I've seen these LTO test results

TSM backup/restore operations with a large (256 MB) file size of data that does 
not
benefit from compression (e.g. video, audio, and image files)

    Backup 12.8 MBs / second
    Restore 14.7 MBs / second

Backup/restore operations with large files which benefit from compression

    Backup 15.3 MBs / second
    Restore 17.0 MBs / second


Dan Giles wrote:

> I've seen a lot of things about LTO in this group (mostly good), but I haven't
> seen anything that directly relates to performance with TSM. To date, Magstars
> were THE best technology for TSM (in my opinion) due to the fact that it 
> didn't
> have to back-hitch. I suspect that because LTO uses servo tracking, that this
> may be the case with LTO as well.
>
> Also, looking through the red book, I see that the average search time to 
> first
> byte of data isn't any better than DLTs. With DLTs, I found 1 1/2 minutes wait
> time to start data transfer was a bit ridiculous, especially when collocating 
> a
> large number of servers.
>
> Any comments on this?
>
> --
> Dan Giles, Tivoli Certified Consultant - TSM 3.7
> phone: (416) 402-9744
> e-mail: dangiles AT sympatico DOT ca