ADSM-L

Novell performance and TCP/IP problems

1997-04-03 01:57:11
Subject: Novell performance and TCP/IP problems
From: Trevor Foley <Trevor.Foley AT BANKERSTRUST.COM DOT AU>
Date: Thu, 3 Apr 1997 16:57:11 +1000
Trevor Foley
03/04/97 16:57
From:
On:

Hi,

I've got a feeling that this has been discussed before, but I couldn't find
any entries going back through the list for 4 months or so.

We are starting to implement ADSM for our Novell servers. To date we
haven't had a lot of success. First, some information about our
environment.

   Server is 2.1.5.12 running on AIX 4.1.4
   Communcations is entirely TCP/IP
   The network (for the Novell servers) is 10mbit ethernet
   Client version is 2.1.0.6

We have two problems:

   We our getting extremely poor performance, in the order of 200mb/hour.
   As a comparison, we are getting in excess of 1gb/hour from some NT
   servers (admittedly faster CPU, disks, etc.). We have checked the things
   mentioned in the Performance Tuning Guide. The only thing that we have
   changed as a result of that was the TCP/IP MTU size (from 512 to 4000).
   The MTU was already set in excess of 4000 on the Novell servers. The
   volumes on these servers have 10-20 thousand files.
   We are getting a number of TCP/IP failures as show below:

27-03-1997 03:43:45  TcpFlush: Error 60 sending data on Tcp/Ip socket
39358524.
27-03-1997 03:43:45  sessSendVerb: Error sending Verb, rc: -50
27-03-1997 03:43:45  TcpFlush: Error 32 sending data on Tcp/Ip socket
39358524.
27-03-1997 03:43:45  TcpFlush: Error 4 sending data on Tcp/Ip socket
4294967295.
27-03-1997 03:43:45  sessSendVerb: Error sending Verb, rc: -50
27-03-1997 03:43:46  ANS4017E Session rejected: TCP/IP connection failure
27-03-1997 03:43:46  ANS4847E Scheduled event 'BACKUP' failed.  Return code
 = 1.

Any clues?


Trevor
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