International Business Machines Corporation

Charles Alan Nichols

David Maxwell Cannon

Colin Scott Dawson

Barry Fruchtman

Thomas Franklin Ramke, Jr

John Viksne

Peter Tanenhaus

Jack Earl Steitz

For each section of a buffer, a string of characters is retrieved and reordered to generate a reordered string of characters for the section. Thereafter, for each section of the buffer, the string of characters within the section is copied over with the reordered string of characters for a different section of the buffer. The buffer is then output to a file. If a desired length of the file has not yet been reached, then this process is repeated, or the buffer is again output to the file, based on a desired amount of duplicate data to be included within the file. The resulting file can be used to test a single-instance storage algorithm. The file is thus adapted to mimic a non-artificially generated file in relation to testing a single-instance storage algorithm.

File generation for testing single-instance storage algorithm

A system and method to efficiently back up files while preserving memory resources. The system includes a generation module to generate an unordered list of backup files and associated attributes, and a processing module to back up local files one at a time by modifying the backup files to reflect changes to the local files. The processing module may include a retrieval module to retrieve local file attribute information from the hard disk, a comparator module to compare the local file attributes to corresponding backup file information on the list, and an update module to update the corresponding backup file to reflect any differences. In this manner, the present invention avoids processing limitations caused by insufficient memory and/or excessive quantities of local files.

System and method for preserving memory resources during data backup

An article of manufacture and system are provided for allocating storage space to a storage pool. A request for storage space for the storage pool is received. A list of locations associated with the storage pool is obtained, wherein the locations are capable of spanning multiple file systems or multiple directories within a single file system. One or more allocation techniques are applied to select one or more locations at which storage space is to be allocated. The storage space is allocated at the selected one or more locations.

Article of manufacture and system for storage pool space allocation across multiple locations

Techniques are provided for allocating storage space to a storage pool. A request for storage space for the storage pool is received. A list of locations associated with the storage pool is obtained, wherein the locations are capable of spanning multiple file systems or multiple directories within a single file system. One or more allocation techniques are applied to select one or more locations at which storage space is to be allocated. The storage space is allocated at the selected one or more locations.

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Tucson, AZ, United States of America

Charles Alan Nichols