Learning Network Manager Thread, LTO 4 Drive with LTO 5 tapes in Technical; should of checked this really does any one know if you can use lto 5 tapes with the lto 4 ...
6th June 2011, 03:11 PM #1
LTO 4 Drive with LTO 5 tapes
should of checked this really does any one know if you can use lto 5 tapes with the lto 4 drive as when i put mine (lto 5 tape) the drive rejected it. is this due the encryption of the tape and drive ? we are backing up disk to disk but i would still like a tape at the end of the week
IDG Tech News
6th June 2011, 03:34 PM #2
What are the backward compatibility characteristics of the Ultrium format?
The LTO Ultrium compatibility is defined with two concepts demonstrating investment protection: 1) An Ultrium drive can read data from a cartridge in its own generation and two prior generations. 2) An Ultrium drive can write data to a cartridge in its own generation and to a cartridge from the immediate prior generation in the prior generation format.
- An Ultrium format Generation 5 drive will read and write data on an Ultrium format Generation 4 cartridge as specified by the Generation 4 format and read data on an Ultrium format Generation 3 drive.
- An Ultrium format Generation 4 drive will read and write data on an Ultrium format Generation 3 cartridge as specified by the Generation 3 format and read data on an Ultrium format Generation 2 drive
Src: Ultrium - LTO Technology - About LTO - FAQs
But obviously not the other way around. I suppose you could think of it like trying to play a PS3 game on a PS2
15th March 2012, 10:38 PM #3
- Rep Power
Thanks for sharing knowledge...
o First mechanisms approved in April 2007. First media approved in May 2007.
o Doubled capacity again to 800 GB.
o Increased data transfer rate to 120 MB/s (maximum).
o Introduced drive level encryption feature using 256-bit AES-GCM .
o Specifications announced January 19, 2010. The first LTO-5 drives appeared on the market in Q2, 2010
o Nearly doubled capacity to 1.5 TB (1500 GB)
o Increased data transfer rate to 140 MB/s (maximum).
o Introduced partition feature that allows tape to be "split" into 2 separately writable areas. This feature is required by LTFS
19th March 2012, 01:33 PM #4
- Rep Power
It won't work for the reasons already stated. I suspect the tape head design changes with each new generation, and in any case each tape cartridge has an embedded chip (4 KB if I remember correctly) which identifies the tape to the drive, contains a Serial No, and also stores usage and failure data.
Originally Posted by kevin_lane
Regardless of whether an LTO 4 drive can read and write to LTO 5 tapes; the LTO 4 drive will identify an LTO 5 tape cartridge as soon as it engages in the drive, and will spit it out. For what its worth, earlier generations of LTO tapes and drives do exactly the same.
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