Saving/accessing files on fileserver slow for many people. Restarted server, still not better.

hi guys

On our site, people sitting on various floors are all complaining of slow speeds when they save or want to access files on the fileserver mainly (windows 2003). This is also attached to a SAN.

There are around 200 users, of which 100 are complaining of slow speeds. Our department is fine though and we all access the same file server. However, we are connected via a separate network switch.

My main question is that those people complaining are possibly connected to the same switches. Is there a way I could connect something to those switches to find out whether something is broadcasting on the network? I've never done that before so is there any direction you can give guys? The switches are all various models/makes and most of them are non-IP managed switches (i.e. they were just plugged in without any config, but they are chained).

Cheers
Yashy
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YashyAsked:
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pjamCommented:
Sounds like with that many users you need better switches, at least 4 48 port Cisco 3850 to start.  Not cheap for sure, but worth it in the end.
You also need to consider upgrading 2003 soon.
what kind of SAN connection?  IF SCSI that probably will not be compatible moving forward.  I just found out the hard way when upgrading to 2012 for my BackupExec Server, no Array Controllers for SCSI.
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YashyAuthor Commented:
Thanks man. However, we're getting complaints on the network now in general which makes me think it's a broadcast storm or Bad TCP.

Can I get wireshark running and connect to each switch and run it to see if I can analyse bad packets?
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pjamCommented:
Yashy,
Do you have any what I call Hubs (usually NetGear 4 or 8 port) connected to a jack that goes to your patch panel.  That will cause that also.  All wall jacks (computer connection) should go to a patch panel and then to Network Switches.  And wiring & patch cables should be CAT 5, 5E.  Or CAT6 if patch panel is CAT 6.
Not familiar with WireShark, tried it once and was not clear how it worked.  May be worth a separate post if above does not help.
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