On Fri, Jul 30, 2004 at 06:12:13PM +0100, Nicholas Butler wrote: > Okay Ive had a day of it today , and I thought I would share this little > support event experienced today. > > A Client site of mine runs Samba 2.2.8a connecting to a series of > Windows XP boxes via a Netgear Switch/Hub. > > Earlier in the week they reported that certain applications, most > notorously Symantec ACT were performing at super slow speeds. > > A non site investigation showed that any file opened from the Server , > copied to the desktop client was being copied at super slow speeds, as > if all the bandwidth on the network had gone. > > Checking configuration of the smb.conf and local machines proved no use > at all and for a part of the hour I scratched my head as I tried to > understand what was slowing down all file open, copy and move > performance over the network. > > Since local file activity ( on the server or client ) was more than > adequate I was non plussed, until I reasoned that the only other device > between Client and Server was the Network Switch. > > A Quick power cycle of the Netgear switch later , and the performance > was back where it should have been ! > > Just a salutory tail to tell really since the problem was neither > Server or Client based, but the architecture was clearly malfunctioning. > > Does anyone know of a test I could have carried out in order to trouble > shoot that particular issue ?
When I used to work on problems like that for Vantive all I did was put a sniffer on client and server and look for dropped packets. Once I found one or more on a lan segment I knew there was an equipment problem. Few people bother to do this these days - even though the lan equipment has got cheaper (and worse) than it used to be. Jeremy. -- To unsubscribe from this list go to the following URL and read the instructions: http://lists.samba.org/mailman/listinfo/samba
