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LTO6 and Barium Ferrite (BaFe) Technology

Written by A2Z on January 21st, 2015.      0 comments

LTO6 and Barium Ferrite (BaFe) Technology

 

Lifetime of LTO drive

 

1.  Comparison between LTO6 and LTO5

When LTO users consider migrating from an older format to a newer one, they tend to focus on the benefits of increased capacity and transfer rate. However, drive lifetime is an important factor when considering TCO (Total Cost of Ownership). Since FUJIFILM has the largest manufacturing share in the world and conducts quality control tests including writing and reading brand-new media at the end of the manufacturing process, we have a significant amount of accumulated test data. Below is our estimate of drive lifetime for LTO6 and LTO5 based on our test data. 
 
Drive Media Drive Lifetime
Full File Pass Hour Month
LTO6 Fujifilm LTO6 (BaFe) 1,676 8,382 12
LTO5 Fujifilm LTO Metal Particle (MP) 1,200 4,800 7
                   Source: FUJIFILM estimation
 
  • “Lifetime” means the amount of time before drives are no longer able to record the specified recording capacity of each LTO media due to increased write/read errors after continuous use.
  • “Full File Pass” means 1 full capacity write or read.
  • In this estimation, 1 brand-new media write/read 1 full capacity (1 Full File Pass).
  • “Month” is calculated based on drives operating 24 hours a day.
 The write/read test results show that the LTO6 drive performs well for 12 months, 1.7 times longer than LTO5 drives. The superior SNR (Signal-to-Noise Ratio) of BaFe LTO6 media results in a longer drive lifetime compared to older generations. This is because BaFe LTO6 media continues to achieve the specified recording capacity for a longer period of time even after the drive head has deteriorated due to continuous use.  
BaFe is unique to FUJIFILM manufactured LTO6.

 

2. Comparison between BaFe LTO6 and MP LTO6

Fujifilm has also been able to compare the lifetime of LTO6 drives when using brand-new MP (Metal Particle) LTO6 vs. brand-new BaFe LTO6 media. In order to verify the difference, we tested brand-new MP LTO6 media with LTO6 drives. According to our test results, we can estimate that the drive lifetime when using MP LTO6 is 3 to 4 months. When using BaFe LTO6 media with LTO6 drives, the drive lifetime is extended to 12 months. 
 
Drive Media Drive Lifetime
Full File Pass Hour Month
LTO6 FujiFilm LTO6 (BaFe) 1,676 8,382 12
Manufacturer A LTO6 (MP) 563 2,815 4
Manufacturer B LTO6 (MP) 485 2,426 3
                 Source: FUJIFILM estimation
 
  • Same conditions as above.
The difference comes from the high SNR of BaFe media and LTO6 drive combination. The better SNR compensates for the diminishing drive performance due to continuous use and results in a longer drive lifetime.
 
FUJIFILM developed BaFe for LTO6 media because of its superior performance in the LTO6 system compared to MP media. FUJIFILM will continue to support LTO systems with our unique BaFe technology.
 

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