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VMware network performance on DL385G6

 
jim alexiou
Occasional Contributor

VMware network performance on DL385G6

I've found that VM network performance on DL385G6 (VI3.5 ESX) is much slower than same VM running from DL360G6 (vSphere 4 ESXi). The VM's are Win2003 servers. My test is mapping a network share and running testio utility. DL385 gets 10 to 15MB/s while the DL360 gets 50 to 55MB/s. I tried the enhanced VMXNET but no difference. Any ideas? Thanks.
1 REPLY
u84823
Regular Advisor

Re: VMware network performance on DL385G6

Check your RAID controller has the battery-backed write cache option installed (BBWC) and configured as write-back for the logical drive in question.