Tag Archives: Flow Control Check

NETAPP vs VMWARE FLOW CONTROL DILEMMA

vQuicky

> Performance improves were seen on environments with ESXi 5.1/NetApp/10G switches having

Flow control disabled

> VMware recommends leaving flow control enabled while NetApp best practice recommends disabling it if using 10G switches.

> VMware recommends investigating pause frames and if too many were found – indicates at an underlying problem.

flowcontrol

 

inDepth

We had recently seen some random datastore drops and issues in our virtualized environment which had a backend Netapp storage. Upon investigation and some deep-dive it was found that flow control was enabled on the entire stack.

This is another article
worth looking – talks about NetApp sending too many pause frames.

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