On Sun, 14 Sep 2008, rvadde wrote:

>
> Greetings!
>
> Is there some one who has recommendations about the Fragment Size for Tape 
> Drive Storage Units (Physical and Virtual)? With newer faster tape drives - 
> do we really need to fragment the backup images? I know the benifits of 
> fragmenting - to position to a specific file quickly which helps the 
> reoveries. But it seems when we use fragmenting - for every fragment the tape 
> has to position which stops streaming and slows down.
>
> Any suggestions?
>
> Thanks

The difference is between the time to backup vs. time to seek to restore.
Smaller fragment size = faster to seek and restore, larger fragment size =
longer time to seek and restore.

No fragments? It could take 2hrs+ to get to the end of the tape (seeking)
on LTO-2 for example to restore a 1 kilobyte file.

Justin.

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