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1. 发明授权

US07917810B2 Method for detecting problematic disk drives and disk channels in a RAID memory system based on command processing latency 有权
标题翻译：基于命令处理延迟来检测RAID存储器系统中有问题的磁盘驱动器和磁盘通道的方法
公开(公告)号：US07917810B2
公开(公告)日：2011-03-29
申请号：US11907722
申请日：2007-10-17
申请人： Michael Piszczek , J. Gordon Manning , Thomas Pontos
发明人： Michael Piszczek , J. Gordon Manning , Thomas Pontos
IPC分类号： G06F11/00
CPC分类号： G06F11/008 , G06F11/1076 , G06F2211/1057
摘要： In order to detect problematic drives in random arrays of independent disks, the system measures the latency of executing command sets which are broadcast to all disks in the data storage system and the results are compared to identify which disks take substantially longer to complete the requests. Disks that take longer to complete requests are likely to be problematic and are candidates for further examination and replacement. The disks in each tier group are compared to determine if any disk in that group exhibits problems. Also, counters for each tier group are compared to determine if the problem is with the disk or with the channel of the tier group. The latency of each disk in the tier group is saved in a table to provide a histogram of the latency of the disks in the tier group. Histograms of the disks in a single tier group are compared to determine if a specific disk is problematic. Histograms of each tier group are compared to determine if a specific disk is problematic or all the disks on the same channel exhibit problems.
摘要翻译：为了检测独立磁盘的随机阵列中的有问题的驱动器，系统测量执行命令集的延迟，广播到数据存储系统中的所有磁盘，并比较结果，以确定哪些磁盘需要较长时间才能完成请求。需要更长时间才能完成请求的磁盘可能是有问题的，是进一步检查和更换的候选者。比较每个层组中的磁盘，以确定该组中的任何磁盘是否存在问题。此外，还会比较每个层组的计数器，以确定问题是与磁盘还是与层组的通道相关联。层组中每个磁盘的延迟保存在表中，以提供层组中磁盘的延迟的直方图。比较单层组中的磁盘的直方图，以确定特定磁盘是否有问题。比较每个层组的直方图以确定特定磁盘是否有问题，或者同一通道上的所有磁盘都会出现问题。

2. 发明授权

US08661218B1 Method for reducing latency in a solid-state memory system while maintaining data integrity 有权
标题翻译：在保持数据完整性的同时降低固态存储器系统中的延迟的方法
公开(公告)号：US08661218B1
公开(公告)日：2014-02-25
申请号：US13240507
申请日：2011-09-22
申请人： Michael Piszczek , J. Gordon Manning , Cedric Fernandes
发明人： Michael Piszczek , J. Gordon Manning , Cedric Fernandes
IPC分类号： G06F12/00
CPC分类号： G06F11/1088 , G06F11/108 , G06F2211/1057
摘要： A latency reduction method for read operations of an array of N solid-state storage devices having n solid-state storage devices for data storage and p solid-state storage devices for storing parity data is provided. Utilizing the parity generation engine fault tolerance for a loss of valid data from at least two of the N solid-state storage devices, the integrity of the data is determined when N−1 of the solid-state storage devices have completed executing a read command. If the data is determined to be valid, the missing data of the Nth solid-state storage device is reconstructed and the data transmitted to the requesting processor. By that arrangement the time necessary for the Nth solid-state storage device to complete execution of the read command is saved, thereby improving the performance of the solid-state memory system.
摘要翻译：提供了一种具有用于数据存储的n个固态存储装置和用于存储奇偶校验数据的p个固态存储装置的N个固态存储装置的阵列的读取操作的等待时间缩短方法。利用奇偶校验生成引擎容错从N个固态存储设备中的至少两个丢失有效数据，当固件存储设备的N-1完成执行读取命令时确定数据的完整性。如果数据被确定为有效，则重建第N固态存储设备的丢失数据，并将数据发送到请求处理器。通过这种安排，可以节省第N固态存储装置完成执行读命令所需的时间，从而提高固态存储器系统的性能。

3. 发明申请

US20090106602A1 Method for detecting problematic disk drives and disk channels in a RAID memory system based on command processing latency 有权
标题翻译：基于命令处理延迟来检测RAID存储器系统中有问题的磁盘驱动器和磁盘通道的方法
公开(公告)号：US20090106602A1
公开(公告)日：2009-04-23
申请号：US11907722
申请日：2007-10-17
申请人： Michael Piszczek , J. Gordon Manning , Thomas Pontos
发明人： Michael Piszczek , J. Gordon Manning , Thomas Pontos
IPC分类号： G06F11/26
CPC分类号： G06F11/008 , G06F11/1076 , G06F2211/1057
摘要： In order to detect problematic drives in random arrays of independent disks, the system measures the latency of executing command sets which are broadcast to all disks in the data storage system and the results are compared to identify which disks take substantially longer to complete the requests. Disks that take longer to complete requests are likely to be problematic and are candidates for further examination and replacement. The disks in each tier group are compared to determine if any disk in that group exhibits problems. Also, counters for each tier group are compared to determine if the problem is with the disk or with the channel of the tier group. The latency of each disk in the tier group is saved in a table to provide a histogram of the latency of the disks in the tier group. Histograms of the disks in a single tier group are compared to determine if a specific disk is problematic. Histograms of each tier group are compared to determine if a specific disk is problematic or all the disks on the same channel exhibit problems.
摘要翻译：为了检测独立磁盘的随机阵列中的有问题的驱动器，系统测量执行命令集的延迟，广播到数据存储系统中的所有磁盘，并比较结果，以确定哪些磁盘需要较长时间才能完成请求。需要更长时间才能完成请求的磁盘可能是有问题的，并且是进一步检查和更换的候选者。比较每个层组中的磁盘，以确定该组中的任何磁盘是否存在问题。此外，还会比较每个层组的计数器，以确定问题是与磁盘还是与层组的通道相关联。层组中每个磁盘的延迟保存在表中，以提供层组中磁盘的延迟的直方图。比较单层组中的磁盘的直方图，以确定特定磁盘是否有问题。比较每个层组的直方图以确定特定磁盘是否有问题，或者同一通道上的所有磁盘都会出现问题。

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