Abstract: A mechanism is provided in a data processing system for performing a remote direct memory access operation. Responsive to receiving in a network interface controller a hash value of data to be copied from a source address in a source node to a destination address in a destination node in the remote direct memory access operation, the network interface controller performs a lookup operation in a translation protection table in the network interface controller to match the hash value to a hash value for data existing in memory of the destination node. Responsive to the network interface controller finding a match in the translation protection table, the network interface controller completes the remote direct memory access operation without transferring the data from the source node to the destination node.

Abstract: A first quality of service (QoS) desired for a first application during a period over a wireless network is determined. From a plurality of data communication channels, a data communication channel presently assigned to a first type of data packets is identified, the first type of data packets being used by the first application. A determination is made that the presently assigned data communication channel is unsuitable to provide the first QoS. A ranking of the first type of data packets is adjusted relative to a second type of data packets to assign a new rank to the first type of data packets. The new rank is transmitted to a service provider system associated with the wireless network, the new rank causing the service provider system to assign the first type of data packets to a second data communication channel in the plurality of data communication channels.

Abstract: A method and an apparatus for specifying a time-varying, intelligent service-oriented model are provided. A method implemented in a computer infrastructure having computer executable code embodied on a computer readable storage medium having programming instructions, includes defining information of a service which is to be provided to one or more users having access to a system storing the defined information. The method further includes defining policies associated with the defined information to allow and deny access to selected portions of the defined information, and exposing to a user of the one or more users the selected portions of the defined information based on the defined policies allowing access to the selected portions of the defined information.

Abstract: Data storage using application storage analytics that: (i) runs a set of application(s) that use a thin provision data storage device for data storage; (ii) determines a set of runtime behavior(s) of the set of applications(s) with respect to use of the thin provisioning data storage device for data storage; and (iii) calculates a runtime representation capacity based on a predetermined over-provisioning ratio and the set of runtime behavior(s).

Abstract: Exemplary embodiments for increased in-line deduplication efficiency in a computing environment are provided. Embodiments include incrementing the size of data samples from fixed size data chunks for each nth iteration for reaching a full size of an object requested for in-line deduplication, calculating in nth iterations hash values on data samples from fixed size data chunks extracted from the object, and matching in a nth hash index table the calculated nth iteration hash values for the data samples from the fixed size data chunks with a corresponding hash value of existing objects in storage, wherein the nth hash index table is built for each nth iteration of the data samples belonging to the fixed data chunks.

Abstract: A computing environment includes a home site and a cache site with nonhomogeneous thin-provisioned storage configurations. A file management system updates files stored at the cache site. Each updated file has an updated file size and a pre-update file size. When a resynchronization is needed between the cache site and the home site, for example due to an extended communication failure, the storage requirement changes for the updated files are calculated and a notification is sent to the home site. The notification identifies the updated files and the storage requirement changes. The home site sends a reply to the cache site. The reply identifies which files are approved for immediate processing. The cache site transfers resynchronization data for the approved files to the home site, and delays transferring resynchronization data for the unapproved files until subsequent replies from the home site indicate that the previously unapproved files are now approved.

Abstract: A method for pre-fetching objects from an object store and storing them in an object cache is disclosed. In one embodiment, such a method includes monitoring access to objects in an object store. The objects have metadata tags, such as user-defined or pre-defined metadata tags, associated therewith. The method further maintains a database for metadata tags associated with the objects, and keeps track of a number of object accesses per metadata tag. In the event a threshold number of object accesses for a particular metadata tag is reached, the method promotes objects having the metadata tag and/or a related metadata tag to an object cache. A corresponding system and computer program product are also disclosed.

Abstract: According to one exemplary embodiment, a method for automatic network reconfiguration associated with a failover event is provided. The method may include instructing a file system to capture a plurality of attributes associated with a plurality of data following the failover event, whereby the plurality of attributes comprises a fileset identifier, a first gateway node identifier, and a second gateway node identifier. The method may include determining, based on the captured fileset identifier, a virtual local area network associated with the fileset, whereby the determined virtual area network includes at least one software defined network switch. The method may include reconfiguring the at least one software defined network switch to stop sending a plurality of network traffic to the first gateway node and to start sending the plurality of network traffic to the second gateway node, whereby the plurality of network traffic is associated with the fileset.

Abstract: Bandwidth allocation management includes determining current available bandwidth of a network within which a computer system is operating. The bandwidth allocation management also includes using the current available bandwidth and applied feature delivery settings to determine an adjustment in feature delivery to the computer system. At least a portion of the feature delivery settings is specified by an end user of the computer system.

Abstract: A method of managing resource allocations in a storage system provisioning system, including monitoring write applications that result in new storage block allocations during a current time slice, calculating a time remaining to exceed actual capacity of allocated storage blocks, if the calculated remaining time does exceed length of next time slice immediately transmitting an alert when an estimated number of future write requests exceeds a predetermined threshold, and if the calculated remaining time does exceed length of next time slice immediately transmitting an alert when an estimated number of future write requests exceeds a predetermined threshold, wherein a duration of a time slice is set by a storage system administrator based upon a current storage library setup and a time required to arrange a new storage device when a thin provisioning device is going out of disk space.

Abstract: A method and system for determining priority is provided. The method includes generating a list defining specified data objects stored within a back-up/archived data storage system and applying importance levels to the specified data objects. Reliability urgency levels for the storage devices are determined and in response groups of data objects of the specified data objects are generated. Required reliability levels for each group of data objects are determined and associated erasure encoding rates are calculated. Fragment sets for the groups of data objects are generated and numbers of parity objects required for the fragment sets are determined. An erasure code algorithm is executed with respect to the groups of data objects and in response parity objects are computed on demand.

Abstract: In at least one embodiment, a method and system for accumulating geospatial location data and biomedical data for an individual during his/her travels is provided. In at least one embodiment, a device uses at least one location signal to determine geospatial data and receives a plurality of biomedical signals with both data types being stored for possible later retrieval for providing a diagnosis for the individual if a medical condition arises.

Abstract: Dynamic allocation of memory in a hybrid system is provided. In particularly, a method and system is provided to leverage a hybrid infrastructure for dynamic memory allocation and persistent file storage. The method includes a method comprises dynamically allocating a file or its part or to cache a file or its part between different storage technologies and respective memory technologies in a hybrid infrastructure.

Abstract: One method includes assigning a pointer from multiple logical blocks to the same original physical block if the multiple logical blocks include the same data. The method further includes receiving a command to write data to the first logical block and determining if the first logical block is a frequently accessed logical block. If the first logical block is a frequently accessed logical block, ownership of the original physical block is assigned to the first logical block. If ownership is established, the method includes copying any data stored in the original physical block to a new physical block, assigning a pointer from a second logical block to the new physical block, and performing the write command on the original physical block. A system includes a processor for performing the above method. One computer program product includes computer code for performing the method described above.

Abstract: A dataset is identified as a heat-intensive dataset based, at least in part, on the dataset being related to heat generation at a source storage device exceeding a heat rise limit. The source storage device hosts the heat-intensive dataset and the heat-intensive dataset comprises non-executable data. A first cooling area of a plurality of cooling areas is selected to accommodate the heat generation based, at least in part, on cooling characteristics of a plurality of cooling appliances of the plurality of cooling areas. The source storage device is associated with a second cooling area. A target storage device associated with the first cooling area is determined. The heat-intensive dataset is moved from the source storage device to the target storage device.

Abstract: In one embodiment, a method for managing data includes determining that a cache access count for a given data block is greater than an average cache access count, receiving a list of active applications accessing the given data block with an anticipated access count for each active application, receiving a list of applications that are anticipated to access the given data block within a time window with an anticipated future access count for each anticipated application, determining that a block application access weight is greater than a block application access threshold, determining that a cache profile weight for the given data block is greater than zero, and sending the cache profile weight to a file system. Other systems, methods, and computer program products are described according to more embodiments.

Abstract: Methods and systems for enhancing reliability in deduplication over storage clouds are provided. A method includes: determining a weight for each of a plurality of duplicate files based on parameters associated with a respective storage device of each of the plurality of duplicate files; and designating one of the plurality of duplicate files as a master copy based on the determined weight.

Abstract: A tool for notifying a recipient of an email message, belonging to an email thread, that a recipient address has been added to or dropped from the thread. Address fields of the email message received are compared to the address fields of the most recent prior email message in the thread. Addressed that are determined to be added or dropped are stored in the metadata of the email message received so the added or dropped recipient addresses can be accessed to notify recipients of subsequent emails in the email thread. The metadata of previous email messages in the email thread are accessed to notify the recipient of recipient addresses added or dropped between any two consecutive email messages in the thread.

Abstract: Methods, systems, and computer program products are provided for deduplicating data. In one embodiment, a method comprises mapping a plurality of file blocks of selected data to a plurality of logical blocks, deduplicating the plurality of logical blocks to thereby associate each logical block with a corresponding physical block of a plurality of physical blocks located on a physical memory device, two or more of the corresponding physical blocks being non-contiguous with each other, and determining whether one or more of the corresponding physical blocks are one or more frequently accessed physical blocks being accessed at a frequency above a threshold frequency and being referred to by a common set of applications.

Abstract: A mechanism is provided in a data processing system for on-demand caching in a wide area network (WAN) separated distributed file system or clustered file system. The mechanism monitors file access by a plurality of cache sites in the WAN separated distributed file system or clustered file system. The mechanism identifies access patterns by cache sites. The mechanism shares the access patterns with the plurality of cache sites. A given cache site within the plurality of cache sites combines the access patterns with local access information and identifies files to pre-fetch based on the combined information.