您好
我現在要寫KPI, 資料庫可用性我想寫90%, 有沒有比較實例可以參考
參考微軟的 Availability 的算法
你再決定你的 KPI 要填多少
Availability = (MTBF – MTTR) / MTBF For example, if a server fails two times over a six-month period and is unavailable for an average of 20 minutes, the MTBF is three months or 90 days and the MTTR is 20 minutes. Therefore, Availability = (90 days – 20 minutes) / 90 days = 99.985 percent.