We encountered problem while enabling the alwaysOn availability:
We could copy smaller files (generally <900MB) but copying files (these are MS SQL backup files )
>1GB will drop/freeze between the two VMs running MS SQL 2012.
We overcame this by disabling 'auto-tuning feature' :
“netsh int tcp set global autotuninglevel=disabled”
What's the implication/impact of disabling auto-tuning?
What's the root cause that the copying freeze/drops for files >1GB ?
Is there a VMware or MS KB article for this?
We're on vSphere 5.0 Upd 3 & the VMs are on Win2012 (not sure if it's Standard or DC edition)