a first level with a root node and one or more other levels of nodes. Each edge has a value indicating an I/O load metric. A thread associated with a first node determines whether to perform a background I/O operation directed to a first device and having a first priority. The first priority is compared to a first value of an I/O load metric. The first value is determined in accordance with criteria including a maximum usage of an I/O buffer of the first device and priorities of other I/O operations directed to the first device. If it is determined that the background I/O operation is to be performed, the background I/O operation is forwarded for processing on an I/O path having a corresponding path in the graph.
摘要翻译：描述了执行I / O操作的技术。接收包括多个节点和边缘的图形。该图包括具有根节点和一个或多个其他级别节点的第一级。每个边都有一个值表示I / O负载指标。与第一节点相关联的线程确定是否执行指向第一设备并具有第一优先级的后台I / O操作。将第一个优先级与I / O负载度量的第一个值进行比较。根据包括第一设备的I / O缓冲器的最大使用量和针对第一设备的其他I / O操作的优先级的标准确定第一值。如果确定要执行背景I / O操作，则后台I / O操作被转发用于在图中具有相应路径的I / O路径上进行处理。

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