LSI卡如果設起來效能不好,請留意以下設定
讀取效能不好
- Stripe size 請放大到128 or 256
- Read Policy 請開啟Read Ahead
寫入效能不好
- 請開啟Write Block
- 有電池-將Write Block with battery開啟
- 無電池-請不要開啟Write Block with battery or 不要開啟Write Through for Failed or missing battery
下圖是WD 750aas 4棵Raid 5 with LSI 8344ELP non-battery設定