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1. 发明授权

US09336150B2 Performing asynchronous discard scans with staging and destaging operations 有权
标题翻译：使用分段和分段操作执行异步丢弃扫描
公开(公告)号：US09336150B2
公开(公告)日：2016-05-10
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 , G06F12/02
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。

2. 发明授权

US08966178B2 Populating a first stride of tracks from a first cache to write to a second stride in a second cache 有权
标题翻译：从第一个高速缓冲存储器中填充轨迹的第一步，以写入第二个高速缓存中的第二个步幅
公开(公告)号：US08966178B2
公开(公告)日：2015-02-24
申请号：US13352230
申请日：2012-01-17
申请人： Kevin J. Ash , Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos , Karl A. Nielsen
发明人： Kevin J. Ash , Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos , Karl A. Nielsen
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F12/0868 , G06F12/0804 , G06F12/0897 , G06F12/128 , G06F2212/262 , G06F2212/312 , G06F2212/462
摘要： Provided are a computer program product, system, and method for managing data in a cache system comprising a first cache, a second cache, and a storage system. A determination is made of tracks stored in the storage system to demote from the first cache. A first stride is formed including the determined tracks to demote. A determination is made of a second stride in the second cache in which to include the tracks in the first stride. The tracks from the first stride are added to the second stride in the second cache. A determination is made of tracks in strides in the second cache to demote from the second cache. The determined tracks to demote from the second cache are demoted.
摘要翻译：提供了一种用于管理包括第一高速缓存，第二高速缓存和存储系统的高速缓存系统中的数据的计算机程序产品，系统和方法。确定存储在存储系统中的轨道以从第一高速缓存降级。形成第一步，包括确定的轨道降级。确定在第二高速缓存中的第二步，其中包括在第一步中的轨道。来自第一步的轨道被添加到第二缓存中的第二步。确定第二高速缓存中的步幅中的轨迹以从第二高速缓存降级。确定的从第二个缓存降级的轨迹将被降级。

3. 发明授权

US08959279B2 Populating a first stride of tracks from a first cache to write to a second stride in a second cache 有权
公开(公告)号：US08959279B2
公开(公告)日：2015-02-17
申请号：US13464668
申请日：2012-05-04
申请人： Kevin J. Ash , Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos , Karl A. Nielsen
发明人： Kevin J. Ash , Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos , Karl A. Nielsen
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F12/0868 , G06F12/0804 , G06F12/0897 , G06F12/128 , G06F2212/262 , G06F2212/312 , G06F2212/462
摘要： Provided are a computer program product, system, and method for managing data in a cache system comprising a first cache, a second cache, and a storage system. A determination is made of tracks stored in the storage system to demote from the first cache. A first stride is formed including the determined tracks to demote. A determination is made of a second stride in the second cache in which to include the tracks in the first stride. The tracks from the first stride are added to the second stride in the second cache. A determination is made of tracks in strides in the second cache to demote from the second cache. The determined tracks to demote from the second cache are demoted.

4. 发明授权

US08819291B2 Compression on thin provisioned volumes using extent based mapping 有权
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：US08819291B2
公开(公告)日：2014-08-26
申请号：US13450964
申请日：2012-04-19
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。

5. 发明授权

US08799578B2 Managing unmodified tracks maintained in both a first cache and a second cache 有权
公开(公告)号：US08799578B2
公开(公告)日：2014-08-05
申请号：US13113937
申请日：2011-05-23
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.

6. 发明授权

US08683130B2 Fabricating key fields 失效
标题翻译：制作关键字段
公开(公告)号：US08683130B2
公开(公告)日：2014-03-25
申请号：US13082288
申请日：2011-04-07
申请人： Michael T. Benhase , Susan K. Candelaria , Chung M. Fung , Lokesh M. Gupta , Joseph S. Hyde, II , Matthew J. Kalos , Beth A. Peterson , Donald P. Terry
发明人： Michael T. Benhase , Susan K. Candelaria , Chung M. Fung , Lokesh M. Gupta , Joseph S. Hyde, II , Matthew J. Kalos , Beth A. Peterson , Donald P. Terry
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F11/1004 , G06F3/0619 , G06F3/0661 , G06F3/0689
摘要： Exemplary methods, computer systems, and computer program products for fabricating key fields by a processor device in a computer environment are provided. In one embodiment, the computer environment is configured for, as an alternative to reading Count-Key-Data (CKD) data in order to change the key field, providing a hint to fabricate a new key field, thereby overwriting a previous key field and updating the CKD data.
摘要翻译：提供了用于在计算机环境中由处理器装置制造关键字段的示例性方法，计算机系统和计算机程序产品。在一个实施例中，计算机环境被配置为作为读取计数密钥数据（CKD）数据以便改变密钥字段的替代方案，提供制造新密钥字段的暗示，从而覆盖先前的密钥字段，并且更新CKD数据。

7. 发明申请

US20130205088A1 MULTI-STAGE CACHE DIRECTORY AND VARIABLE CACHE-LINE SIZE FOR TIERED STORAGE ARCHITECTURES 审中-公开
标题翻译：多级高速缓存目录和可变速度的高速缓存存储架构大小
公开(公告)号：US20130205088A1
公开(公告)日：2013-08-08
申请号：US13367155
申请日：2012-02-06
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： G06F12/0811 , G06F12/0866
摘要： A method in accordance with the invention includes providing first, second, and third storage tiers, wherein the first storage tier acts as a cache for the second storage tier, and the second storage tier acts as a cache for the third storage tier. The first storage tier uses a first cache line size corresponding to an extent size of the second storage tier. The second storage tier uses a second cache line size corresponding to an extent size of the third storage tier. The second cache line size is significantly larger than the first cache line size. The method further maintains, in the first storage tier, a first cache directory indicating which extents from the second storage tier are cached in the first storage tier, and a second cache directory indicating which extents from the third storage tier are cached in the second storage tier.
摘要翻译：根据本发明的方法包括提供第一，第二和第三存储层，其中第一存储层用作第二存储层的高速缓存，并且第二存储层用作第三存储层的高速缓存。第一存储层使用与第二存储层的盘区大小对应的第一高速缓存行大小。第二存储层使用对应于第三存储层的盘区大小的第二高速缓存行大小。第二个高速缓存行大小明显大于第一个高速缓存行大小。所述方法还在所述第一存储层中进一步维护指示从所述第二存储层的哪个区域被缓存在所述第一存储层中的第一高速缓存目录，以及指示从所述第三存储层的哪些区段被高速缓存在所述第二存储层中的第二高速缓存目录层。

8. 发明申请

US20120303898A1 MANAGING UNMODIFIED TRACKS MAINTAINED IN BOTH A FIRST CACHE AND A SECOND CACHE 有权
标题翻译：管理在第一个缓存和第二个缓存中维护的未修改的跟踪
公开(公告)号：US20120303898A1
公开(公告)日：2012-11-29
申请号：US13113937
申请日：2011-05-23
申请人： Kevin J. Ash , Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos , Kenneth W. Todd
发明人： Kevin J. Ash , Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos , Kenneth W. Todd
IPC分类号： G06F12/08
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。

9. 发明申请

US20120303861A1 POPULATING STRIDES OF TRACKS TO DEMOTE FROM A FIRST CACHE TO A SECOND CACHE 有权
公开(公告)号：US20120303861A1
公开(公告)日：2012-11-29
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 , 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.

10. 发明授权

US08788742B2 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 有权
公开(公告)号：US08788742B2
公开(公告)日：2014-07-22
申请号：US13113949
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： G06F12/00
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.

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