Tim

Whenever we've seen this sort or performance and those errors at our shop,
it's invariably been the auto-negotiation of the ethernet speed and duplex
mode. Eg if the NIC is supposed to be running 100Mbits/s and Full duplex,
then force this explicitly on both the NIC and the ethernet switch (or
whatever).

If you leave them to auto-negotiate (especially if both are set to
auto-negotiate) then you're liable to finish up with the NIC running at
half duplex and the switch port running at full duplex. This impacts
performance massively, especially as during a client backup there is data
being sent in both directions.

Regards
Neil Schofield
Yorkshire Water Services Ltd.




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