Mark; run the command "netstat -v" on the backup interface and take a look at - Drop packets - Recieve errors - Transmit errors - CRC errors - DMA overruns - The recieve and transmit queue size. - Any collisions (single or otherwise)
Like others said, Hard code all the devices involved to 100 MB (no auto_negotiate). I believe this change will require a reboot of the system. - Try and get used to the different switches of the "netstat command" - Also, run a traceroute (tracert in the case of NT) from both sides and see if you are using the proper route. If not you will need to change routing table. Hope this helps. Regards; Hussein M. Abdirahman AIX administrator IrwinToy LTD. Toronto - Canada -----Original Message----- From: Mark Stapleton [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 24, 2002 3:45 PM To: [EMAIL PROTECTED] Subject: Re: HELP!... What processes can/can't run simultaneously and what throttles throughput on backup sessions ? From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of Barbara Andrews > Even with client compression > turned on, the best throughput rate we've seen is 566 Kb/sec., > and that was > when the backup was run on a Sunday when there is very little activity on > all systems involved (client, server, network). When other backups are > running during the night, the best we've seen is 368.72 Kb/sec. This > results in the backup for this one node taking at least 17 hours to run to > completion. I've often said that TSM is one of the finest problem finders in the tech industry today. It will show you bus problems, adapter bottlenecks, network missettings, and SAN misconfigurations faster than anything else in the market. Your network problems doubtless existed prior to the change in your backup schema; you just didn't see it because you didn't stress the network with it. I would say that you need to check the speed and duplex settings for *all* network hardware in the line of the problem--the Notes server's NIC, the switch port that it's plugged into, the switch port that the TSM server is plugged into, and the NIC for the TSM server. They should (in most cases) all be set to 100 full duplex for a 100mb Ethernet network. -- Mark Stapleton ([EMAIL PROTECTED]) Certified TSM consultant Certified AIX system engineer MCSE