The biggest problem is to have an architecture that can feed that
transfer rate  ..  because at those speed, one drive just saturates a
2 Gb FC link. ;op

On 9/13/07, Justin Piszcz <jpiszcz AT lucidpixels DOT com> wrote:
>
>
> On Thu, 13 Sep 2007, Gregory Demilde wrote:
>
> > Native drive speed of the T10K is 120 MB/s ... it is even closer to
> > 130 MB/s..; so If you are using compression and you feed the data fast
> > enough you can go over the 170 MB/s.. I had peaks over the 180 MB/s
> >
> >
> >
> > On 9/13/07, Justin Piszcz <jpiszcz AT lucidpixels DOT com> wrote:
> >>
> >>
> >> On Thu, 13 Sep 2007, Schaefer, Harry wrote:
> >>
> >>> FWIW, I have done write tests with ours and based on output from iostat
> >>> -xtc, the write speeds were between 100-105 mb/sec...
> >>>
> >>> Harry
> >>
> >> But that is just the read speed of the hard drives yeah?  If the data
> >> stream is compressed 2:1 the tape only writes then at 50-52.5 MiB/s.
> >>
> >> I recall watching catalog backups write to tape and I would see the disk
> >> reading at 100-120 MiB/s, was the LTO-2 tape that is was backing the
> >> catalog up to writing that fast?  No, compression was being used.
> >>
> >> Justin.
> >>
> >> _______________________________________________
> >> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> >> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> >>
> >
> >
> > --
> > Gregory DEMILDE
> > Email : gdemilde AT gmail DOT com
> > GSM : +352 691 915620
> >
>
> I was referring to LTO-X but nice info!
>
> Justin.
>


-- 
Gregory DEMILDE
Email : gdemilde AT gmail DOT com
GSM : +352 691 915620
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