Prerequisites for below vcenter services before enabling them. SIOC- So how does it work? At a basic level SIOC is monitoring the end to end latency of a data store. When there is congestion (the latency is higher than the configured value) SIOC reduces the latency by throttling back VM’s who are using excessive I/O. … Continue reading Prerequisites for SIOC,DRS, HA, Fault Tolerance NIOC.