公开(公告)号：US10664169B2

公开(公告)日：2020-05-26

申请号：US15192255

申请日：2016-06-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Johnu George ,  Kai Zhang ,  Marc Solanas Tarre ,  Debojyoti Dutta ,  Manoj Sharma

IPC: G06F3/06

Abstract: Approaches are disclosed for improving performance of logical disks. A logical disk can comprise several storage devices. In an object storage system (OSS), when a logical disk stores a file, fragments of the file are stored distributed across the storage devices. Each of the fragments of the file is asymmetrically stored in (write) and retrieved from (read) the storage devices. The performance of the logical disk is improved by reconfiguring one or more of the storage devices based on an influence that each of the storage devices has on performance of the logical disk and the asymmetric read and write operations of each of the storage devices. For example, latency of the logical disk can be reduced by reconfiguring one or more of the plurality of storage disks based on a proportion of the latency of the logical device that is attributable to each of the plurality of storage devices.

公开(公告)号：US10476982B2

公开(公告)日：2019-11-12

申请号：US15154141

申请日：2016-05-13

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Marc Solanas Tarre ,  Ralf Rantzau ,  Debojyoti Dutta ,  Manoj Sharma

IPC: H04L12/861 ,  H04L29/08 ,  G06F9/00

Abstract: Approaches are disclosed for distributing messages across multiple data centers where the data centers do not store messages using a same message queue protocol. In some embodiment, a network element translates messages from a message queue protocol (e.g., Kestrel, RABBITMQ, APACHE Kafka, and ACTIVEMQ) to an application layer messaging protocol (e.g., XMPP, MQTT, WebSocket protocol, or other application layer messaging protocols). In other embodiments, a network element translates messages from an application layer messaging protocol to a message queue protocol. Using the new approaches disclosed herein, data centers communicate using, at least in part, application layer messaging protocols to disconnect the message queue protocols used by the data centers and enable sharing messages between messages queues in the data centers. Consequently, the data centers can share messages regardless of whether the underlying message queue protocols used by the data centers (and the network devices therein) are compatible with one another.

公开(公告)号：US20170010931A1

公开(公告)日：2017-01-12

申请号：US14794676

申请日：2015-07-08

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Amit Agarwal ,  Debojyoti Dutta ,  Johnu George ,  Manoj Sharma ,  Kai Zhang ,  Marc Solanas Tarre ,  Aparupa Das Gupta ,  Yathiraj B. Udupi ,  Seth Mason

IPC: G06F11/07 ,  H04L29/08

CPC classification number: G06F11/079 ,  G06F11/0709 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/0787 ,  G06F11/0793 ,  H04L67/1034 ,  H04L67/1097

Abstract: A method for assisting evaluation of anomalies in a distributed storage system is disclosed. The method includes a step of monitoring at least one system metric of the distributed storage system. The method further includes steps of maintaining a listing of patterns of the monitored system metric comprising patterns which previously did not result in a failure within one or more nodes of the distributed storage system, and, based on the monitoring, identifying a pattern (i.e., a time series motif) of the monitored system metric as a potential anomaly in the distributed storage system. The method also includes steps of automatically (i.e. without user input) performing a similarity search to determine whether the identified pattern satisfies one or more predefined similarity criteria with at least one pattern of the listing, and, upon positive determination, excepting the identified pattern from being identified as the potential anomaly.

Abstract translation: 公开了一种用于辅助评估分布式存储系统中的异常的方法。 该方法包括监视分布式存储系统的至少一个系统度量的步骤。 该方法还包括以下步骤：维护所监视的系统度量的模式的列表，其包括先前不会在分布式存储系统的一个或多个节点内导致故障的模式，并且基于该监视，识别模式（即， 监控系统度量的时间序列主题作为分布式存储系统中的潜在异常。 该方法还包括自动执行相似性搜索（即，不进行用户输入）以确定所识别的模式是否满足具有列表的至少一种模式的一个或多个预定义相似性标准的步骤，并且在正确定义之后，除了所识别的模式 被确定为潜在的异常。

公开(公告)号：US20170010930A1

公开(公告)日：2017-01-12

申请号：US14794650

申请日：2015-07-08

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Debojyoti Dutta ,  Manoj Sharma ,  Yathiraj B. Udupi ,  Alexander Jonas-Holden ,  Aparupa Das Gupta ,  Amit Agarwal ,  Seth Mason

IPC: G06F11/07

CPC classification number: G06F11/079 ,  G06F11/0709 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/0772

Abstract: A method for assisting evaluation of anomalies in a distributed storage system is disclosed. The method includes monitoring at least one system metric of the system and creating a mapping between values and/or patterns of the system metric and one or more services configured to generate logs for the system. The method further includes detecting a potential anomaly in the system based on the monitoring, the potential anomaly being associated with a value and/or a pattern of the monitored system metric. The method also includes using the mapping to identify one or more logs associated with the potential anomaly, displaying a graphical representation of at least a part of monitoring the system metric, the graphical representation indicating the potential anomaly, and providing an overlay over the graphical representation, the overlay comprising an indicator of a number of the logs associated with the potential anomaly.

Abstract translation: 公开了一种用于辅助评估分布式存储系统中的异常的方法。 该方法包括监视系统的至少一个系统度量并且创建系统度量的值和/或模式之间的映射以及被配置为生成用于系统的日志的一个或多个服务。 该方法还包括基于监视来检测系统中的潜在异常，所述潜在异常与监视的系统度量的值和/或模式相关联。 该方法还包括使用映射来识别与潜在异常相关联的一个或多个日志，显示监视系统度量的至少一部分的图形表示，指示潜在异常的图形表示，以及在图形表示上提供覆盖 ，所述覆盖层包括与所述潜在异常相关联的多个日志的指示符。