LTO


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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 2019, LTO is the only thriving tape format among all other tape technologies. An ambitious LTO roadmap is projecting an LTO-12 cartridge to have a native capacity of 192TB.

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)
New 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   (GB)   (KB)  WORM  Encrypt

 LTO-12     192000 |
 LTO-11      96000 | projected
 LTO-10      48000 |

 LTO-9       24000 | expected in 2019

 LTO-8 2017  12000  8     X       X
 LTO-7 2015   6000  8     X       X
 LTO-6 2012   2500  8     X       X
 LTO-5 2010   1500  8     X       X
 LTO-4 2007    800  8     X       X
 LTO-3 2005    400  4     X
 LTO-2 2003    200  4
 LTO-1 2000    100  4
References in periodicals archive ?
Quantum has the broadest product offerings in the segment with the value-oriented DLT VS products positioned against AIT and 4mm DAT in SMB environments, the SDLT products, which go head-to-head against LTO, and now LTO-2 and LTO-3 drives as a result of its acquisition of Certance.
And its full interoperability, as designated by LTO Consortium specifications, protects SMB's technology investments by delineating an upgrade path for those who have already invested in LTO1 technology and by guaranteeing compatibility with LTO3 and future LTO generations.
The Magnum 1x7 autoloader is a breakthrough tape storage product for the Apple customer because its low price makes the speed and capacity of LTO affordable for the thousands of companies that want to step up to LTO automation for their backup needs," said Tom Ward, president and CEO of Exabyte.
Since LTO tape technology first started shipping in September 2000, it has grown from 20,000 units in that first year to more than 300,000 units in 2004," (Gartner Inc.
Locations that have already deployed Super DLT 600 or LTO Ultrium 3 drives as part of their standard data backup architecture are already in possession of a WORM-based storage solution that complies with HIPAA standards.
Both Quantum's SDLT 320 drives and LTO Ultrium 2 drives--like HP's StorageWorks Ultrium 460--are rated at 250,000 hours MTBF at a 100% duty cycle.
Three new autoloaders based on LTO Ultrium technology are slated for launch in January; the InoStor 8 cartridge LTO8200 and LTO8100, both in a compact 2U full-rack form factor, and a LTO-2 version of InoStor's popular Tandberg LTO 10 cartridge, 4U half-rack autoloader.
2) Price erosion: Since there are over 10 brands offering LTO media this is leading to a price war as companies fight to gain market share.