Patent application number | Description | Published |
20120131265 | WRITE CACHE STRUCTURE IN A STORAGE SYSTEM - A method of writing data units to a storage device. The data units are cached in a first level cache sorted by logical address. A group (G | 05-24-2012 |
20130111106 | PROMOTION OF PARTIAL DATA SEGMENTS IN FLASH CACHE | 05-02-2013 |
20130111131 | DYNAMICALLY ADJUSTED THRESHOLD FOR POPULATION OF SECONDARY CACHE | 05-02-2013 |
20130111133 | DYNAMICALLY ADJUSTED THRESHOLD FOR POPULATION OF SECONDARY CACHE | 05-02-2013 |
20130111134 | MANAGEMENT OF PARTIAL DATA SEGMENTS IN DUAL CACHE SYSTEMS | 05-02-2013 |
20130111146 | SELECTIVE POPULATION OF SECONDARY CACHE EMPLOYING HEAT METRICS | 05-02-2013 |
20130111160 | SELECTIVE SPACE RECLAMATION OF DATA STORAGE MEMORY EMPLOYING HEAT AND RELOCATION METRICS | 05-02-2013 |
20130185512 | MANAGEMENT OF PARTIAL DATA SEGMENTS IN DUAL CACHE SYSTEMS - 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. | 07-18-2013 |
20130205077 | PROMOTION OF PARTIAL DATA SEGMENTS IN FLASH CACHE - 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. | 08-08-2013 |
20130232294 | ADAPTIVE CACHE PROMOTIONS IN A TWO LEVEL CACHING SYSTEM - 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. | 09-05-2013 |
20130232295 | ADAPTIVE CACHE PROMOTIONS IN A TWO LEVEL CACHING SYSTEM - 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. | 09-05-2013 |
20140201448 | MANAGEMENT OF PARTIAL DATA SEGMENTS IN DUAL CACHE SYSTEMS - 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. | 07-17-2014 |
20140240335 | CACHE ALLOCATION IN A COMPUTERIZED SYSTEM - System and method for operating a solid state memory containing a memory space. The present invention provides a computerized system that includes a solid state memory having a memory space; a controller adapted to use a first portion of the memory space as a cache; and a garbage collector adapted to use a second portion of the memory space to collect garbage in the solid state memory. The controller is adapted to change a size of at least one of the first portion and the second portion of the memory space during operation of the solid state memory. | 08-28-2014 |
20140359228 | CACHE ALLOCATION IN A COMPUTERIZED SYSTEM - A computerized system comprises a solid state memory and a controller adapted to use the solid state memory as a cache for the computerized system. The controller is adapted to add or to remove a chunk of data from the cache based on a detected frequency of occurrence of the chunk of data in the computerized system. | 12-04-2014 |
20150067001 | CACHE MANAGEMENT IN A COMPUTERIZED SYSTEM - A clustered computerized system includes a set of hosts, network infrastructure for interconnecting the hosts of the set, and a clustered file system shared between the hosts of the set. A solid state memory is assigned to each host of the set. The computerized system is configured to cache data in the solid state memories, and is configured to include metadata of the cached data in the clustered file system. | 03-05-2015 |
20150067294 | METHOD AND SYSTEM FOR ALLOCATING A RESOURCE OF A STORAGE DEVICE TO A STORAGE OPTIMIZATION OPERATION - Allocating a resource of a storage device to a storage optimization operation. An available resource of the storage device is monitored. Determining an allocation proportion of the resource allocated to the storage optimization operation, based on at least one of historical running information and a predicted value of a performance improvement caused by the storage optimization operation. Allocating the resource of the storage device to the storage optimization operation based on the available resource and the allocation proportion. | 03-05-2015 |