Raid 5 or Raid 10?
- 到底Raid 5或Raid 10好.以目前的SAS Raid Control Card.
Read Raid 5>> Raid 10
Write Raid 5 小輸 Raid 10 (圖待補)
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 Back
- 有電池-將Write Back with battery開啟
- 無電池-請強制開啟Write Back with battery o
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