資料儲存用的硬碟or 基礎NAS? - 儲存設備

By Noah
at 2014-07-04T18:17
at 2014-07-04T18:17
Table of Contents
名常有在開BT動物機,電腦24小時掛著,外接硬碟也同樣
但也有聽聞NAS對於資料的保護性是大於硬碟的 而且NAS
還可以讓整個BT作業從頭包到尾(下載 儲存 甚至撥放?)
但小弟最近爬爬有關於硬碟與NAS的文章,想請教如果小弟單純
用普通硬碟做儲存用,那有需要進入NAS的領域 改用NAS保護?
會這樣請教是因為 以NAS做陣列 最起碼應該都要有兩顆同容量或者
不同容量的硬碟 但依照演算法 就算兩顆2T去做 我也只會得到
實際能用的2T容量 而不是2顆2T容量的總和 4TB吧
而且 如果其中一顆是750G跟另一顆1TB的搭配 也只會得到750G的可用容量
那以陣列算 這樣子方式等同於用另一顆做備胎的意思吧?
RAID中應該沒有2T+2T去做RAID 還可以得到實際原本的總量4TB的陣列吧
因為這樣想想 那我買兩顆同容量的硬碟 結果實際上只有一顆的容量可供使用
那這樣用一顆硬碟的價值換資料的保護性 感覺有點....
再來也想問 假如我選擇比較入門的NAS 單純做儲存 排除資料保護性這點
CP直會比我以大容量的外、內接硬碟做資料儲存來得好嗎?
因為仍是希望下載 儲存兩者分開管理,想請教最大硬碟容量的用途哪種最適合
小弟
由於還在爬文中,就冒險發了這一篇,還請版上NAS或者硬碟玩家解惑
感激不盡。
感覺 資料儲存也是個很燒錢跟人品的領域啊QQ
--
Tags:
儲存設備
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