LTO

(redirected from LTO-5)

LTO

(Linear Tape Open) A family of open magnetic tape standards governed by HPE, IBM and Quantum that is licensed to third-party vendors. In 1998, two LTO formats were introduced that shared magnetic head and track layout, but the Ultrium cartridge was accepted, while the Accelis cassette never took off. As of 2020, LTO is the only thriving tape format. An ambitious LTO roadmap is projecting an LTO-12 cartridge to have a native capacity of 144TB.

A Built-in Chip
LTO cartridges contain an LTO-CM (LTO cartridge memory), which is a non-volatile EEPROM chip that stores location data and usage. Like an RFID chip, the EEPROM is read by radio waves. The CM also contains algorithms that prevent tampering when LTO is used for WORM storage, starting with LTO-3. See WORM.

Partitioning
Starting with LTO-5, an index was added to the beginning of the tape that identifies the locations of the files. Partitioning, combined with the LTFS file system, makes LTO tape operate more like a disk (see LTFS). For information, visit www.lto.org. See WORM, magnetic tape and tape cartridge.

LTO-M (LTO-7 Cartridges for LTO-8)
LTO-7 cartridges can be initialized as LTO-M media for LTO-8 drives and store 9TB instead of 6TB. However, LTO-M cartridges cannot be read in LTO-7 drives.


An LTO (Ultrium) Cartridge
The tape is drawn out of the cartridge to a take-up reel inside the LTO drive.


An LTO (Ultrium) Cartridge
The tape is drawn out of the cartridge to a take-up reel inside the LTO drive.




            Capacities    LTO   Raw Tape  EEPROM      HardwareGeneration   (TB)   (KB)  WORM  Encrypt

 LTO-12       144 | projected
 LTO-11        72 | projected
 LTO-10        36 | projected

 LTO-9 2020    18     8     X       X
 LTO-8 2017    12   8     X       X
 LTO-7 2015     6   8     X       X
 LTO-6 2012     2.5 8     X       X
 LTO-5 2010     1.5 8     X       X

              (GB)
 LTO-4 2007    800  8     X       X
 LTO-3 2005    400  4     X
 LTO-2 2003    200  4
 LTO-1 2000    100  4
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
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References in periodicals archive ?
* Previous generation compatibility --can read and write LTO-6 cartridges and read LTO-5 cartridges to protect investments.
Flash and tape--a perfect pairing of storage technologies
Tokyo, Aug 10, 2010 - (ACN Newswire) - Fujitsu today announced that its ETERNUS LT20, LT40 and LT60 tape libraries will be equipped with the next generation of LTO tape drives, LTO-5. By incorporating the brand new tape drive technology, Fujitsu's well-proven entry-level ETERNUS LT modelswill speed up reading or writing on tape, while at the same time reduce the required number of media slots and, consequently, costs for storing data with its higher capacities.
Customers will benefit from the technology upgrade in many ways: providing up to 3 TB of storage capacity, as each LTO-5 tape reduces the number of tapes needed in total and enables industry leading capacities of almost twice that of LTO-4 and four times that of LTO-3.
Energy efficiency is a further benefit: LTO-5 drives provide power savings even with performance increase compared to the previous generations.
Fujitsu Upgrades its Entry-level Tape Libraries with Next-Generation Tape Drives
announced it expects to be the first vendor to market with a line of multi-terabyte tape cartridges that can store up to 1.6TB of data in its native format or 3.2TB of data when it's compressed.<p>The Linear Tape Open, or LTO-5, format tapes offer double the 800GB capacity of the previous LTO-4 cartridge format.<p>Imation is the first company to license the Ultrium LTO-5 tape media.<p>"Imation is excited to announce this important industry milestone - the achievement of multiple terabytes of native capacity on a single MP tape cartridge," Subodh Kulkarni, vice president of Imation's Research, Development, and Engineering, said in a statement.
Imation announces multi-terabyte tape cartridges
Fujifilm has launched an LTO-5 data cartridge with a 3TB capacity (at 2:1 compression; 1.5TB native).
New Fujifilm LTO-5 cartridge

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