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1. 发明申请

WO2013064935A1 DYNAMICALLY ADJUSTED THRESHOLD FOR POPULATION OF SECONDARY CACHE 审中-公开
标题翻译：动态调整二级缓存的人口数量
公开(公告)号：WO2013064935A1
公开(公告)日：2013-05-10
申请号：PCT/IB2012/055730
申请日：2012-10-19
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM JAPAN LIMITED
发明人： GUPTA, Lokesh, Mohan , ELEFTHERIOU, Evangelos, Stravros , KOLTSIDAS, Ioannis , HU, Xiao-Yu , PLETKA, Roman , HAAS, Robert , BLINICK, Stephen , BENHASE, Michael, Thomas
IPC分类号： G06F12/12 , G06F3/06
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.
摘要翻译：通过确定候选数据的热度量来控制要插入到辅助数据存储高速缓存中的数据的总数; 调整热量度量阈值; 拒绝提供给热度量小于阈值的次数据存储高速缓存的候选数据; 并且允许其热度量等于或大于热度量阈值的候选数据。通过将与最近插入次级数据存储高速缓存中的数据的命中相关的参考度量与与次级数据存储高速缓存最近被排出的数据的命中相关的参考度量进行比较来确定热度量阈值的调整; 如果最近插入的参考度量值大于最近被驱逐的参考度量，则递减阈值; 并且如果最近插入的参考度量小于最近驱逐的参考度量，则递增阈值。

2. 发明申请

WO2013132370A1 ADAPTIVE CACHE PROMOTIONS IN A TWO LEVEL CACHING SYSTEM 审中-公开
标题翻译：自适应高速缓存在两级缓存系统中的推广
公开(公告)号：WO2013132370A1
公开(公告)日：2013-09-12
申请号：PCT/IB2013/051313
申请日：2013-02-18
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM JAPAN LIMITED
发明人： GUPTA, Lokesh, Mohan , ELEFTHERIOU, Evangelos, Stavros , KOLTSIDAS, Ioannis , HU, Xiao-Yu , PLETKA, Roman , HAAS, Robert , BLINICK, Stephen , BENHASE, Michael, Thomas
IPC分类号： G06F12/12 , G06F3/06 , 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 (MRU) 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，该页面被添加到第一高速缓存中的LRU列表的最近使用（MRU）端。

3. 发明申请

WO2013064917A1 PROMOTION OF PARTIAL DATA SEGMENTS IN FLASH CACHE 审中-公开
标题翻译：在FLASH CACHE中推广部分数据段
公开(公告)号：WO2013064917A1
公开(公告)日：2013-05-10
申请号：PCT/IB2012/054460
申请日：2012-08-30
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED , GUPTA, Lokesh, Mohan , ELEFTHERIOU, Evangelos, Stavros , KOLTSIDAS, Ioannis , HU, Xiao-Yu , PLETKA, Roman , HAAS, Robert , BLINICK, Stephen , KALOS, Matthew, Joseph , NIELSEN, Karl, Allen , BENHASE, Michael, Thomas
发明人： GUPTA, Lokesh, Mohan , ELEFTHERIOU, Evangelos, Stavros , KOLTSIDAS, Ioannis , HU, Xiao-Yu , PLETKA, Roman , HAAS, Robert , BLINICK, Stephen , KALOS, Matthew, Joseph , NIELSEN, Karl, Allen , BENHASE, Michael, Thomas
IPC分类号： G06F12/08
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： Exemplary method, system, and computer program product embodiments for efficient track destage in secondary storage in a more effective manner, are provided. In one embodiment, by way of example only, 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. Additional system and computer program product embodiments are disclosed and provide related advantages.
摘要翻译：提供了用于以更有效的方式在二次存储中有效地追踪排水的示例性方法，系统和计算机程序产品实施例。在一个实施例中，仅作为示例，对于与用于控制主存储器中的跟踪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次存储器。时间位允许在辅助存储器上老化。公开了附加的系统和计算机程序产品实施例并提供相关的优点。

4. 发明申请

WO2013064936A1 METHOD AND SYSTEM FOR SELECTIVE SPACE RECLAMATION OF DATA STORAGE MEMORY EMPLOYING HEAT AND RELOCATION METRICS 审中-公开
标题翻译：选择性空间回收数据存储器的方法和系统采用热和转移量度
公开(公告)号：WO2013064936A1
公开(公告)日：2013-05-10
申请号：PCT/IB2012/055801
申请日：2012-10-22
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： GUPTA, Lokesh, Mohan , ELEFTHERIOU, Evangelos, Stavros , KOLTSIDAS, Ioannis , HU, Xiao-Yu , PLETKA, Roman , HAAS, Robert , BENHASE, Michael, Thomas , KALOS, Matthew, Joseph
IPC分类号： G06F12/06
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： A method and computer program product for reclaiming space of a data storage memory of a data storage memory system, and a computer-implemented data storage memory system are provided. The method includes: 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：提供了一种用于回收数据存储存储器系统的数据存储器的空间的方法和计算机程序产品，以及计算机实现的数据存储存储器系统。该方法包括：确定存储在数据存储存储器中的数据的热量度; 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。

5. 发明申请

WO2015097956A1 EXTENDING USEFUL LIFE OF A NON-VOLATILE MEMORY BY HEALTH GRADING 审中-公开
标题翻译：通过健康分级延长非挥发性记忆的有用寿命
公开(公告)号：WO2015097956A1
公开(公告)日：2015-07-02
申请号：PCT/JP2014/005371
申请日：2014-10-22
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM JAPAN, LTD.
发明人： CAMP, Charles John , KOLTSIDAS, Ioannis , PAPANDREOU, Nikolaos , PARNELL, Thomas , PLETKA, Roman A. , POZIDIS, Charalampos , TRESSLER, Gary A. , WALLS, Andrew Dale
IPC分类号： G06F12/16 , G06F12/00
CPC分类号： G06F12/00 , G06F3/0614 , G06F3/0619 , G06F3/0653 , G06F11/008 , G06F11/076 , G06F11/0766 , G06F11/0787 , G06F11/10 , G06F11/1048 , G06F11/1068 , G06F12/0246 , G06F2212/7201
摘要： In at least one embodiment, a controller of a non-volatile memory array determines, for each of a plurality of regions of physical memory in the memory array, an associated health grade among a plurality of health grades and records the associated health grade. The controller also establishes a mapping between access heat and the plurality of health grades. In response to a write request specifying an address, the controller selects a region of physical memory to service the write request from a pool of available regions of physical memory based on an access heat of the address and the mapping and writes data specified by the write request to the selected region of physical memory.
摘要翻译：在至少一个实施例中，非易失性存储器阵列的控制器针对存储器阵列中的物理存储器的多个区域中的每一个确定多个健康等级之间的相关健康等级并且记录相关联的健康等级。控制器还建立了访问热量与多个健康等级之间的映射。响应于指定地址的写入请求，控制器基于地址的访问热量从物理存储器的可用区域的池中选择物理存储器的区域来服务写入请求，以及映射和写入由写入指定的数据请求到所选区域的物理内存。

6. 发明申请

WO2015083308A1 PAGE RETIREMENT IN A NAND FLASH MEMORY SYSTEM 审中-公开
标题翻译： NAND闪存存储系统中的页面退回
公开(公告)号：WO2015083308A1
公开(公告)日：2015-06-11
申请号：PCT/JP2014/004769
申请日：2014-09-17
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM JAPAN, LTD.
发明人： CAMP, Charles John , KOLTSIDAS, Ioannis , PLETKA, Roman A. , WALLS, Andrew Dale
IPC分类号： G06F12/16 , G11C29/00
CPC分类号： G06F3/064 , G06F3/0614 , G06F3/0688 , G06F11/1008 , G06F11/1012 , G06F11/108 , G06F2211/1059 , G06F2211/109
摘要： In a data storage system including a non-volatile random access memory (NVRAM) array, a page is a smallest granularity of the NVRAM array that can be accessed by read and write operations, and a memory block containing multiple pages is a smallest granularity of the NVRAM array that can be erased. Data are stored in the NVRAM array in page stripes distributed across multiple memory blocks. In response to detection of an error in a particular page of a particular block of the NVRAM array, only the particular page of the particular block is retired, such that at least two of the multiple memory blocks across which a particular one of the page stripes is distributed include differing numbers of active (non-retired) pages.
摘要翻译：在包括非易失性随机存取存储器（NVRAM）阵列的数据存储系统中，页面是可通过读写操作访问的NVRAM阵列的最小粒度，并且包含多个页的存储块是最小粒度可以擦除的NVRAM阵列。数据以分布在多个存储块上的页条带存储在NVRAM阵列中。响应于对NVRAM阵列的特定块的特定页面中的错误的检测，仅特定块的特定页面被退休，使得多个存储器块中的至少两个页面条带中的特定页面被分发包括不同数量的活动（非退休）页面。

7. 发明申请

WO2013073114A1 READING FILES STORED ON A STORAGE SYSTEM 审中-公开
标题翻译：存储系统中存储的文件
公开(公告)号：WO2013073114A1
公开(公告)日：2013-05-23
申请号：PCT/JP2012/006885
申请日：2012-10-26
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM JAPAN, LTD.
发明人： KOLTSIDAS, Ioannis , SARAFIJANOVIC, Slavisa , ELEFTHERIOU, Evangelos Stavros , JELITTO, Jens , HAAS, Robert , HAUSTEIN, Nils , SAUPP, Alexander , SEIPP, Harald
IPC分类号： G06F12/00 , G06F3/06
CPC分类号： G06F12/0866 , G06F3/06 , G06F3/061 , G06F3/0659 , G06F3/0682 , G06F12/0862 , G06F12/123 , G06F2212/213 , G06F2212/224 , G06F2212/463
摘要： The invention (Fig. 6) is directed to a method for reading files stored on a storage system. The storage system comprises storage means (104) storing a first set of files according to a predetermined data format and a cache memory (106) storing a second set of files, the second set of files being a subset of the first set of files. The storage system is configured to allow one or more remote systems (110, 120) for reading files stored on the storage means and/or on the cache memory. The method comprises: - receiving (602) from one or more remote systems at least one read request for reading a sequence of files; - determining (604), among the files of the sequence, whether one or more cached files are already stored on the cache memory and whether one or more remaining files are not already stored on the cache memory; - determining (606), within said one or more remaining files, an order according to which said remaining files should be read on the storage system, given locations of said remaining files as stored on the storage system according to said predetermined data format; - reading (608) said one or more remaining files on the storage system according to said order and storing the remaining files on the cache memory.
摘要翻译：本发明（图6）涉及用于读取存储在存储系统上的文件的方法。存储系统包括根据预定数据格式存储第一组文件的存储装置（104）和存储第二组文件的高速缓冲存储器（106），第二组文件是第一组文件的子集。存储系统被配置为允许一个或多个远程系统（110,120）用于读取存储在存储装置上和/或高速缓冲存储器上的文件。该方法包括：从一个或多个远程系统接收（602）至少一个用于读取文件序列的读取请求; - 确定（604）在该序列的文件中，一个或多个缓存的文件是否已经存储在高速缓冲存储器上，以及一个或多个剩余的文件是否还没有存储在高速缓冲存储器上; - 确定（606）在所述一个或多个剩余文件内，根据所述剩余文件在存储系统上读取的顺序，根据所述预定数据格式给定存储在存储系统上的所述剩余文件的位置; - 读取（608）根据所述顺序在存储系统上表示一个或多个剩余文件，并将剩余的文件存储在高速缓冲存储器上。

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