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Dictionary / PC / Hardware / 硬碟 /

何謂 RAID 3、RAID 4?

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    何謂 RAID 3、RAID 4?

    ???具有容錯的功能外,必須由3台以上的硬碟組成,當磁碟陣列中的一台硬碟故障時,只要更換新的硬碟後,系統就能回寫舊有的資料。

    每台硬碟的容量必須相同,否則以最小的硬碟容量計算,當使用3顆硬碟組成磁碟陣列時,能使用的硬碟容量為2顆,能使用的硬碟容量。計算公式為N-1台(RAID 3的區段以 byes 計算,RAID 4則以 block 為計算單位)由於同位檢查碟的關係這兩種方法是比較少用的。
    • Keywords : 關係這兩種方法, 計算公式為N, 系統就能回寫舊, 硬碟容量計算, 硬碟容量為2顆, 當磁碟陣列中, 當使用3顆硬碟組成磁碟陣列, 由於同位檢查碟, 為計算單位, 容量必須相同, 否則以最小, block
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    2009-02-14T06:40:46+0000


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