如何增加家目錄容量又能夠降低全毀的風險呢? - 儲存設備

By Adele
at 2015-04-02T15:39
at 2015-04-02T15:39
Table of Contents
事情是這樣的:
我原先有一顆 1TB 的硬碟,分成 /, /boot, /home 三個 ext4 的磁區,
但是呢,因為迷片太多的關係(重點誤!),/home 快要爆掉了...
所以就又再買了一顆一模一樣 1TB 的硬碟。
重點來了~~~
假如我弄成 RAID 0 ,風險很高,而且只要壞其中一顆就毀了,
因為 RAID 0 會把同一個檔案切成很多小塊放進不同的磁碟中。
假如用 JBOD 的話,風險也高,因為只要第一顆壞了就GG了,
因為磁碟分割表通常放在第一顆......
請問有沒有一種折衷辦法是這樣的:
/dev/sdb 也擁有自己的磁碟分割表,
也就是說,即使 /dev/sda 壞了也不被影響。
最重要的是,
同一個檔案不會被拆分到數個硬碟上,頂多一次損失一半的檔案。
(我都有定期備份,損失一半指的是連備份的也他x運氣不好到也壞了的情況)
順便希望的是,
可不可以讓 /dev/sdb 只能夠被分配到 /dev/sda 中的 /home 呢?
謝謝哦~
--
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儲存設備
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