核對他的Technical Guidebook..
連設定方式都一模一樣...
Cut-through IO (CTIO)
o Performance boost (up to 2X IOPS performance)
o Optimized for superior IOPS of SSDs over HDDs
o Ideal for small-block random workloads
o Easy to enable
Cut-through IO (CTIO) is an IO accelerator that boosts the throughput of devices connected to the PERC Controller. It is enabled through disabling the write-back cache (enable write-through cache) and disabling Read Ahead.