Tape drive emulation by removable disk drive and media formatted therefor
AssigneeExabyte Corporation
InventorsSteve Georgis, Lawrence A. Freymuth
Life of this patent
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AssigneeExabyte Corporation
InventorsSteve Georgis, Lawrence A. Freymuth
Estimating the term…
A disk drive detects whether a disk inserted therein has a frame-based enhanced formatting. Disks having the frame-based enhanced formatting are readable by enhanced drives, e.g., those with the tape drive emulators. The frame-based enhanced formatting imposes on the data (1) an data organization, imperceptible to disk drive 22, for rendering the data expressible and locatable in a tape drive format, and (2) an additional degree of error correction that provides enhanced data integrity necessary for data backup/restore operations. The detection stems from a secondary formatting operation of the invention in which a format type identification is recorded on the disk. Preferably, the format type identification is recorded as one disk sector at a beginning logical block address of the disk, and forms part of a volume header frame. The volume header frame is followed by a directory comprising one or more directory frames.
A data storage system which connects to a host computer for performing one of a data backup operation and data restore operation, the data storage system comprising:
A data storage system which connects to a host computer for performing one of a data backup operation and data restore operation, the data storage system comprising:
A method of storing computer data on a rotating magnetic disk, the method comprising:
A method of storing computer data on a rotating magnetic disk, the method comprising:
A rotating information storage media comprising:
A tape drive emulator connected between a disk drive and a host computer which interfaces with said host computer using a set of commands applicable to a tape drive, the tape drive emulator generating a set of data for recordation in a predetermined plural number of sectors on a rotating information storage media, the set of data having error correction bytes generated over the set of data, the error correction bytes being sufficient to recover a sector of a disk not readable by the disk drive.
A method of formatting a rotating disk upon which information is recorded, the method comprising recording on the disk a format type identification, the format type identification being interpretable to indicate that the disk is compatible with transducing a multi-sectored set of data, the set of data being recordable or having been recorded in a predetermined plural number of sectors on the disk, the set of data having set error correction bytes generated over the set, the error correction bytes being sufficient to recover a sector of the disk not readable by a disk drive.
A rotating information storage media having:
A method of operating a disk drive, the method comprising:
Dependencies are inferred from the claim text.