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11. 发明申请

US20120303904A1 MANAGING UNMODIFIED TRACKS MAINTAINED IN BOTH A FIRST CACHE AND A SECOND CACHE 有权
公开(公告)号：US20120303904A1
公开(公告)日：2012-11-29
申请号：US13476781
申请日：2012-05-21
申请人： Kevin J. Ash , Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos , Keneth W. Todd
发明人： Kevin J. Ash , Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos , Keneth W. Todd
IPC分类号： G06F12/12
CPC分类号： G06F12/0897 , G06F12/0871
摘要： Provided are a computer program product, system, and method for managing unmodified tracks maintained in both a first cache and a second cache. The first cache has unmodified tracks in the storage subject to Input/Output (I/O) requests. Unmodified tracks are demoted from the first cache to a second cache. An inclusive list indicates unmodified tracks maintained in both the first cache and a second cache. An exclusive list indicates unmodified tracks maintained in the second cache but not the first cache. The inclusive list and the exclusive list are used to determine whether to promote to the second cache an unmodified track demoted from the first cache.

12. 发明申请

US20120303875A1 POPULATING STRIDES OF TRACKS TO DEMOTE FROM A FIRST CACHE TO A SECOND CACHE 有权
标题翻译：从第一个缓存到第二个高速缓存的轨迹的人行道
公开(公告)号：US20120303875A1
公开(公告)日：2012-11-29
申请号：US13465717
申请日：2012-05-07
申请人： Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos
发明人： Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos
IPC分类号： G06F12/08
CPC分类号： G06F12/0804 , G06F11/1076 , G06F11/1666 , G06F12/0866 , G06F12/0897 , G06F2212/262
摘要： Provided are a computer program product, system, and method for populating strides of tracks to demote from a first cache to a second cache. A first cache maintains modified and unmodified tracks from a storage system subject to Input/Output (I/O) requests. A determination is made to demote tracks from the first cache. A determination is made as to whether there are enough tracks ready to demote to form a stride, wherein tracks are written to a second cache in strides defined for a Redundant Array of Independent Disk (RAID) configuration. A stride is populated with tracks ready to demote in response to determining that there are enough tracks ready to demote to form the stride. The stride of tracks, to demote from the first cache, are promoted to the second cache. The tracks in the second cache that are modified are destaged to the storage system.
摘要翻译：提供了一种用于填充轨道的步骤以从第一高速缓存降级到第二高速缓存的计算机程序产品，系统和方法。第一个缓存从经受输入/输出（I / O）请求的存储系统维护修改和未修改的轨道。确定从第一个缓存降级曲目。确定是否有足够的轨道准备降级以形成步幅，其中轨道被写入为为独立磁盘冗余阵列（RAID）配置而定义的步幅中的第二高速缓存。为了确定有足够的轨迹准备降级以形成步幅，步幅上填充有准备降级的曲目。从第一个缓存降级的轨道的步伐被提升到第二个缓存。修改的第二个缓存中的轨道已转移到存储系统。

13. 发明申请

US20120303864A1 CACHE MANAGEMENT OF TRACKS IN A FIRST CACHE AND A SECOND CACHE FOR A STORAGE 有权
公开(公告)号：US20120303864A1
公开(公告)日：2012-11-29
申请号：US13113974
申请日：2011-05-23
申请人： Michael T. Benhase , Binny S. Gill , Lokesh M. Gupta , Matthew J. Kalos
发明人： Michael T. Benhase , Binny S. Gill , Lokesh M. Gupta , Matthew J. Kalos
IPC分类号： G06F12/08 , G06F12/02
CPC分类号： G06F12/0804 , G06F11/1666 , G06F11/20 , G06F12/0868 , G06F12/0897
摘要： Provided a computer program product, system, and method for cache management of tracks in a first cache and a second cache for a storage. The first cache maintains modified and unmodified tracks in the storage subject to Input/Output (I/O) requests. Modified and unmodified tracks are demoted from the first cache. The modified and the unmodified tracks demoted from the first cache are promoted to the second cache. The unmodified tracks demoted from the second cache are discarded. The modified tracks in the second cache that are at proximate physical locations on the storage device are grouped and the grouped modified tracks are destaged from the second cache to the storage device.

14. 发明授权

US08266325B2 Compression on thin provisioned volumes using extent based mapping 失效
标题翻译：使用基于范围的映射压缩精简配置卷
公开(公告)号：US08266325B2
公开(公告)日：2012-09-11
申请号：US12701184
申请日：2010-02-05
申请人： Michael T. Benhase , Binny S. Gill , Lokesh M. Gupta , Matthew J. Kalos , Gail A. Spear
发明人： Michael T. Benhase , Binny S. Gill , Lokesh M. Gupta , Matthew J. Kalos , Gail A. Spear
IPC分类号： G06F15/16
CPC分类号： G06F3/064 , G06F3/0608 , G06F3/0613 , G06F3/067 , G06F12/0804 , G06F12/0868 , G06F2212/401
摘要： A set of logical extents, each having compressed logical tracks of data, is mapped to a head physical extent and, if the head physical extent is determined to have been filled, to at least one overflow extent having spatial proximity to the head physical extent. Pursuant to at least one subsequent write operation and destage operation, the at least one subsequent write operation and destage operation determined to be associated with the head physical extent, the write operation is mapped to one of the head physical extent, the at least one overflow extent, and an additional extent having spatial proximity to the at least one overflow extent.
摘要翻译：将具有压缩的数据的逻辑轨迹的一组逻辑盘区映射到头部物理范围，并且如果将头部物理范围确定为已经被填充到具有与头部物理范围的空间接近的至少一个溢出范围。根据至少一个随后的写入操作和终止操作，所述至少一个随后的写入操作和后退操作被确定为与所述头部物理范围相关联，所述写入操作被映射到所述头部物理范围中的一个，所述至少一个溢出并且具有与至少一个溢出范围的空间接近的附加程度。

15. 发明授权

US09158706B2 Selective space reclamation of data storage memory employing heat and relocation metrics 有权
标题翻译：使用热和重定位度量的数据存储存储器的选择性空间回收
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。

16. 发明授权

US08850106B2 Populating strides of tracks to demote from a first cache to a second cache 有权
标题翻译：填充轨道的步伐，以从第一个缓存降级到第二个缓存
公开(公告)号：US08850106B2
公开(公告)日：2014-09-30
申请号：US13465717
申请日：2012-05-07
申请人： Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos
发明人： Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos
IPC分类号： G06F12/00 , G06F11/10 , G06F12/08 , G06F11/16
CPC分类号： G06F12/0804 , G06F11/1076 , G06F11/1666 , G06F12/0866 , G06F12/0897 , G06F2212/262
摘要： Provided are a computer program product, system, and method for populating strides of tracks to demote from a first cache to a second cache. A first cache maintains modified and unmodified tracks from a storage system subject to Input/Output (I/O) requests. A determination is made to demote tracks from the first cache. A determination is made as to whether there are enough tracks ready to demote to form a stride, wherein tracks are written to a second cache in strides defined for a Redundant Array of Independent Disk (RAID) configuration. A stride is populated with tracks ready to demote in response to determining that there are enough tracks ready to demote to form the stride. The stride of tracks, to demote from the first cache, are promoted to the second cache. The tracks in the second cache that are modified are destaged to the storage system.
摘要翻译：提供了一种用于填充轨道的步骤以从第一高速缓存降级到第二高速缓存的计算机程序产品，系统和方法。第一个缓存从经受输入/输出（I / O）请求的存储系统维护修改和未修改的轨道。确定从第一个缓存降级曲目。确定是否有足够的轨道准备降级以形成步幅，其中轨道被写入为为独立磁盘冗余阵列（RAID）配置而定义的步长中的第二缓存。为了确定有足够的轨迹准备降级以形成步幅，步幅上填充有准备降级的曲目。从第一个缓存降级的轨道的步伐被提升到第二个缓存。修改的第二个缓存中的轨道已转移到存储系统。

17. 发明授权

US08825944B2 Populating strides of tracks to demote from a first cache to a second cache 有权
公开(公告)号：US08825944B2
公开(公告)日：2014-09-02
申请号：US13113931
申请日：2011-05-23
申请人： Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos
发明人： Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos
IPC分类号： G06F12/00
CPC分类号： G06F12/0804 , G06F11/1076 , G06F11/1666 , G06F12/0866 , G06F12/0897 , G06F2212/262
摘要： Provided are a computer program product, system, and method for populating strides of tracks to demote from a first cache to a second cache. A first cache maintains modified and unmodified tracks from a storage system subject to Input/Output (I/O) requests. A determination is made to demote tracks from the first cache. A determination is made as to whether there are enough tracks ready to demote to form a stride, wherein tracks are written to a second cache in strides defined for a Redundant Array of Independent Disk (RAID) configuration. A stride is populated with tracks ready to demote in response to determining that there are enough tracks ready to demote to form the stride. The stride of tracks, to demote from the first cache, are promoted to the second cache. The tracks in the second cache that are modified are destaged to the storage system.

18. 发明授权

US08700854B2 Managing unmodified tracks maintained in both a first cache and a second cache 有权
标题翻译：管理在第一缓存和第二高速缓存中维护的未修改轨道
公开(公告)号：US08700854B2
公开(公告)日：2014-04-15
申请号：US13476781
申请日：2012-05-21
申请人： Kevin J. Ash , Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos , Keneth W. Todd
发明人： Kevin J. Ash , Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos , Keneth W. Todd
IPC分类号： G06F12/00
CPC分类号： G06F12/0897 , G06F12/0871
摘要： Provided are a computer program product, system, and method for managing unmodified tracks maintained in both a first cache and a second cache. The first cache has unmodified tracks in the storage subject to Input/Output (I/O) requests. Unmodified tracks are demoted from the first cache to a second cache. An inclusive list indicates unmodified tracks maintained in both the first cache and a second cache. An exclusive list indicates unmodified tracks maintained in the second cache but not the first cache. The inclusive list and the exclusive list are used to determine whether to promote to the second cache an unmodified track demoted from the first cache.
摘要翻译：提供了一种用于管理在第一高速缓存和第二高速缓存中保持的未修改轨道的计算机程序产品，系统和方法。第一个缓存在存储器中具有未修改的轨道，需要输入/输出（I / O）请求。未修改的轨道从第一缓存降级到第二缓存。包含的列表指示在第一高速缓存和第二高速缓存中保持的未修改轨道。排他列表指示在第二缓存中维护的未修改轨道，但不指示第一缓存。包含列表和排他列表用于确定是否向第二缓存提升从第一高速缓存降级的未修改轨道。

19. 发明申请

US20130332646A1 PERFORMING ASYNCHRONOUS DISCARD SCANS WITH STAGING AND DESTAGING OPERATIONS 有权
标题翻译：执行异步扫描扫描，具有分析和执行操作
公开(公告)号：US20130332646A1
公开(公告)日：2013-12-12
申请号：US13491818
申请日：2012-06-08
申请人： Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos
发明人： Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos
IPC分类号： G06F12/08
CPC分类号： G06F12/0866 , G06F3/0608 , G06F3/0619 , G06F3/0641 , G06F3/0665 , G06F3/0689 , G06F12/0246 , G06F12/0804 , G06F12/0868 , G06F2212/2022
摘要： A controller receives a request to perform staging or destaging operations with respect to an area of a cache. A determination is made as to whether one or more discard scans are being performed or queued for the area of the cache. In response to determining that one or more discard scans are being performed or queued for the area of the cache, the controller avoids satisfying the request to perform the staging or the destaging operations with respect to the area of the cache.
摘要翻译：控制器接收关于高速缓存的区域执行分段或降级操作的请求。确定是否正在为高速缓存的区域执行或排队一个或多个丢弃扫描。为了响应于确定为高速缓存区域执行或排队的一个或多个丢弃扫描，控制器避免满足对高速缓存的区域执行登台或降级操作的请求。

20. 发明申请

US20120303877A1 USING AN ATTRIBUTE OF A WRITE REQUEST TO DETERMINE WHERE TO CACHE DATA IN A STORAGE SYSTEM HAVING MULTIPLE CACHES INCLUDING NON-VOLATILE STORAGE CACHE IN A SEQUENTIAL ACCESS STORAGE DEVICE 失效
标题翻译：使用写请求的属性来确定在具有多个缓存的存储系统中的数据，包括在顺序访问存储设备中的非易失性存储缓存
公开(公告)号：US20120303877A1
公开(公告)日：2012-11-29
申请号：US13474481
申请日：2012-05-17
申请人： Michael T. Benhase , Binny S. Gill , Lokesh M. Gupta , Matthew J. Kalos
发明人： Michael T. Benhase , Binny S. Gill , Lokesh M. Gupta , Matthew J. Kalos
IPC分类号： G06F12/02
CPC分类号： G06F12/0866 , G06F12/123
摘要： Provided are a computer program product, system, and method for using an attribute of a write request to determine where to cache data in a storage system having multiple caches including non-volatile storage cache in a sequential access storage device. Received modified tracks are cached in the non-volatile storage device integrated with the sequential access storage device in response to determining to cache the modified tracks. A write request having modified tracks is received. A determination is made as to whether an attribute of the received write request satisfies a condition. The received modified tracks for the write request are cached in the non-volatile storage device in response to determining that the determined attribute does not satisfy the condition. A destage request is added to a request queue for the received write request having the determined attribute not satisfying the condition.
摘要翻译：提供了一种用于使用写请求的属性来确定在具有多个高速缓存的存储系统中的数据的高速缓存的位置的计算机程序产品，系统和方法，包括非易失性存储高速缓存在顺序访问存储设备中。响应于确定缓存修改的轨道，接收的修改的轨道被缓存在与顺序存取存储设备集成的非易失性存储设备中。接收到具有修改轨迹的写入请求。确定所接收的写请求的属性是否满足条件。响应于确定所确定的属性不满足条件，用于写入请求的接收的修改的轨道被缓存在非易失性存储设备中。对于具有不满足条件的确定属性的接收到的写入请求，向请求队列添加了一个流出请求。

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