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The Linear Tape File System (LTFS) is a file system that allows files stored on magnetic tape to be accessed in a similar fashion to those on disk or removable flash drives. It requires both a specific format of data on the tape media and software to provide a file system interface to the data.
The Linear Tape File System (LTFS) is a self-describing tape format and file system made possible by the partition feature. File data and filesystem metadata are stored in separate partitions on the tape. The metadata, which uses a standard XML schema, is
LTFS (Linear Tape File System for LTO and Enterprise tape) MVFS – MultiVersion File System, proprietary, used by IBM DevOps Code ClearCase. Nexfs Combines Block, File, Object and Cloud storage into a single pool of auto-tiering POSIX compatible storage. OverlayFS – A union mount filesystem implementation for Linux.
The IBM System Storage TS2230 Tape Drive, Model Type 3580, Model H3V, is a high-performance, high-capacity data-storage device that is designed to backup and restore open systems applications. It is the third generation in the Ultrium series of products, and is available with a Serial Attached SCSI interface (SAS).
The IBM implementation of this file system has been released as the open-source IBM Linear Tape File System — Single Drive Edition (LTFS-SDE) product. The Linear Tape File System uses a separate partition on the tape to record the index meta-data, thereby avoiding the problems associated with scattering directory entries across the entire tape.
Linear Tape-Open LTO-4: 800 GB: 2008 IBM TS1130: 1 TB: Encryption capability integrated into the drive 2008 StorageTek T10000B: 1 TB: 2010 Linear Tape-Open LTO-5: 1.5 TB: Linear Tape File System (LTFS), which allows accessing files on tape in the file system directly (similar to disk filesystems) without an additional tape library database 2011 ...
Magnetic-tape data storage is a system for storing digital information on magnetic tape using digital recording. Tape was an important medium for primary data storage in early computers, typically using large open reels of 7-track , later 9-track tape.
Keep a list of tape volumes that are eligible to be over-written (known as scratch tapes). Maintain an online catalog of the location of files written to tape and a list of what files reside on each tape volume. These operations are usually achieved by using operating system "hooks" to intercept file open and close operations.