English Chinese (Traditional) (zh_TW)
In RAID0, data is split into blocks that are written across all the drives in the array. As seen in the following illustration, instead of having to wait on the system to write 256k to one disk, RAID0 can simultaneously write 64k to each of the four disks in the array, offering superior I/O performance. This performance can be enhanced further by using multiple disk controllers. 在 <acronym>RAID0</acronym> 中,資料會被切割成數個資料區塊 (Block) 寫入到磁碟陣列中的每一個磁碟機。如下圖所示,取代以往等候系統寫入 256k 到一個磁碟的時間, <acronym>RAID0</acronym> 可以同時寫入 64k 到磁碟陣列中四個磁碟的每個磁碟,這可提供優異的 <acronym>I/O</acronym> 效能,若使用多個磁碟控制器可增加更多的效能。
RAID1, or _mirroring_, is the technique of writing the same data to more than one disk drive. Mirrors are usually used to guard against data loss due to drive failure. Each drive in a mirror contains an identical copy of the data. When an individual drive fails, the mirror continues to work, providing data from the drives that are still functioning. The computer keeps running, and the administrator has time to replace the failed drive without user interruption. <acronym>RAID1</acronym> 或<emphasis>鏡像</emphasis>是一項寫入相同資料到超過一個磁碟機的技術。鏡像通常用來保護資料因磁碟機故障導致的損失,每個在鏡像中的磁碟機會擁有完全相同的資料,當各別磁碟機故障時,鏡像會繼續運作,由還可運作的磁碟機提供資料。電腦會繼續執行,等到管理者有時間更換故障的硬碟,而不會被使用者中斷運作。