ADSM-L

networking and adsm

1998-01-23 12:41:35
Subject: networking and adsm
From: Cindy Cannam <CCannam AT GENAM DOT COM>
Date: Fri, 23 Jan 1998 11:41:35 -0600
To all ADSMers:

Just out of curiosity, how many of you folks are experiencing dreadful (and
I mean really horrible) network transfer rates for normal incrementals from
your ADSM client nodes to your ADSM server? I've contended all along with
the network people that a 1st backup of a new NT-based client/node with
approximately 8GB of data should not take DAYS, and should not experience
MULTIPLE time-outs --- if you crunch the numbers, the rate is about 0.636
GB/hour. I'm not a network guru, but even this is much, much lower than I
had expected when the router was 1st purchased.

Environment:   ADSM server - MVS OS/390
          TCP/IP
          16 Mb Token ring (non-switched)
          Cisco 7000 series router (7507) with one blade dedicated to ADSM
traffic only
Clients:       Mostly NT, Lotus Notes on NT, UNIX/Sun, UNIX/AIX, Novell
(right now only the NT-based machines are          being backed up with
ADSM; the remaining machines are pending implementation --- I don't think
there's a           window BIG enough to handle the backups from the other
machines)

I realize there are no network benchmarks available for ADSM given the
infinite number of network and environment configurations ADSM may run
under. But I'm most interested in hearing about folks who are experiencing
the same thing (and how you're correcting it, if possible), and who out
there is experiencing great transfer rates (like the guy who had
24-25GB/hour via ATM) and would like to share with the ADSM world your
success story! I'm "building my case" for further investigation.

Thanks much!

C.L.Cannam
Storage Management
GENAM/St. Louis, MO/USA
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