Adrian,
we have an ATM Backbone serving TokenRing (4/16) segments. Our NT-Servers do
not have direct ATM access, but are all located in (small) TR segments. The
uplink to our S390 host at the moment is a 16mbit gateway that will be
upgraded to ATM soon.
For the ADSM backup we transfer an amount of 18-25 GB daily. I think we'd
reach the limit soon when we do not upgrade the host gateway. Right now
there's not too much sparetime left, so initial fullbackups of new servers
are a bit risky.

To minimize wait time (e.g. for tape mounts) be sure to have your primary
storage pool emptied to tape before backup time starts and design your
poolsize large enough to fit at least the total data load of one night
(except very large files that go directly to tape)

Regards,
Michael
--
Michael H. Bartl
Michael H. Bartl
ADAC e.V. (Rechenzentrum, Produktionsplanung und Organisation)
Tel.: (089) 7676-4063, Fax: (089) 7676-8161
EMail: Michael.Bartl AT Zentrale.ADAC DOT de

> ----------
> Von:  Adrian Maurice[SMTP:adrian AT MY.IBM DOT COM]
> Gesendet:     Montag, 12. Oktober 1998 09:24
> An:   ADSM-L AT VM.MARIST DOT EDU
> Betreff:      ADSM on Token Ring
>
> Hello there,
>
> I would like to know if any of you are running ADSM on Token Ring (4/16
> Mbps). I have a prospect customer who is pretty concerned if the backbone
> will be a bottleneck.
>
> Estimated daily backup is 10 - 15GB over a backup window of 8 hours.
>
> ~ Adrian
>