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1. 发明授权

US08751861B2 System and method for improved rebuild in RAID 有权
标题翻译：改进RAID重建的系统和方法
公开(公告)号：US08751861B2
公开(公告)日：2014-06-10
申请号：US13368725
申请日：2012-02-08
申请人： Naman Nair , Khai M. Le
发明人： Naman Nair , Khai M. Le
IPC分类号： G06F11/00
CPC分类号： G06F3/0611 , G06F3/0613 , G06F3/0659 , G06F3/0689 , G06F11/1092
摘要： The present disclosure is a system and method for improved RAID rebuilds under host IO conditions, that greatly improves rebuild times and prevents host IO starvation. A queue in a drive that is part of the RAID is used to store rebuild and host IO requests, with rebuild IOs issued to the head of the drive queue. Rebuild requests in the drive are delayed by a delay time. This delay ensures there is no unintended side effect of this invention that may result in host IO starvation for the RAID system. Delay is computed as a heuristic function from a plurality of variables, such as disk head response times, time allotted for rebuild, number of rebuild threads, drive behavior, rebuild IO profile, host IO profile including workload and locality, and a timeline of sequenced events, which in one preferred embodiment cycles every 70 seconds.
摘要翻译：本公开是用于在主机IO条件下改进RAID重建的系统和方法，其大大改善重建时间并防止主机IO饥饿。驱动器中作为RAID的一部分的队列用于存储重建和主机IO请求，并将重建IO发送到驱动器队列的头部。驱动器中的重建请求会延迟延迟时间。这种延迟确保了本发明没有意外的副作用，这可能导致RAID系统的主机IO饥饿。延迟被计算为来自多个变量的启发式函数，例如磁盘头响应时间，为重建分配的时间，重建线程数，驱动器行为，重建IO配置文件，主机IO配置文件，包括工作负载和位置，以及排序的时间线事件，其在一个优选实施例中每70秒循环一次。

2. 发明授权

US08473655B2 Method and apparatus for dividing a single serial enclosure management bit stream into multiple enclosure management bit streams and for providing the respective bit streams to respective midplanes 有权
标题翻译：用于将单个串行机箱管理位流分成多个机箱管理位流并用于将相应的位流提供给各个中间板的方法和装置
公开(公告)号：US08473655B2
公开(公告)日：2013-06-25
申请号：US13007687
申请日：2011-01-17
申请人： Jason M. Stuhlsatz , Naman Nair , Debal Krishna Mridha , Lakshmana Anupindi , Kakanuru Lakshmi Kanth Reddy
发明人： Jason M. Stuhlsatz , Naman Nair , Debal Krishna Mridha , Lakshmana Anupindi , Kakanuru Lakshmi Kanth Reddy
IPC分类号： G06F3/00 , G06F13/12 , G06F13/38 , G06F13/00
CPC分类号： G06F13/4022
摘要： A controller is provided that receives a single enclosure management (EM) serial bit stream from an expander or other device and divides the EM serial bit stream into multiple EM serial bit streams for delivery to multiple respective midplanes or backplanes. In this way, a separate EM serial bit stream is provided to each midplane or backplane without having to increase the number of ports that are available on the expander or other device that interfaces with the backplane or midplane.
摘要翻译：提供了一种控制器，其从扩展器或其他设备接收单个机箱管理（EM）串行比特流，并将EM串行比特流划分为多个EM串行比特流，以传送到多个相应的中间板或背板。以这种方式，将单独的EM串行比特流提供给每个中平面或背板，而不必增加在与背板或中平面接口的扩展器或其他设备上可用的端口数量。

3. 发明申请

US20120185626A1 METHOD AND APPARATUS FOR DIVIDING A SINGLE SERIAL ENCLOSURE MANAGEMENT BIT STREAM INTO MULTIPLE ENCLOSURE MANAGEMENT BIT STREAMS AND FOR PROVIDING THE RESPECTIVE BIT STREAMS TO RESPECTIVE MIDPLANES 有权
标题翻译：将单一序列封装管理位流分解为多个封装管理位流并将相应的位流提供给相应的中间体的方法和装置
公开(公告)号：US20120185626A1
公开(公告)日：2012-07-19
申请号：US13007687
申请日：2011-01-17
申请人： Jason M. Stuhlsatz , Naman Nair , Debal Krishna Mridha , Lakshmana Anupindi , Kakanuru Lakshmi Kanth Reddy
发明人： Jason M. Stuhlsatz , Naman Nair , Debal Krishna Mridha , Lakshmana Anupindi , Kakanuru Lakshmi Kanth Reddy
IPC分类号： G06F13/36 , G06F13/42
CPC分类号： G06F13/4022
摘要： A controller is provided that receives a single enclosure management (EM) serial bit stream from an expander or other device and divides the EM serial bit stream into multiple EM serial bit streams for delivery to multiple respective midplanes or backplanes. In this way, a separate EM serial bit stream is provided to each midplane or backplane without having to increase the number of ports that are available on the expander or other device that interfaces with the backplane or midplane.
摘要翻译：提供了一种控制器，其从扩展器或其他设备接收单个机箱管理（EM）串行比特流，并将EM串行比特流划分为多个EM串行比特流，以传送到多个相应的中间板或背板。以这种方式，将单独的EM串行比特流提供给每个中平面或背板，而不必增加在与背板或中平面接口的扩展器或其他设备上可用的端口数量。

4. 发明申请

US20090271657A1 Drive health monitoring with provisions for drive probation state and drive copy rebuild 有权
标题翻译：驾驶健康监测，规定驱动器试用状态和驱动器复制重建
公开(公告)号：US20090271657A1
公开(公告)日：2009-10-29
申请号：US12150426
申请日：2008-04-28
申请人： Craig C. McCombs , Naman Nair , Martin Jess , Jeremy Birzer
发明人： Craig C. McCombs , Naman Nair , Martin Jess , Jeremy Birzer
IPC分类号： G06F11/20 , G06F12/00 , G06F12/16
CPC分类号： G06F11/004 , G06F11/1662 , G06F11/2094 , G06F11/3419 , G06F11/3485 , G06F2201/81
摘要： The present disclosure is directed to a system and method for monitoring drive health.A method for monitoring drive health may comprise: a) conducting a predictive fault analysis for at least one drive of a RAID; and b) copying data from the at least one drive of the RAID to a replacement drive according to the predictive fault analysis.A system for monitoring drive health may comprise: a) means for conducting a predictive fault analysis for at least one drive of a RAID; and b) means for copying data from the at least one drive of the RAID to a replacement drive according to the predictive fault analysis.
摘要翻译：本公开涉及用于监视驾驶健康的系统和方法。用于监视驾驶员健康的方法可以包括：a）对至少一个RAID的驱动器进行预测性故障分析; 以及b）根据预测性故障分析将数据从RAID的至少一个驱动器复制到替换驱动器。用于监测驾驶员健康状况的系统可以包括：a）对RAID的至少一个驱动器进行预测故障分析的装置; 以及b）根据预测性故障分析将数据从RAID的至少一个驱动器复制到替换驱动器的装置。

5. 发明申请

US20130205166A1 SYSTEM AND METHOD FOR IMPROVED REBUILD IN RAID 有权
标题翻译： RAID中改进重建的系统和方法
公开(公告)号：US20130205166A1
公开(公告)日：2013-08-08
申请号：US13368725
申请日：2012-02-08
申请人： Naman Nair , Khai M. Le
发明人： Naman Nair , Khai M. Le
IPC分类号： G06F11/14 , G06F12/16
CPC分类号： G06F3/0611 , G06F3/0613 , G06F3/0659 , G06F3/0689 , G06F11/1092
摘要： The present disclosure is a system and method for improved RAID rebuilds under host IO conditions, that greatly improves rebuild times and prevents host IO starvation. A queue in a drive that is part of the RAID is used to store rebuild and host IO requests, with rebuild IOs issued to the head of the drive queue. Rebuild requests in the drive are delayed by a delay time. This delay ensures there is no unintended side effect of this invention that may result in host IO starvation for the RAID system. Delay is computed as a heuristic function from a plurality of variables, such as disk head response times, time allotted for rebuild, number of rebuild threads, drive behavior, rebuild IO profile, host IO profile including workload and locality, and a timeline of sequenced events, which in one preferred embodiment cycles every 70 seconds.
摘要翻译：本公开是用于在主机IO条件下改进RAID重建的系统和方法，其大大改善重建时间并防止主机IO饥饿。驱动器中作为RAID的一部分的队列用于存储重建和主机IO请求，并将重建IO发送到驱动器队列的头部。驱动器中的重建请求会延迟延迟时间。这种延迟确保了本发明没有意外的副作用，这可能导致RAID系统的主机IO饥饿。延迟被计算为来自多个变量的启发式函数，例如磁盘头响应时间，为重建分配的时间，重建线程数，驱动器行为，重建IO配置文件，包括工作负载和位置的主机IO配置文件以及排序的时间线事件，其在一个优选实施例中每70秒循环一次。

6. 发明授权

US08185784B2 Drive health monitoring with provisions for drive probation state and drive copy rebuild 有权
标题翻译：驾驶健康监测，规定驱动器试用状态和驱动器复制重建
公开(公告)号：US08185784B2
公开(公告)日：2012-05-22
申请号：US12150426
申请日：2008-04-28
申请人： Craig C. McCombs , Naman Nair , Martin Jess , Jeremy Birzer
发明人： Craig C. McCombs , Naman Nair , Martin Jess , Jeremy Birzer
IPC分类号： G06F11/00
CPC分类号： G06F11/004 , G06F11/1662 , G06F11/2094 , G06F11/3419 , G06F11/3485 , G06F2201/81
摘要： The present disclosure is directed to a system and method for monitoring drive health.A method for monitoring drive health may comprise: a) conducting a predictive fault analysis for at least one drive of a RAID; and b) copying data from the at least one drive of the RAID to a replacement drive according to the predictive fault analysis.A system for monitoring drive health may comprise: a) means for conducting a predictive fault analysis for at least one drive of a RAID; and b) means for copying data from the at least one drive of the RAID to a replacement drive according to the predictive fault analysis.
摘要翻译：本公开涉及用于监视驾驶健康的系统和方法。用于监视驾驶员健康的方法可以包括：a）对至少一个RAID的驱动器进行预测性故障分析; 以及b）根据预测性故障分析将数据从RAID的至少一个驱动器复制到替换驱动器。用于监测驾驶员健康状况的系统可以包括：a）对RAID的至少一个驱动器进行预测故障分析的装置; 以及b）根据预测性故障分析将数据从RAID的至少一个驱动器复制到替换驱动器的装置。

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