You could want to check your NIC and ports in the HUBs: should be 100 Mb/s,
full duplex, FIXED,

in our network, if not like that, the speed goes down to 1/10e,

>               René Lambelet
>               Center Information System, Nestec Ltd
>               tel + 41 21 924 3543
>               fax + 41 21 924 1369
> visit the Nestle site: http://www.nestle.com
> 
> 
> -----Original Message-----
> From: Gent, Chad E. [SMTP:CEGent AT LMUS.LEGGMASON DOT COM]
> Sent: Monday, November 05, 2001 1:29 PM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      Re: NT Performance Problem with Tivoli Client 3.7.x
> 
> Hey Guys,
> 
> Thanks for the help.  I add the following changes to my dsm.opt file.
> 
> LARGECOMmbuffers   Yes
> TCPBuffsize        31
> TCPNodelay         Yes
> TCPWindowsize      63
> 
> Still not much of a change.  Does any one have any other Ideas.  I have
> attached some information from dsmsched.log info to this post. This will
> show you the network transfer rate.  I guess I could just put a sniffer on
> this box and see what its doing.  But the main point is I have 10 servers
> just like this one. Is there any settings I check on the AIX box?
> 
> 11/05/2001 03:40:55 --- SCHEDULEREC STATUS BEGIN
> 11/05/2001 03:40:55 Total number of objects inspected:  659,189
> 11/05/2001 03:40:55 Total number of objects backed up:      156
> 11/05/2001 03:40:55 Total number of objects updated:          0
> 11/05/2001 03:40:55 Total number of objects rebound:          0
> 11/05/2001 03:40:55 Total number of objects deleted:          0
> 11/05/2001 03:40:55 Total number of objects expired:          4
> 11/05/2001 03:40:55 Total number of objects failed:           1
> 11/05/2001 03:40:55 Total number of bytes transferred:     3.24 GB
> 11/05/2001 03:40:55 Data transfer time:                20,832.29 sec
> 11/05/2001 03:40:55 Network data transfer rate:          163.10 KB/sec
> 11/05/2001 03:40:55 Aggregate data transfer rate:        101.13 KB/sec
> 11/05/2001 03:40:55 Objects compressed by:                    0%
> 11/05/2001 03:40:55 Elapsed processing time:           09:19:54
> 11/05/2001 03:40:55 --- SCHEDULEREC STATUS END
> 11/05/2001 03:40:55 --- SCHEDULEREC OBJECT END NTSERVERS 11/04/2001
> 18:00:00
> 11/05/2001 03:40:55 Scheduled event 'NTSERVERS' completed successfully.
> 11/05/2001 03:40:56 Sending results for scheduled event 'NTSERVERS'.
> 11/05/2001 03:41:00 Results sent to server for scheduled event
> 'NTSERVERS'.
> 
> 11/05/2001 03:41:00 Querying server for next scheduled event.
> 11/05/2001 03:41:00 Node Name: MDCAL3
> 11/05/2001 03:41:00 Session established with server ADSM: AIX-RS/6000
> 11/05/2001 03:41:00   Server Version 3, Release 7, Level 4.0
> 11/05/2001 03:41:00   Server date/time: 11/05/2001 03:45:11  Last access:
> 11/04/2001 18:25:11
> 
> Thanks In Advance
> 
> Chad Gent
> Legg Mason Network/Server Support
> cegent AT leggmason DOT com
> 
> 
> 
> -----Original Message-----
> From: Joshua S. Bassi [mailto:jbassi AT IHWY DOT COM]
> Sent: Thursday, November 01, 2001 5:00 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: NT Performance Problem with Tivoli Client 3.7.x
> 
> 
> Actually on NT 4.0 make this line read:
> 
>    TCPWindowsize      63
> 
> 
> -----Original Message-----
> From: Gent, Chad E. [mailto:CEGent AT LMUS.LEGGMASON DOT COM]
> Sent: Thursday, November 01, 2001 2:49 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: NT Performance Problem with Tivoli Client 3.7.x
> 
> 
> Hello,
> 
> I have 10 NT 4.0 clients backing up to a AIX TSM Server running version
> 3.7.2.4.  These NT clients are configured to backup to a GIG E card in
> the
> AIX server (should be plenty fast enough).  Each client is setup for 100
> mb
> Full duplex on their network card. No auto-negotiate.  My clients are
> getting very poor network performance.  Lets take one clients
> unparticular.
> It backs up about 15 GB a night but only gets a Aggregate  Transfer Rate
> of
> 50.25 KB/second.  The Network Transfer rate is about 4,000 KB/second.
> Is
> there anyway for me to get a higher Aggregate rate?  I need these
> machines
> to backup faster.  Can I tweak MTU setting or something for NT?  Any
> help is
> greatly appreciated.  Below is my option file from 1 of my clients.
> 
> Chad Gent
> Legg Mason Network/Server Support
> cegent AT leggmason DOT com
> 
> NODENAME MDCAL3
> TCPSERVERADDRESS aixbackup_g.leggmason.com
> Resourceutilization 1
> Exclude "*:\...\ea data. sf"
> Exclude "*:\...\pagefile.sys"
> Exclude "*:\...\ibmbio.com"
> Exclude "*:\ibmdos.com"
> Exclude "*:\msdos.sys"
> Exclude "*:io.sys"
> Exclude "*:\...\system32\config\*.*"
> Exclude "*:\...\system32\config\...\*"
> Exclude.dir "C:\winnt\profiles"
> backupregistry yes
> PASSWORDACCESS GENERATE
> DOMAIN ALL-LOCAL