Similar results here.
Using TCP/IP, a Compaq WInNT client, to an RS/6000 J30 ADSM server, I
have gotten over 1 MB per second on 16 MB token ring.  That is without
any effort at tuning, and I am sure that the limiting factor was the
Compaq.

When looking at your numbers be sure to measure what you know REALLY got
transferred; don't trust the stats printed in dsmsched.log.

And usually the client is the limiting factor - the client can spend a
LONG time noodling around its own directory structure trying to figure
out what to back up.

I only trust numbers I can get from transferring a large file of a known
size, so that directory processing is not part of the picture.


 =======================================================================
Wanda Prather
Johns Hopkins Applied Physics Lab
301-953-6000 X8769
wanda_prather AT jhuapl DOT edu

"Intelligence has much less practical application than you'd think."
              - Scott Adams/Dilbert
 =======================================================================


> ----------
> From:         Tim Dobrowolsky[SMTP:tim AT catrs.cat.cc.md DOT us]
> Sent:         Thursday, September 25, 1997 12:39 PM
> To:   ADSM-L AT vm.marist DOT edu
> Subject:      Re: Transfer rate over Token-ring network
>
> Using TCP/IP, a Compaq "Super server" and an RS/6000 R40 ADSM server
> we easily do 1.9 MB per second over 16 Mb token ring.  In other words,
> we max out the network.
>
>
> At 04:18 PM 9/25/97 +0200, you wrote:
> >Hi Kristen,
> >
> >That is about what we also got, but why don't you use TCP/IP
> >over the Token-ring. I've seen a BIG improvement using TCP/IP
> >instead of IPX/SPX.
> >Maybe others on the list have had similar experiences, or maybe
> >I was just lucky???
> >
> >Our Novell guys were dead set against going for TCP/IP until we
> >showed them the difference in throughput!
> >
> >Hope this helps...
> >RegardsChristo Heuer
> >Johannesburg
> >South Africa
> >Christoh AT absa.co DOT za
> >
> >>
> >> What is a reasonable transfer rate for backup over 16Mbs Token-Ring
> with
> >> IPX/SPX, if there's no problem with Disk, CPU en memory IO ?
> >>
> >> I get between 200Kb/sec - 500Kb/sec varying...
> >>
> >> thanks
> >>
> >> ~~~ Kristen Thorsen ~~~
> >> KLP Forsikring, Oslo, Norway
> >> work: +47 22033500, cell: +47 92088508
> >
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
> > Tim Dobrowolsky                   > <                yksloworboD miT
> <
> > Computer Services                 > <              secivreS retupmoC
> <
> > Catonsville Community College     > <  egelloC ytinummoC ellivsnotaC
> <
> > tim AT catrs.cat.cc.md DOT us            > <         su.dm.cc.tac.srtac@mit
> <
> > 410-455-4562                      > <                   2654-554-014
> <
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
>