[操作疑難] Raid 6 or Raid 10 (4 drives)

本帖最後由 kenn 於 2018-5-14 11:52 編輯

I am considering to set up a hardware raid array with four 10TB disks. I need a faster read than write performance. Which raid suits me? Safety of data is also important. Thanks in advance.

RAID10

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Thanks. But web info stated raid 10 can tolerate only one disk failure. Is it true?

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Thanks. But web info stated raid 10 can tolerate only one disk failure. Is it true?
kenn 發表於 2018-5-14 11:54



    Yes and RAID6 can tolerate two disks failure.

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For safe and performance, RAID 6 is better than RAID 10.

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SAFETY? Please backup your data.
RAID is not for safety concern.

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I have the same question before, long long time ago.  My solution now is double Raid5 or Raid5+JBOD, depending on how important your data is.
For such practice, you need 5-6 10T's for your 20T data...

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Raid 6 跟 Raid 10 都是20TB,
Raid 6 可以任意失效兩顆,但Raid 10內同一組raid1的兩顆HDD失效就 total loss了。
而讀取速度理論上是一樣。

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Raid 6 跟 Raid 10 都是20TB,
Raid 6 可以任意失效兩顆,但Raid 10內同一組raid1的兩顆HDD失效就 total lo ...
hkjake 發表於 2018-5-15 15:40



    理輪上係RAID6快
RAID卡勁就可以做到3隻全速
RAID10就2隻全速

如果行4隻係10同6簡一定就行10
6除左要張卡勁 仲要考慮重建速度 後備卡等等

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