John,
Not a simple question to answer. Since LTO is a linear tape format, the distribution of data
over that tape WILL impact retrieval time. (Seek time)
On our Storage DNA system, it takes about three hours to fill up a 1.3 Terrabyte LTO5 tape.
Retrieval is usually a bit slower. Our LTO drive is esata attached to a SAN fibre connected client. This is about as fast as you can get with a SAN.
In your case, you're not talking about restoring the entire tape, but you can probably expect to take significantly MORE time than if you were popping in a Digibeta tape into a deck.
Storage DNA is working on a solution to do exactly what you describe, but I have not tried it yet. Contact Keycode Media if you'd like a demo.
Mark
--- In Avid-L2@yahoogroups.com, "johnrobmoore" <bigfish@...> wrote:
>
> Assuming I've archive to LTO-5 LTFS, or is all LTO-5 LTFS?, and I've also archived to a raw HD. What is the time difference in retrieving data back if I need to fix a 3 shot section in an hour show? Will those LTFS LTO-5 drives appear like a media drive so I could in theory consolidate the necessary media back to my normal storage to do the fix?
>
> --- In Avid-L2@yahoogroups.com, "Pat Horridge" <pat@> wrote:
> >
> > This is a really interesting area currently
> >
> > LTFS is relatively new and is a method of allowing an LTO-5 drive and it's
> > tape to appear as a drive on the host system and via that on a network.
> >
> > However this is quite different from sing the LTO as a backup up restore
> > route.
> >
> >
> >
> > One of the big attractions to using data backup techniques for managing post
> > files is it's a very established technology and industry and adopting it
> > buys into that. So it's as safe a bet as you can make on continued support
> > and access to your data in decades to come. However that didn't really suit
> > the needs of the post industry and the LTFS method has been developed to use
> > the LTO-5 tape and drive more like a sort of VTR come hard drive.
> >
> > But will that still be carried forward and supported over the next 10, 20 or
> > 30 years as the more traditional backup restore process are likely to be?
> >
> >
> >
> > So my view is there are two different uses for an LTO-5 setup. One being
> > LTFS and something like a Cache-A for near line storage of media allowing
> > reasonably fast and easy access to content. And also a more robust
> > traditional software based backup solution for longer term backup.
> >
> >
> >
> > But a lots happening in this areas so who knows what this year will see.
> >
> >
> >
> > Pat Horridge
> > Technical Director, Trainer, Avid Certified Instructor
> > VET
> > Production Editing Digital Media Design DVD
> > T +44 (0)20 7505 4701 | F +44 (0)20 7505 4800 | E <mailto:pat@>
> > pat@ |
> > www.vet.co.uk | Lux Building 2-4 Hoxton Square London N1 6US
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
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