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LTO2

Created: 11 Oct 2012 • Updated: 11 Oct 2012 | 4 comments
This issue has been solved. See solution.

Hi,

 

Can my LTO2 tape backup run on LTO4 tape drives and vice versa?

 

What is the logic behind this all.Lto4 tape restore on LTO 2 drives?

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Yogesh9881's picture

below chart will help you to understand about Drive vs Tape compatibiliyi matrix.

 

  LTO TAPE DRIVES
TAPE FORMAT LTO-5 LTO-4 LTO-3 LTO-2 LTO-1
LTO-5 RW - - - -
LTO-4 RW RW - - -
LTO-3 R RW RW - -
LTO-2 - R RW RW -
LTO-1 - - R RW RW
 

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Before break-up, make sure you have a good backup.....  ;-)

CY's picture

You can restore from LTO2 tape using the LTO4 drive, since LTO technology is backward compatible for one generation to read/write, and two generations for read.

See this on Wikipedia: (http://en.wikipedia.org/wiki/Linear_Tape-Open)

  • An Ultrium drive reads data from a cartridge in its own generation and at least the two prior generations.
  • An Ultrium drive writes data to a cartridge in its own generation and to a cartridge from the immediate prior generation in the prior generation format.

I don't know where you got the request to restore backups from LTO4 tape using LTO2 drive.  That won't work.

 

 

 

 

SOLUTION
Andy2345's picture

Can we restore from LTO-4 tapes on LTO-2 tape drives ?

LTO technology is forward compatible ??

Marianne's picture

NO! 

Please read through previous 2 posts again.

CY's post is explaining the table that Yogesh has posted.

Please look at the table: 
LTO-2 drive can read and write LTO-2 and LTO-1 tapes ONLY...

There is no such thing as 'forward compatible'....

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