[Samba] An Interesting Issue in Samba Performance

L. Mark Stone LMStone at RNoME.com
Mon Aug 2 13:31:01 GMT 2004


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On Friday 30 July 2004 01:12 pm, Nicholas Butler wrote:
|
| 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.
|
| A Quick power cycle of the Netgear switch later , and the performance
| was back where it should have been !

Our experience is that many/most NICs do not autonegotiate with 
many/most switches properly all of the time.

What you saw is indicative of that. Rebooting the NIC just forces 
another autoneg...

So, we no longer rely on autoneg. For all of the servers we manage we 
set the NICs forced to whatever the network switches are capable of.  
Most workstations don't use enough bandwidth to make this an issue, but 
for the ones that do, we force the NIC settings as well.

Depending upon the NIC, we use either ethtool of mii-tool to get the job 
done.
- -- 
_____________________________________________
A Message From...  L. Mark Stone

Reliable Networks of Maine, LLC
477 Congress Street, 5th Floor
Portland, ME 04101
Tel: (207) 772-5678
Web: http://www.RNoME.com

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