Storage Technology Corporation

Thomas J Murray

Stephen Henry Blendermann

William C Farnum

A translation device driver apparatus and method are disclosed. A first type of request is received from a disk-based file system to access a first type of storage device. The first type of storage device permits direct access reads and writes and implements update-in-place data modification wherein individual blocks of data stored in the first type of storage device can be modified individually without invalidating data stored in any other blocks in the first type of storage device. The first type of request is translated into a second type of request. The second type of request is a request for a second type of storage device. The second type of storage device operates in append-only mode. The second type of storage device does not permit update-in-place data modification. The second type of request is forwarded to a storage system. The storage system is designed to be the second type of storage device. The storage system is modified to permit update-in-place data modification.

Translation device driver for translating between disk device driver and tape device driver commands

A method in a data processing system is disclosed for permitting update-in-place in a tape drive. Data in a particular record in a tape that is mounted on the tape drive is modified. The particular record is located in a particular one of multiple different tracks in the tape. A first end-of-data mark is written after the modified data. Data in the particular one of the different tracks that is located after the first end-of-data mark is invalidated. All remaining data in all others of the tracks remain valid after the first end-of-data mark is written.

Tape drive that supports update-in-place

The invention provides a system for information lifecycle management of storage data on a storage network architecture. The system provides for bi-directional data transfer between an information lifecycle management controller, a host file system storage area network and an information lifecycle management storage area network. The information lifecycle management controller helps manage the data storage file transfers between the subsystems of the host file system storage area network and information lifecycle management storage area network. The method provides an information lifecycle management shim program, which resides in the host computer of the host file system storage area network, for hostless information lifecycle management of the data storage files. The system further provides a user-defined information lifecycle management of the migration, replication, copying, and backing up of the storage data files.

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Longmont, CO, United States of America

Thomas J Murray