WD今年將推出20TB HDD:HAMR革命快降臨 - 3C
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By Bennie
at 2019-09-06T00:01
at 2019-09-06T00:01
Table of Contents
隨著Seagate、Toshiba先後推出16TB容量的HDD
現今的垂直磁道PMR機械硬碟不論容量還是技術水平應該是到頭了
WD計劃今年出樣18TB及20TB的HDD,會用上MAMR全新技術。
機械硬碟硬盤要想再提高容量,現在的磁記錄技術已經沒多少潛力可挖了
新一代HDD技術會轉向HAMR (熱輔助磁性記錄)技術
不過WD認為HAMR使用雷射輔助加熱,技術複雜,成本高,可靠性也低
所以他們更傾向於MAMR微波輔助磁記錄技術。根據WD所說
MAMR技術的成本和傳統垂直記錄類似,複雜性、可靠性
也都更可控制(99.99%的MAMR磁頭寫入壽命HAMR磁頭高出幾個數量級)
生態方面也不需要更換新的主機管理損耗均衡。
WD最新表態今年底會推出兩款MAMR技術的容量,一款是18TB容量的
還是採用CMR傳統磁記錄,型號為UltraStar DC HC550系列
另外一款容量高達20TB,但是會使用SMR疊瓦式磁記錄技術
型號為Ultrastar DC HC650系列,這就有點讓人不太爽了
SMR技術現在也是過街老鼠,發燒友對SMR硬碟的可靠性並不放心。
WD兩款MAMR硬碟今年內出樣,年底交付給客戶測試
預計明年上半年會正式上市,目前還沒有詳細的規格及售價。
來源
http://news.mydrivers.com/1/644/644602.htm
XF編譯
https://www.xfastest.com/thread-232833-1-1.html
轉眼間10T已經落伍 20T準備來了 裝8K Source剛剛好
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