得不到准确值,只能估算。
方法一:
估算:
1 / (average latency in s + average seek time in s)
阵列:
(Total Workload IOPS * Percentage of workload that is read operations) + (Total Workload IOPS * Percentage of workload that is write operations * RAID IO Penalty)
方法二:
iostat
方法三:
sar