Western Digital全球首發15TB還是八碟裝 - 3C
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By Sandy
at 2018-10-26T00:02
at 2018-10-26T00:02
Table of Contents
一年前Western Digital旗下HGST發布了全球第一款14TB機械硬碟“UltraStar Hs14”
現在Western Digital又搶先站在了15TB硬碟的至高點上,推出了新的Ultrastar DC
HC620系列。
Ultrastar DC HC620 15TB定位於企業級市場,主打密集寫入型應用
技術上繼續採用(Host-Managed SMR)技術、HelioSeal記錄技術
號稱比上一代單位容量的待機功耗降低最多31%。碟片儲存密度為1108Gb
相比於此前14TB型號的1034Gb增加了約7%,正好對應從14TB到15TB,因此內部還是多達
八張碟片封裝。
新硬碟仍是3.5寸規格,擁有SATA 6Gbps、SAS 12Gbps對應,轉速7200RPM
快取512MB,內部最大持續傳輸率從233MB/s提升到255MB/s,搜尋時間也從12.0ms加快到
7.7ms。
功耗和14TB保持一致,其中SATA版本待機5.2W、典型負載6.4W,平均每TB 0.35W,而典
型噪音從3.6Bel降低到了2.0Bel。
平均故障間隔時間250萬小時,年故障率(AFR) 0.35%,支援24×7不間斷運行,有限保固
5年。
來源
http://news.mydrivers.com/1/600/600066.htm
XF編譯
14T 剛出就落伍 我大你1T 15T
坐等 16T-20T 時代來臨 單檔案 檔案愈來愈肥
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