Abstract: A method, computer program product, and system for managing storage space in a virtualized computing environment. The method includes a computer determining, by one or more computer processors, that a virtual computer system has reached a threshold level of minimum available storage space. The storage space of the computer system is searched for an inactive snapshot file. When the inactive snapshot file is located, the inactive snapshot file is moved to a secondary storage.

Abstract: Various embodiments for autonomic reclamation processing for tapes are provided. Instructions are received to perform reclamation processing on the formatted tape. Formatted tape is loaded into a tape drive for buffering active data during reclamation processing and consolidating all of the active data in capacity optimized manner on the same formatted tape. The formatted tape comprises metadata denoting active and inactive data blocks for files. The meta data of the formatted tape is read into a reclamation memory. The table is sorted and a starting block address is sorted. All active files ordered in the table starting at the starting block address are read into the reclamation memory. The files are written from the reclamation memory to the formatted tape from the starting block address and updating the table with new block addresses of the files. The meta data is updated with the updated table.

Abstract: Methods and systems are provided for displaying information on a hard disk drive assembly. One hard disk drive assembly includes a hard disk drive that includes a driver circuit coupled to a display and to a display memory. The driver circuit activates the display mounted on the hard disk drive assembly. In response to the activation of the display the driver circuit obtains information from the display memory of the hard disk drive. The driver circuit displays at least a portion of the information obtained from the display memory on the display mounted on the hard disk drive assembly.

Abstract: A cloud computing information system includes a first collection unit that collects node status information from a cloud computing node, a second collection unit that collects cloud service status information indicative of an attribute of a cloud computing service being executed in the cloud computing node, a third collection unit that collects environmental data sets from a plurality of computing systems where each data set corresponds to attribute values of one of the computing systems, a group building unit that builds a group of computing systems, where the group includes computing systems of the plurality of computing systems with an identical attribute value, a storage unit that stores the node and cloud service status information, environmental data sets, and the identical attribute value, and a selection unit that selects characteristic data from the node and cloud service status information and environmental data sets and sends it to a computing system.

Abstract: A servo track has servo pattern frames including two pairs of parallel transitions, the transitions of each pair spaced apart an equal distance, the first pair at an azimuth angle, the second pair at the opposite azimuth angle. A servo channel receives signals at first times corresponding to a servo read head detecting the transitions of the first pair of parallel transitions of a servo pattern frame, and second times corresponding to the servo read head detecting the transitions of the second pair of parallel transitions. The servo channel determines a relative lateral movement and velocity between the tape and the tape head based on respective functions of the ratio (TD?TC)/(TB?TA), distance d, and constants proportional to the azimuth angle and the trajectory angle.

Abstract: Retention management for data stored in data blocks on a tape is provided. A block mapping table has entries each of which include an expiration date for data blocks stored on the tape. The entries of the block mapping table may be sorted in accordance with at least one sorting criterion. Data blocks on the tape are rearranged according to the block mapping table. The block mapping table is then stored, either on the tape or in a memory associated with the tape.

Abstract: Method, data processing systems, and computer program products are provided for virtualizing and managing a storage virtualization system (SVS) in a storage management architecture. Source data is copied from the source storage media to target data in a target storage media based on a predefined copy policy in a copy mapping table. A relation between the source data and the target data is tracked in a copy mapping table. It is determined if a copy of the requested data exists using the copy mapping table. Tiered storage policies are configured in a migration mapping table pertaining to the SVS. A source storage media is mapped to a target storage media and a migration policy. Responsive to the migration policy condition, determining the source storage media and a migration storage media. A copy relation between source storage media and migration storage media is determined to exists using the copy mapping table.

Abstract: A tape drive system server includes a non-volatile memory used as a cache memory for storing data files, at least part of the cache memory comprising a first region managed using a First In First Out policy management and a second region managed using a Least Recently Used policy management; a file system interface for interacting with data files stored on a tape drive system; an interface for allowing one or more remote systems reading and writing data stored on the cache memory; the server configured to: receive from the one or more remote systems one or more write requests for writing one or more data files; interpret attributes associated to data files instructed to be written by the one or more remote systems; and store data files instructed to be written by the remote systems according to the interpreted attributes.

Abstract: A data storage facility comprising a plurality of data storage media, an automated data storage library comprising a first plurality of storage cells, one or more data storage devices in communication with the controller, and a controller in communication with one or more host computers, a vault comprising a second plurality of storage cells, wherein the vault does not comprise any data storage devices, and a robotic accessor in communication with the controller, wherein the accessor comprises a gripper mechanism, and wherein the robotic accessor can bidirectionally transport each of the plurality of portable data storage media between the first plurality of storage cells and the one or more data storage devices.

Abstract: A system and method for reading files stored on a storage system is disclosed. The method includes communicatively coupling one or more remote systems for reading files stored in storage with a first set of files according to a predetermined data format and in a cache memory with a second set of files, the second set of files being a subset of the first set of files. Next one or more remote systems are received at least one read request for reading a sequence of files. A determination is made, among the files of the sequence of files, whether one or more cached files are already stored in the cache memory and whether one or more remaining files are not already stored in the cache memory. Creating, within the one or more remaining files, an order according to which the remaining files should be read on the storage system.

Abstract: A method and a system are provided for displaying information on a hard disk drive assembly. The hard disk drive assembly includes a hard disk drive which further comprises a driver circuit coupled to a display and a display memory. The driver circuit activates the display mounted on the hard disk drive assembly. In response to the activation of the display the driver circuit obtains information from the display memory of the hard disk drive. The driver circuit displays at least a portion of the information obtained from the display memory on the display mounted on the hard disk drive assembly.

Abstract: Method, data processing systems, and computer program products are provided for virtualizing and managing a storage virtualization system (SVS) in a storage management architecture. Source data is copied from the source storage media to target data in a target storage media based on a predefined copy policy in a copy mapping table. A relation between the source data and the target data is tracked in a copy mapping table. It is determined if a copy of the requested data exists using the copy mapping table.

Abstract: Data for deduplication is received. The received data is deduplicated if selected conditions corresponding to the deduplication are satisfied, wherein the selected conditions include a deduplication ratio, a data deduplication threshold, and a data quiescence measure. Deduplication of the received data is discontinued if the selected conditions corresponding to the deduplication are not satisfied.

Abstract: An approach for managing a data package is provided. Network utilization is determined to exceed a threshold. A sender computer determines a hash digest of the data package by using a hash function selected based on central processing unit utilization. If the hash digest is in a sender hash table, then without sending the data package, the sender computer sends the hash digest and an index referring to the hash digest so that a recipient computer can use the index to locate a matching hash digest and the data package in a recipient hash table. If the hash digest is not in the sender hash table, then the sender computer adds the data package and the hash digest to the sender hash table and sends the data package and the hash digest to the second computer to check the integrity of the data package based on the hash digest.

Abstract: For authorizing removable medium access, a reassembly module retrieves a medium portion of an encryption key from a removable medium. The encryption key encrypts encrypted data stored on the removable medium and includes a plurality of portions. The reassembly module further retrieves the user portion of the encryption key assigned to a user requesting the removable medium. The reassembly module reassembles the encryption key using at least the medium portion and the user portion of the plurality of portions. The decryption module decrypts the encrypted data with the reassembled encryption key.

Abstract: A data storage facility comprising a plurality of data storage media, an automated data storage library comprising a first plurality of storage cells, one or more data storage devices in communication with the controller, and a controller in communication with one or more host computers, a vault comprising a second plurality of storage cells, wherein the vault does not comprise any data storage devices, and a robotic accessor in communication with the controller, wherein the accessor comprises a gripper mechanism, and wherein the robotic accessor can bidirectionally transport each of the plurality of portable data storage media between the first plurality of storage cells and the one or more data storage devices.

Abstract: According to one embodiment, an independent file server connected to a wide area network (WAN) includes local file storage, a file system comprising information about directory structures, path, and file names of other file systems of other file servers connected to the WAN, and a deduplication module configured to communicate with other deduplication modules of other file servers connected to the WAN, perform data deduplication of data objects stored locally in the local file storage, and create and maintain a deduplication table mapping data chunks of locally stored data objects to identification characteristics and storage location in the local file storage, and construction plans of data files including locations of data chunks within the data files. Other systems, methods, and computer program products are presented according to more embodiments.

Abstract: A data storage facility comprising a plurality of data storage media, an automated data storage library comprising a first plurality of storage cells, one or more data storage devices in communication with the controller, and a controller in communication with one or more host computers, a vault comprising a second plurality of storage cells, wherein the vault does not comprise any data storage devices, and a robotic accessor in communication with the controller, wherein the accessor comprises a gripper mechanism, and wherein the robotic accessor can bidirectionally transport each of the plurality of portable data storage media between the first plurality of storage cells and the one or more data storage devices.

Abstract: A mechanism is provided for storing data files in a file system. The file system provides a plurality of reference data files, where each reference data file in the plurality of data files represents a group of similar data files. The mechanism creates a new data file and associated the new data file with one reference data file in the plurality of data files thus defining an associated reference data file of the plurality of reference data files. The mechanism informs the file system about the association of the new data file with the associated reference data file. The mechanism compresses the new data file using the associated reference data file thereby forming a compressed data file. The mechanism stores the compressed data file together with information about the association of the new data file with the associated reference data file.

Abstract: A method to sequentially deduplicate data, wherein the method receives a plurality of computer files, wherein each of the plurality of computer files comprises a label comprising a file name, a file type, a version number, and file size, and stores that plurality of computer files in a deduplication queue. The method then identifies a subset of the plurality of computer files, wherein each file of the subset comprises the same file name but a different version number, and wherein the subset comprises a maximum count of version numbers, and wherein the subset comprises a portion of the plurality of computer files. The method deduplicates the subset using a hash algorithm, and removes the subset from said deduplication queue. During the deduplicating, the method receives new computer files comprising the same file name, stores those new computer files to the deduplication queue, but does not add those new computer files to the subset.