Abstract: Systems, methods, and data structures for providing a file system with object versioning support are provided. Rather than adding object records for each version of an object to a chapter record, in one example, the chapter record may be limited to a single object record for the object including: (i) an object name of the object; (ii) an object file handle identifying an index of a file containing data of a current version of the multiple versions of the object; and (iii) a version table file handle identifying an index of a file containing a version table. In this manner, enumeration of objects associated with a given chapter may be performed more efficiently and prior versions of objects may be maintained within the version table without disproportionate growth of chapter records and without increasing the search depth with objects that are not referenced by the search at issue.

Abstract: Apparatus, systems, and methods may operate to monitor operations of at least one processor to define a set of executed applications executed under a first operating system over a selected time period; and to generate an image of a second operating system having sufficient resources to service a subset of the set of executed applications, the subset determined according to a usage pattern defined by at least a portion of the selected time period, the number of resources provided by the second operating system being less than or equal to the number of resources provided by the first operating system. The images may be loaded based on receipt of a menu selection. Additional apparatus, systems, and methods are disclosed.

Abstract: Techniques for establishing a files system that exposes a virtual file system for backup operations are presented. Changes to files of a file system are maintained separately or collected and presented as a VFS. The VFS is then used to perform backup operations. Moreover, the files identified in the VFS can be customized based on search parameters, criterion, and/or criteria supplied by a user or supplied as parameters to backup and VFS mount operations.

Abstract: Techniques for establishing a files system that exposes a virtual file system for backup operations are presented. Changes to files of a file system are maintained separately or collected and presented as a VFS. The VFS is then used to perform backup operations. Moreover, the files identified in the VFS can be customized based on search parameters, criterion, and/or criteria supplied by a user or supplied as parameters to backup and VFS mount operations.

Abstract: Techniques for establishing a files system that exposes a virtual file system for backup operations are presented. Changes to files of a file system are maintained separately or collected and presented as a VFS. The VFS is then used to perform backup operations. Moreover, the files identified in the VFS can be customized based on search parameters, criterion, and/or criteria supplied by a user or supplied as parameters to backup and VFS mount operations.

Abstract: Apparatus, systems, and methods may operate to monitor operations of at least one processor to define a set of executed applications executed under a first operating system over a selected time period; and to generate an image of a second operating system having sufficient resources to service a subset of the set of executed applications, the subset determined according to a usage pattern defined by at least a portion of the selected time period, the number of resources provided by the second operating system being less than or equal to the number of resources provided by the first operating system. The images may be loaded based on receipt of a menu selection. Additional apparatus, systems, and methods are disclosed.

Abstract: Apparatus, systems, and methods may operate to monitor operations of at least one processor to define a set of executed applications executed under a first operating system over a selected time period; and to generate an image of a second operating system having sufficient resources to service a subset of the set of executed applications, the subset determined according to a usage pattern defined by at least a portion of the selected time period, the number of resources provided by the second operating system being less than or equal to the number of resources provided by the first operating system. The images may be loaded based on receipt of a menu selection. Additional apparatus, systems, and methods are disclosed.

Abstract: Techniques are presented for data replication. Two or more nodes are engaged in data replication with one another. When a node acquires a write lock, the write is processed to a local disk associated with the node and communicated to a shared disk. During recovery of a particular node following a failure, the shared disk is accessed to assist in synchronizing that particular node.

Abstract: Techniques for establishing a files system that exposes a virtual file system for backup operations are presented. Changes to files of a file system are maintained separately or collected and presented as a VFS. The VFS is then used to perform backup operations. Moreover, the files identified in the VFS can be customized based on search parameters, criterion, and/or criteria supplied by a user or supplied as parameters to backup and VFS mount operations.

Abstract: Techniques for establishing a files system that exposes a virtual file system for backup operations are presented. Changes to files of a file system are maintained separately or collected and presented as a VFS. The VFS is then used to perform backup operations. Moreover, the files identified in the VFS can be customized based on search parameters, criterion, and/or criteria supplied by a user or supplied as parameters to backup and VFS mount operations.

Abstract: Apparatus, systems, and methods may operate to monitor operations of at least one processor to define a set of executed applications executed under a first operating system over a selected time period; and to generate an image of a second operating system having sufficient resources to service a subset of the set of executed applications, the subset determined according to a usage pattern defined by at least a portion of the selected time period, the number of resources provided by the second operating system being less than or equal to the number of resources provided by the first operating system. The images may be loaded based on receipt of a menu selection. Additional apparatus, systems, and methods are disclosed.

Abstract: Techniques for establishing a files system that exposes a virtual file system for backup operations are presented. Changes to files of a file system are maintained separately or collected and presented as a VFS. The VFS is then used to perform backup operations. Moreover, the files identified in the VFS can be customized based on search parameters, criterion, and/or criteria supplied by a user or supplied as parameters to backup and VFS mount operations.

Abstract: Techniques are presented for data replication. Two or more nodes are engaged in data replication with one another. When a node acquires a write lock, the write is processed to a local disk associated with the node and communicated to a shared disk. During recovery of a particular node following a failure, the shared disk is accessed to assist in synchronizing that particular node.