Raid 5 or not

各位師兄,新手想買個4盤,想問 raid 5 好D定係用RTRR定期將硬碟1copy去硬碟2,硬碟2copy去硬碟3etc? 雖然減少了可用空間,但應該非常安全?請指教。謝謝

raid6

but still far away from 非常安全

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買一個4bay或買2個2bay好

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本帖最後由 rabbit82047 於 2016-3-20 10:04 編輯

raid6 50% storage capacity, safe up to 2 disks failure
raid10 50% storage capacity, safe up to 1.75 1.5 disks failure
(0.25 0.5: probability of failing 2 disk of the same mirror set)

raid6 performance dependent on raid card.
raid10 performance should be better without a proper raid card.

Safest:
raid1 + backup to hdd3 & 4, 25% storage capacity, safe up to 3 disk failure
(if failing the array and one of the backup will result in data loss)

- end -

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Dear Ching,
For me, I run Raid 5. Then, I back some folder in Raid5 Regularly to external Harddisk.

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多謝師兄解釋及意見

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raid 5 = play with fire + good luck.:titter:
raid 1 or 6 is recommended

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