公开(公告)号：US08688914B2

公开(公告)日：2014-04-01

申请号：US13286465

申请日：2011-11-01

申请人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Matthew J. Kalos ,  Ioannis Koltsidas ,  Karl A. Nielsen ,  Roman A. Pletka

发明人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Matthew J. Kalos ,  Ioannis Koltsidas ,  Karl A. Nielsen ,  Roman A. Pletka

IPC分类号： G06F12/00

CPC分类号： G06F3/0619 ,  G06F3/0646 ,  G06F3/0688 ,  G06F12/0246 ,  G06F12/0253 ,  G06F12/0811 ,  G06F12/0862 ,  G06F12/0864 ,  G06F12/0871 ,  G06F12/0897 ,  G06F12/122 ,  G06F12/127 ,  G06F12/128 ,  G06F2212/1016 ,  G06F2212/154 ,  G06F2212/222 ,  G06F2212/283 ,  G06F2212/604 ,  G06F2212/702 ,  G06F2212/7201

摘要： For efficient track destage in secondary storage in a more effective manner, for temporal bits employed with sequential bits for controlling the timing for destaging the track in a primary storage, the temporal bits and sequential bits are transferred from the primary storage to the secondary storage. The temporal bits are allowed to age on the secondary storage.

摘要翻译： 为了以更有效的方式有效地在二级存储器中运行轨迹，对于与用于控制主存储器中的轨道的定时的顺序位一起使用的时间位，时间位和顺序位从主存储器传送到辅助存储器。 时间位允许在辅助存储器上老化。

公开(公告)号：US08688913B2

公开(公告)日：2014-04-01

申请号：US13286454

申请日：2011-11-01

申请人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Matthew J. Kalos ,  Ioannis Koltsidas ,  Roman A. Pletka

发明人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Matthew J. Kalos ,  Ioannis Koltsidas ,  Roman A. Pletka

IPC分类号： G06F12/00

CPC分类号： G06F12/128 ,  G06F12/0811 ,  G06F12/0868 ,  G06F12/0891 ,  G06F12/0897 ,  G06F12/126 ,  G06F2212/1021 ,  G06F2212/1041 ,  G06F2212/222 ,  G06F2212/283

摘要： For movement of partial data segments within a computing storage environment having lower and higher levels of cache by a processor, a whole data segment containing one of the partial data segments is promoted to both the lower and higher levels of cache. Requested data of the whole data segment is split and positioned at a Most Recently Used (MRU) portion of a demotion queue of the higher level of cache. Unrequested data of the whole data segment is split and positioned at a Least Recently Used (LRU) portion of the demotion queue of the higher level of cache. The unrequested data is pinned in place until a write of the whole data segment to the lower level of cache completes.

摘要翻译： 为了在由处理器具有较低和较高级别的高速缓存的计算存储环境中移动部分数据段，将包含部分数据段中的一个的整个数据段升级到较低级别和更高级别的高速缓存。 整个数据段的请求数据被分割并定位在较高级缓存的降级队列的最近使用（MRU）部分。 整个数据段的未请求的数据被分割并定位在较高级别的缓存的降级队列的最近最少使用（LRU）部分。 未请求的数据被固定到位，直到整个数据段写入缓存的较低级别完成。

公开(公告)号：US09158706B2

公开(公告)日：2015-10-13

申请号：US13285890

申请日：2011-10-31

申请人： Michael T. Benhase ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Matthew J. Kalos ,  Ioannis Koltsidas ,  Roman A. Pletka

发明人： Michael T. Benhase ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Matthew J. Kalos ,  Ioannis Koltsidas ,  Roman A. Pletka

IPC分类号： G06F12/08 ,  G06F12/12

CPC分类号： G06F12/122 ,  G06F3/0608 ,  G06F3/0652 ,  G06F3/0683 ,  G06F12/0253 ,  G06F12/0871 ,  G06F12/121 ,  G06F12/126 ,  G06F12/128 ,  G06F2212/222 ,  G06F2212/7205

摘要： Space of a data storage memory of a data storage memory system is reclaimed by determining heat metrics of data stored in the data storage memory; determining relocation metrics related to relocation of the data within the data storage memory; determining utility metrics of the data relating the heat metrics to the relocation metrics for the data; and making the data whose utility metric fails a utility metric threshold, available for space reclamation. Thus, data that otherwise may be evicted or demoted, but that meets or exceeds the utility metric threshold, is exempted from space reclamation and is instead maintained in the data storage memory.

摘要翻译： 通过确定存储在数据存储存储器中的数据的热度量来回收数据存储存储器系统的数据存储器的空间; 确定与数据存储存储器内的数据的重新定位相关的重定位度量; 将与所述热量度量相关的数据的效用度量确定为所述数据的重定位度量; 并使其实用度量值的数据失效，可用于空间回收。 因此，否则可能被逐出或降级但满足或超过效用度量阈值的数据被免除空间回收，而是保留在数据存储存储器中。

公开(公告)号：US08930624B2

公开(公告)日：2015-01-06

申请号：US13412412

申请日：2012-03-05

申请人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

发明人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

IPC分类号： G06F12/00 ,  G06F3/06

CPC分类号： G06F12/128 ,  G06F12/126

摘要： Provided are a computer program product, system, and method for managing data in a first cache and a second cache. A reference count is maintained in the second cache for the page when the page is stored in the second cache. It is determined that the page is to be promoted from the second cache to the first cache. In response to determining that the reference count is greater than zero, the page is added to a Least Recently Used (LRU) end of an LRU list in the first cache. In response to determining that the reference count is less than or equal to zero, the page is added to a Most Recently Used (LRU) end of the LRU list in the first cache.

公开(公告)号：US08688897B2

公开(公告)日：2014-04-01

申请号：US13080655

申请日：2011-04-05

申请人： Evangelos S. Eleftheriou ,  Robert Haas ,  Xiao-Yu Hu ,  Roman A. Pletka

发明人： Evangelos S. Eleftheriou ,  Robert Haas ,  Xiao-Yu Hu ,  Roman A. Pletka

IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F9/26 ,  G06F9/34

CPC分类号： G06F12/0246 ,  G06F12/0871 ,  G06F12/0897 ,  G06F2212/222 ,  G06F2212/7202

摘要： Provided are a system, method, and computer program product for managing cache memory to cache data units in at least one storage device. A cache controller is coupled to at least two flash bricks, each comprising a flash memory. Metadata indicates a mapping of the data units to the flash bricks caching the data units, wherein the metadata is used to determine the flash bricks on which the cache controller caches received data units. The metadata is updated to indicate the flash brick having the flash memory on which data units are cached.

摘要翻译： 提供了一种用于管理高速缓冲存储器以在至少一个存储设备中缓存数据单元的系统，方法和计算机程序产品。 高速缓存控制器耦合到至少两个闪存块，每个闪存块包括闪存。 元数据表示数据单元与缓存数据单元的闪存块的映射，其中元数据用于确定高速缓存控制器高速缓存接收的数据单元的闪存块。 更新元数据以指示闪存块具有缓存数据单元的闪存。

公开(公告)号：US20130232295A1

公开(公告)日：2013-09-05

申请号：US13466861

申请日：2012-05-08

申请人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

发明人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

IPC分类号： G06F12/08

CPC分类号： G06F12/128 ,  G06F12/126

摘要： Provided are a computer program product, system, and method for managing data in a first cache and a second cache. A reference count is maintained in the second cache for the page when the page is stored in the second cache. It is determined that the page is to be promoted from the second cache to the first cache. In response to determining that the reference count is greater than zero, the page is added to a Least Recently Used (LRU) end of an LRU list in the first cache. In response to determining that the reference count is less than or equal to zero, the page is added to a Most Recently Used (LRU) end of the LRU list in the first cache.

公开(公告)号：US08972661B2

公开(公告)日：2015-03-03

申请号：US13285740

申请日：2011-10-31

申请人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

发明人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

IPC分类号： G06F12/08

CPC分类号： G06F12/0888 ,  G06F12/0866 ,  G06F12/0897 ,  G06F2212/225

摘要： The population of data to be inserted into secondary data storage cache is controlled by determining a heat metric of candidate data; adjusting a heat metric threshold; rejecting candidate data provided to the secondary data storage cache whose heat metric is less than the threshold; and admitting candidate data whose heat metric is equal to or greater than the heat metric threshold. The adjustment of the heat metric threshold is determined by comparing a reference metric related to hits of data most recently inserted into the secondary data storage cache, to a reference metric related to hits of data most recently evicted from the secondary data storage cache; if the most recently inserted reference metric is greater than the most recently evicted reference metric, decrementing the threshold; and if the most recently inserted reference metric is less than the most recently evicted reference metric, incrementing the threshold.

公开(公告)号：US08935479B2

公开(公告)日：2015-01-13

申请号：US13466861

申请日：2012-05-08

申请人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

发明人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

IPC分类号： G06F12/00 ,  G06F3/06

CPC分类号： G06F12/128 ,  G06F12/126

摘要： Provided are a computer program product, system, and method for managing data in a first cache and a second cache. A reference count is maintained in the second cache for the page when the page is stored in the second cache. It is determined that the page is to be promoted from the second cache to the first cache. In response to determining that the reference count is greater than zero, the page is added to a Least Recently Used (LRU) end of an LRU list in the first cache. In response to determining that the reference count is less than or equal to zero, the page is added to a Most Recently Used (LRU) end of the LRU list in the first cache.

摘要翻译： 提供了一种用于管理第一高速缓存和第二高速缓存中的数据的计算机程序产品，系统和方法。 当页面存储在第二高速缓存中时，对于页面的第二高速缓存中维护引用计数。 确定页面将被从第二缓存提升到第一高速缓存。 响应于确定参考计数大于零，该页被添加到第一高速缓存中的LRU列表的最近最少使用（LRU）末端。 响应于确定参考计数小于或等于零，该页被添加到第一高速缓存中的LRU列表的最近使用（LRU）端。

公开(公告)号：US20130232294A1

公开(公告)日：2013-09-05

申请号：US13412412

申请日：2012-03-05

申请人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

发明人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

IPC分类号： G06F12/08

CPC分类号： G06F12/128 ,  G06F12/126

摘要： Provided are a computer program product, system, and method for managing data in a first cache and a second cache. A reference count is maintained in the second cache for the page when the page is stored in the second cache. It is determined that the page is to be promoted from the second cache to the first cache. In response to determining that the reference count is greater than zero, the page is added to a Least Recently Used (LRU) end of an LRU list in the first cache. In response to determining that the reference count is less than or equal to zero, the page is added to a Most Recently Used (LRU) end of the LRU list in the first cache.

摘要翻译： 提供了一种用于管理第一高速缓存和第二高速缓存中的数据的计算机程序产品，系统和方法。 当页面存储在第二高速缓存中时，对于页面的第二高速缓存中维护引用计数。 确定页面将被从第二缓存提升到第一高速缓存。 响应于确定参考计数大于零，该页被添加到第一高速缓存中的LRU列表的最近最少使用（LRU）末端。 响应于确定参考计数小于或等于零，该页被添加到第一高速缓存中的LRU列表的最近使用（LRU）端。

公开(公告)号：US10152423B2

公开(公告)日：2018-12-11

申请号：US13285817

申请日：2011-10-31

申请人： Kevin J. Ash ,  Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

发明人： Kevin J. Ash ,  Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

IPC分类号： G06F12/0871 ,  G06F12/0888 ,  G06F12/0897 ,  G06F12/128 ,  G06F12/121

摘要： The population of data to be admitted into secondary data storage cache of a data storage system is controlled by determining heat metrics of data of the data storage system. If candidate data is submitted for admission into the secondary cache, data is selected to tentatively be evicted from the secondary cache; candidate data provided to the secondary data storage cache is rejected if its heat metric is less than the heat metric of the tentatively evicted data; and candidate data submitted for admission to the secondary data storage cache is admitted if its heat metric is equal to or greater than the heat metric of the tentatively evicted data.