SSD控制晶片 Marvell 跟 SANDFORCE - 儲存設備
By Donna
at 2012-07-12T03:37
at 2012-07-12T03:37
Table of Contents
倒也是未必,原因:
1) SF各系列對Flash die source都很敏感,不只是外面吵的同步/非同步那麼簡單,
玩SF玩得好的,Flash測試治具買不完,沒砸錢的,肯定玩不好(例如威X)。
2) firmware要針對die source微調,這一點從SSD問世以來一直都沒變,譬如說針對
T/S/疊die/M/I/downgrade的,都有不同firmware要調,夠大咖還可以要求SF出專
門的pkg做flash sorting,那個就比治具還複雜,只能空一條SMT等著產品做出來
燒機跑I/O Meter來衝才知道穩定性到哪...
3) 沒把SSD/SF當主力的廠商,下場都很慘,因為那些PM想法是「我只是兜來玩玩加減
賣」,鐵例就是X價屋某個短線品牌,SF系產品跟著RMA Rate崩盤,被抱怨到爆炸,
淪落到在拍賣亂撒貨...
SF其實不差,但DRAM/FLASH價格下太快,顆粒價格下1%時,pendrive頂多mount 1~4顆,
FOB價格頂多差4%,但SSD因為channel+成對,成品至少要16~32顆起跳,FOB價格一次就
會下16%~32%,廠商最終只能涉險找爛顆粒來賭,這一點問IC代理商業務應該超清楚...
有興趣的人可以查一下SF背後的金主是誰,彭博翻一翻應該頗有玩味之處。
至於Marvell系,故事就更多了,等哪天M4 phase out了再講。
: 因為Sandforce提供整套的Solution,切入難度低,你看隨便一間模組廠也在產
: 一堆小廠也在產,你只要把顆粒買來照工版layout好,刷上Firmware就可以賣
: 每間模dram組廠都在做,因為做起來也差不多
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Tags:
儲存設備
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at 2012-07-13T12:06
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