I would still try them on another switch bypassing the one you currently use. Sometimes switches fail in stages. I have seen it happen before where ports on a switch just start going bad. It just seems hard to believe that there could be any other reason that 7 mail servers just started failing. The only other things I would try is removing the NIC and reinstalling it (just through the control panel) and upgrading to the latest service pack or reinstalling the latest one (I think you said you were at NT 4 with SP 6) but neither of these solutions seem like they would fix an issue that 7 servers are having. If you do try them on another switch and they work out I would get rid of the bad switch all together instead of using the remaining good ports. If there is no other switch available switch the servers that are failing over to ports that have servers that are working fine. Beyond this I would think a look at the router and or firewall would be in order. You or your provider should be able to look in the router to see the logs there to see if packets are getting screwed up somehow.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Shad Pulley Sent: Friday, September 05, 2003 12:36 PM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] Mail servers unite and crash just before the holiday weekend!!! They are all on the same core switch with over 100 other servers including other imail servers.... Thanks, Shad D. Pulley Sr. Systems Engineer IKANO Communications [EMAIL PROTECTED] 801-415-8023 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Daniel Donnelly Sent: Wednesday, September 03, 2003 3:43 PM To: [EMAIL PROTECTED] Subject: Re: [IMail Forum] Mail servers unite and crash just before the holiday weekend!!! Shad, Re: > The log files show the 10054 and 10053 errors > around the times that the service spikes. Are those errors triggered by any particular user, IP address, browser, request for a particular page, etc... (look a bit farther back in the logs). I would have to agree on the network issue as being the probable cause. Leave that to others who know more than I... hmmm... are all 7 on the same network and branch or share something else in common? Can you move one closer to the internet and see what that does? (just a few ideas...) Dan Donnelly ----- Original Message ----- From: "Shad Pulley" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, September 03, 2003 4:19 PM Subject: RE: [IMail Forum] Mail servers unite and crash just before the holiday weekend!!! > I think you're right.. It's not a message in any particular mailbox. I > think it's a network/connection issue. A kill command will usually work if > we get it in quick enough. The log files show the 10054 and 10053 errors > around the times that the service spikes. > > The boxes are virus free and we abandoned port 80 back when code red was > flying around. It's on the default 8383 now. It kind of builds up to > eventually crashing, but it happens in the matter of a few minutes, not > hours... I have diskeeper running on the boxes. I can't say that it keeps > up, but it runs every night between 9PM and 8AM. > > > Keep in mind that there are 7 servers I'm talking about here, not just 1.. > So no hardware changes nor any significant software changes. No event logs > so to speak.. Just the terminated unexpectedly errors from when we issue > the kill command. > > Thanks for all the ideas, > > Shad D. Pulley > Sr. Systems Engineer > IKANO Communications > [EMAIL PROTECTED] > 801-415-8023 > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Daniel Donnelly > Sent: Wednesday, September 03, 2003 1:46 PM > To: [EMAIL PROTECTED] > Subject: Re: [IMail Forum] Mail servers unite and crash just before the > holiday weekend!!! > > I think you and Len are going down the wrong path. > > If iwebmsg.exe is showing high CPU, does a stop/start of the service > 'fix' things (at least for a little while)? If it does, that is good, > and the logs may tell us what is happening. With the W2*.log files and > the computer time when CPU starting going high, the timestamped logs > can show connections and actions requested and taken and with a few > samples, you may even spot a trend/cause. > > By any chance is your Web Messaging running on port 80? If so, it > could be under attack. I think it was Nimbda, and Code Red, a while > back that gave these symptoms. Maybe other forms of attacks could show > them, too. If I remember, W2 logs showed unusual requests for system > folders/files... Someone else here in the forum also reported that not > using port 80 helped them on some other Web MSG issues... > > Are you seeing increasing resource usage over time, by iwebmsg? Does > it all free up when you stop/start the service? > > Has the hard drive (storing the users folders) been recently > defragged? If not, it cannot hurt and may have significant positive > effects. > > Has anything new been added to the computer or has any change been > made in its configuration, recently? Checked for virus/Trojans/worms > on the system? Maybe something got in that you have not yet detected? > > Have you checked Event logs? Any errors and warnings should be > rectified, ASAP. Especially, if they begin to appear around the same > time of this IMail problem. > > HTH, > Dan Donnelly > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
