[quote:de2e262984] Use expensive storage solution (Fiber channel or high end SCSI disk array)LVS-NAT will be the traffic bottleneckNot easily expand to more than 20 nodesOn large site frequently disk i/o and too many connection will come at peak of storage performance [/quote:de2e262984] 如果是硬件的load balance,支撑的节点应该可以更多。不过20已经能支持很大的用户数了