(redirected from LTO-4)


(Linear Tape Open) A family of open magnetic tape standards developed by HP, IBM and Quantum (formerly the Certance subsidiary of Seagate) that are licensed to third-party vendors. LTO cartridges contain a memory that stores historical usage data. Although LTO was introduced with a native capacity of only 100GB, multi-terabyte tapes followed. Starting with LTO-3, write once-read many (WORM) support was added, and LTO-4 built in hardware encryption (see table below). See WORM.

LTO Is Ultrium
In 1998, two formats were announced: a single-hub Ultrium, like DLT cartridges, and a dual-hub Accelis, similar to Magstar MP. Sharing read/write head, track layout and other features, the single-hub Ultrium was accepted, while Accelis never took off. For information, visit See DLT and Magstar MP.

An LTO (Ultrium) Cartridge
The single-hub Ultrium is the only LTO format, and LTO and Ultrium are synonymous.

LTO UltriumGeneration    Native         Hardware  (year)     Capacity  WORM  Encryption

  LTO-1 (2000)  100GB
  LTO-2 (2003)  200GB
  LTO-3 (2005)  400GB      X
  LTO-4 (2007)  800GB      X       X

  LTO-5 (2010)  1.5TB      X       X
  LTO-6 (2012)  2.5TB      X       X
  LTO-7 (2016)  6.0TB      X       X
References in periodicals archive ?
LTO-6 drives are designed with backwards-compatible read-and-write capability with LTO-5 cartridges, and backward read capabilities with LTO-4 and LTO-5 cartridges, to ensure investment protection and to ease deployment.
Customers who select the LTO-5 pre-purchase option can receive an LTO-4 drive today for use until LTO-5 drives become available.
The Spectra Logic LTO-5 pre-purchase program provides LTO-4 drives to customers immediately and replaces those loaned drives with LTO-5 when available.
LTO-4 tape technology provides up to 800 GB of capacity (equivalent to 1.
LTO format generation 4 drives support backwards-compatible read-and-write capability with LTO generation 3 cartridges and backward read capabilities with LTO generation 2 cartridges, to help protect the investment customers have made in LTO products, and to provide easier migration for customers desiring to take advantage of the unique benefits of LTO-4.
6TB of capacity (assuming 2:1 compression) per cartridge, LTO-4 tape drive products bring transfer rates up to 240MB per second (assuming 2:1 compression), offers WORM (Write-Once, Read-Many) functionality that provides cost-effective means for storing data in a non-rewriteable format to help address compliance needs.
Tape brings exceptionally strong price/performance benefits while protecting data in a very cost-efficient manner, and the added data security provided by the native tape drive encryption capability of LTO-4 further increases the attractiveness of this format.
Tandberg Data's Magnum 1x7 with LTO-4 Offers Groundbreaking Pricing, Industry-Leading Robotics, and Proven Reliability, Ideal For SMB and Departmental Installations
The product's affordable pricing will allow SMBs and departmental users to consider LTO-4 automation over standalone tape devices.
Magnum 224 LTO-4 Tape Library is Ideally Suited for Busy SMBs and Departmental Organization Seeking Robust, Reliable, and Easy-to-Use Automated Data Protection Solutions
New LTO-4 Drive Offers 120 MB/s Native Transfer Rate, 800 GB Native Capacity and Hardware-Based Data Encryption
T50 customers can opt to pre-purchase LTO-4 drives from Spectra Logic now, and be among the first to upgrade the library when LTO-4 is released.