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1. 发明授权

US09007710B1 Rewrite operation for recording bands 有权
标题翻译：重写录音带的操作
公开(公告)号：US09007710B1
公开(公告)日：2015-04-14
申请号：US14470340
申请日：2014-08-27
申请人： Seagate Technology LLC
发明人： Xiong Liu , Brian T Edgar , Feng Shen , WenXiang Xie , ThanZaw Thein
IPC分类号： G11B5/09 , G11B20/12 , G11B20/10
CPC分类号： G06F3/061 , G06F3/0655 , G06F3/0677 , G06F3/0679 , G06F2206/1014 , G11B20/10527 , G11B20/1217 , G11B2020/1238
摘要： Systems and methods are disclosed for performing a rewrite operation on recording bands of a data storage medium. In some embodiments, data may be read from a target band including a plurality of tracks, and modified. A portion less than all of the modified data is stored to a nonvolatile memory, and all of the modified data is written to the target band. In some embodiments, modified data corresponding to the first two tracks of the target band is stored to the nonvolatile memory, and modified data corresponding to the third track of the target band is written back to the first physical track. Each track may be written in order, ending with the modified data corresponding to the first two tracks. The result may be that data for each track in the band has shifted up two tracks, with data for the first two tracks moved to the end.
摘要翻译：公开了用于对数据存储介质的记录带进行重写操作的系统和方法。在一些实施例中，可以从包括多个轨道的目标频带读取数据并进行修改。小于所有修改数据的部分被存储到非易失性存储器中，并且将所有修改的数据写入目标频带。在一些实施例中，对应于目标频带的前两个磁道的修改数据被存储到非易失性存储器，并且对应于目标频带的第三磁道的修改数据被写回到第一物理磁道。可以按顺序写入每个轨道，以对应于前两个轨道的修改数据结束。结果可能是频带中的每个轨道的数据已经向上移动两个轨道，其中前两个轨道的数据移动到最后。

2. 发明授权

US09377956B1 Rewrite operation for recording bands 有权
标题翻译：重写录音带的操作
公开(公告)号：US09377956B1
公开(公告)日：2016-06-28
申请号：US14671277
申请日：2015-03-27
申请人： Seagate Technology LLC
发明人： Xiong Liu , Brian T Edgar , Feng Shen , WenXiang Xie , ThanZaw Thein
IPC分类号： G11B5/09 , G06F3/06
CPC分类号： G06F3/061 , G06F3/0655 , G06F3/0677 , G06F3/0679 , G06F2206/1014 , G11B20/10527 , G11B20/1217 , G11B2020/1238
摘要： Systems and methods are disclosed for performing rewrite operations on recording bands of a data storage medium. In some embodiments, a storage device may receive a write request to be recorded to a band including a plurality of contiguous data storage areas (e.g. tracks) spanning from a first storage area to a last storage area. The device may determine a target area of the band to which to record the data, and perform a partial rewrite operation on less than all data storage areas of the band when the target area is not within a threshold number of data storage areas from the first storage area. In some embodiments, the rewrite operation may include reading data recorded in a first arrangement from the target band, modifying the data, and recording the modified data to the band in a second arrangement including a physical recording order different than the first arrangement.
摘要翻译：公开了用于对数据存储介质的记录带执行重写操作的系统和方法。在一些实施例中，存储设备可以接收要被记录到包括跨越从第一存储区域到最后存储区域的多个相邻数据存储区域（例如，轨道）的频带的写入请求。设备可以确定要记录数据的频带的目标区域，并且当目标区域不在来自第一个的数据存储区域的阈值数目内时，对小于该频带的所有数据存储区域的部分重写操作执行储藏区域。在一些实施例中，重写操作可以包括从目标频带读取记录在第一布置中的数据，修改数据，并以包括不同于第一布置的物理记录顺序的第二布置将修改的数据记录到频带。

3. 发明申请

US20180189185A1 MEDIA CACHE BAND CLEANING 审中-公开
公开(公告)号：US20180189185A1
公开(公告)日：2018-07-05
申请号：US15394558
申请日：2016-12-29
申请人： Seagate Technology LLC
发明人： CheeHou Peng , ThanZaw Thein , WenXiang Xie , PohSeng Lim
IPC分类号： G06F12/0891
CPC分类号： G06F12/0873 , G06F12/0868 , G06F2201/885 , G06F2212/1024 , G06F2212/1044 , G06F2212/462 , G06F2212/502
摘要： A data storage device includes a media cache and a main data store optimized for sequential reads and organized into bands. When the data storage device receives a read request from a host computing system, the requested data may be fragmented across the media cache and the main data store, causing constrained read throughput. Band rewrite operations to improve read throughput are selected based on a hit tracking list including a hit counter associated with each band on the main data store. The hit counter tracks the number of times a host computing system has requested data in logical block addresses corresponding to the various bands. The data storage device may select bands for band rewrite operations based on the number of hits in the associated hit tracking counters.

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