Thanks Simon Yeah, I had implemented the value to be brought down to 30 seconds which helped immediately. The problem we have now encountered is no longer with TIME_WAIT and now with CLOSE_WAIT.
You don't perhaps know the default a windows 2k box is for max tcp connections. A little birdie has told me it is ten which at first thought seem to be very low. My thinking is increase the max number of open tcp sockets and alleviate the issue ??? Regards Dave -----Original Message----- From: WEAVER, Simon [mailto:[EMAIL PROTECTED] Sent: 31 October 2006 06:31 To: Clooney, David; veritas-bu@mailman.eng.auburn.edu Subject: RE: [Veritas-bu] CLOSE_WAIT David I have a Support Call open, in regards to Media errors, and the Symantec Engineer said the following..... Simon, Tcp tuning parameters changes the wait time for a port which is in a TIME_WAIT state. A port will stay in this state for 4 minutes by default. Decreasing this time allows the port to be closed sooner rather than later allowing the port to be re-opened or stay as listening if need be. I noticed VMD (the volume manager daemon process) in TIME_WAIT state. If NetBackup VMD is timing out when trying to write to the next media or when trying to write header information, this could possibly cause problems. NOTE: For more information see Microsoft article # Q120642 at the following URL: TCP/IP and NBT Configuration Parameters for Windows 2000 or Windows NT http://support.microsoft.com/default.aspx?scid=kb;en-us;120642 I think this is the same link Steve sent, but does any of this help answer your Q - For the record, I have NOT implemented this yet, as I have made one major change and want to review this before applying any other fix straight away (otherwise applying multiple fixes at the same time, means I have no trackable method of knowing what fixed the root problem). Regards Simon Weaver 3rd Line Technical Support Windows Domain Administrator EADS Astrium Limited, B23AA IM (DCS) Anchorage Road, Portsmouth, PO3 5PU Email: [EMAIL PROTECTED] -----Original Message----- From: Clooney, David [mailto:[EMAIL PROTECTED] Sent: 30 October 2006 10:44 To: veritas-bu@mailman.eng.auburn.edu Subject: [Veritas-bu] CLOSE_WAIT Hi All Scenario : Master server Solaris 8 Media server windows 2000 Over the past weekend we encountered a whole bunch of 219's on jobs using a particular media server, a netstat on the media server provided the below snapshot. The CLOSE_WAIT entries seemed to hang around for ages, additionally hogging sockets. On the master server everything was plodding along as usual. Q1. can anyone explain why these sockets on the media server do not close fully and hang around for quite sometime ? If indeed the master server has not finalised comms, what (on the master) would be keeping the socket open between the two. Q2. Does anyone know the default setting for the maximum number of simultaneous tcp connections on windows 2000? Q3. If I was to add the registry key to tcp parameters "TcpNumConnections" , what guidelines could I follow to determine the number of connections ? Q4. Not so long ago on the same windows media server I added the registry key to tcp parameters "TcpTimedWaitDelay" in order to clear TIME_WAIT more quickly. Are there any known issues with windows 2000 and tcp connections that I'm not aware off ? Much appreciated David Clooney TCP media_server:bpcd media_server:795 ESTABLISHED TCP media_server:bpcd media_server:834 ESTABLISHED TCP media_server:bpcd media_server:868 CLOSE_WAIT TCP media_server:bpcd media_server:991 CLOSE_WAIT TCP media_server:bpcd master_server:551 CLOSE_WAIT TCP media_server:bpcd master_server:562 CLOSE_WAIT TCP media_server:bpcd master_server:591 CLOSE_WAIT TCP media_server:bpcd master_server:610 CLOSE_WAIT TCP media_server:bpcd master_server:645 CLOSE_WAIT TCP media_server:bpcd master_server:696 CLOSE_WAIT TCP media_server:bpcd master_server:768 CLOSE_WAIT TCP media_server:bpcd master_server:807 CLOSE_WAIT TCP media_server:bpcd master_server:829 CLOSE_WAIT TCP media_server:bpcd master_server:830 CLOSE_WAIT TCP media_server:bpcd master_server:867 CLOSE_WAIT TCP media_server:bpcd master_server:904 CLOSE_WAIT TCP media_server:bpcd master_server:919 ESTABLISHED TCP media_server:bpcd master_server:976 ESTABLISHED TCP media_server:bpcd master_server:982 CLOSE_WAIT TCP media_server:bpcd master_server:1008 ESTABLISHED TCP media_server:bpcd master_server:1023 ESTABLISHED Notice to recipient: The information in this internet e-mail and any attachments is confidential and may be privileged. 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