Hello folks,

One thing i would like to share.

We are on OS390 V1.2.  We will soon be on OS390 V2.4.

Over the last 12 months or so we have made every attempt to tune and
tweak
ADSM to get the best through put.

We have had people from IBM here looking at our installation and giving
the
all clear on our installation of ADSM.

We even implemented an ATM backbone on our network with the possibility
of
upto 11 MB/Sec specifically for ADSM.

After doing this and every test we could possibly think of we finally
realised that the bottleneck was TCPIP.

TCPIP could only transfer at a max of approx 3MB/Sec. We were seeing
about
2.8 which we were happy with considering all the problems with TCPIP.

The only recommendation we had was to go to OS390 V2.7 where we are
told
TCPIP is much faster.

We wait to see if this is true.

One final addition  :


                   YOU ARE ONLY AS FAST AS YOU'RE SLOWEST COMPONENT
!!!.


Thanks,

Kuli.

Kulbinder Toora
01384 296191 x3498
e-mail - Kulbinder.toora AT meb.co DOT uk
Midlands Electricity

> -----Original Message-----
> From: Dusedau, Stefan [SMTP:Stefan.Dusedau AT VIACOM DOT COM]
> Sent: Thursday, February 11, 1999 1:19 PM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      Re: transfer speed
>
> Doug,
>
> Another thing you might try is to do an FTP from the NT system to the
> mainframe and see the stats. This can tell you if the bottleneck is
the
> connection between the systems.
>
> We have decided on ADSM as our enterprise backup solution. This was
made
> on
> more then just performance. Ease of management, availability of
support
> and
> ability to use the same product on all our systems were more
important
> issues.
>
> Thank You,
>
> Stefan Dusedau
> infoWorks
> A Viacom technology service
> (212)258-6739
> stefan.dusedau AT viacom DOT com <mailto:stefan.dusedau AT viacom DOT com>
>
>
>                 -----Original Message-----
>                 From:   Douglas Brown [mailto:dbrown AT TELALINK DOT NET]
>                 Sent:   Wednesday, February 10, 1999 4:54 PM
>                 To:     ADSM-L AT VM.MARIST DOT EDU
>                 Subject:        transfer speed
>
>                 We purchased ADSM in hopes of getting rid of ArcServe
and
> 4mm tapes. In
>                 order for us to keep it, we have to prove that ADSM
is
> going
> to be at least
>                 as fast as ArcServe. So far, I haven't been able to
pull
> it
> off. I thought I
>                 would ask the list what kind of transfer rates they
(you)
> were getting. I
>                 realize that there are about a million factors that
can
> have
> an effect on
>                 the rate, so I'm really only looking for some good
> ballpark
> figures, but
>                 even that may not be possible.
>
>                 Here's the setup...
>
>                 133Mhz Pentium, NT server with 100+ MB RAM and a 10Mb
> pipe.
> Compression is
>                 off and all setting are at optimum per the
"Performance
> Tuning Guide". Data
>                 passes from the server (client) to a router, then out
of
> the
> router into the
>                 mainframe (S/390) in the next room. Again, a 10Mb
pipe all
> the way. ADSM is
>                 v3r1. Should I be getting better than 575-600K/sec?
>
>                 Thanks for any help.
>
>                 --
>                 Doug Brown
>
>                 21F3 8086 1D2D 5ED0 1794  2ED9 CFC3 8043 928B 6551
>
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