bianyi｜bandaotichanyezongheng

SSD逐渐蚕食HDD销量。

suizhe 122 tb ssd（gutaiyingpan）dechuxian，yong ssd qudaihdd（jixieyingpan）deqingkuangturanbiandegengjuxiyinli。

dao 2024 niandi，youwujiagongyingshangtuichu 60 tb yishangde ssd，sanjiagongyingshangtuichu 122 tb yishangde ssd：meiguang、qunlianhe sk hailishi。sanxingyongyou 60 tb yishangde ssd，erkaixiahexibushujuzeluohouyu 60 tb yishangde ssd。

zheidui“hddbuhuibeissd qudai”delundianyouheyingxiang？

bencitaolundezhongdianshijiage、xingneng、shujuzhongxinjijiashuliangheyongdianliang。womenwufajianchaqudongqicaigoujiage，yinweicunchuzhenlie oem hechaodaguimozhizaoshangyongyupiliangcaigoudejiagebingbugongkai。danshi，womenkeyilejieyixieyingxiangqudongqisuoyouquandechengbenzhibiao。

womenzaironglianghexingnengfangmianbijiaolesupermicrode 2ru x 12 chacaocipanqudongqijixianghe 2ru x 24 chacao ssd jixiang：

容量

• 2U HDD阵列：12 块 32TB 的 SMR（叠瓦式磁记录）HDD，总计 384TB
• 2U SSD阵列：24 块 122TB 的SSD，总计 2928TB，经过 3:1 的数据去重后可达 8784TB
• 40U 机架搭配 19 个 2U HDD机箱，容量为 7296TB，即 7.3PB
• 40U 机架搭配 19 个 2U SSD机箱，容量为 166896TB，即 166.9PB，是同等HDD机架容量的 22.8 倍

qingzhuyi，250 tb ssd jijiangwenshi，zheijiangshi ssd jijiarongliangmidufanbei。

表现

• 32 TB HDD 延迟：4.16 毫秒
• 32 TB HDD 持续传输速率：269 MBps
• 122 TB SSD 延迟：30 μs
• 122 TB SSD 顺序读取带宽：采用 PCIe gen 5 时为 14,600 MBps ，比 HDD 快 54.3 倍

zaicijichushang，yigezhuangyou 19 ge 2ru ssd jixiang（baohan 122 tb ssd）de 40u jijiakeyiqudaizhuangyou 32 tb cipanqudongqide 23 gejijia，bingtigong 54 beideduqudaikuan。xiangxiangyixia，shujuzhongxindekongjian、lengquehedianlijiesheng，zaijiashangbicipanqudongqijijiagaochu 50 beidexingnengtisheng。

功耗

dangehddhessddegonghaoketongguo solidigmde signal65 yanjiulaipinggu。gaiyanjiuzheyanyugoujianyige 100 zhaowaderengongzhinengshujuzhongxin，caiyong 122.88tb de qlc（sijidanyuan）solidigm ssd、tlc（sanjidanyuan）ssd，huohunhe tlc ssdjiashang 24tb hdddebushufangan，bingsheyou 1pb、5pb he 10pb dezongrongliangxuanze。

duiyu 122.88tb de solidigm qlc ssd，qipingjungonghao（duxiebiwei 90% du、10% xieshi）wei 14.3 wa，xianzhigonghaoedingzhiwei 5 wa；erduiyu 24tb dehddqudongqi，qihuodonggonghaowei 8.2 wa，xianzhigonghaowei 6.5 wa。gaibaogaotongguojisuanzhankongbi，suanchu “meizhonghddleixingdezonggonghaoxuqiushitongguoduihddhuodonggonghaohexianzhigonghaoqujiaquanpingjunzhilaijisuande”。

baogaozhongtidao，“jiyumeizhonghdddexingnenghecunchumidujinxinglezhankongbijisuan。youyuhddcongxianzhizhuangtaizhuanhuandaohuodongzhuangtaisuoxudeshijian，yijigongzuofuzaiduigaotuntuliangdeyaoqiu，womenjiadinghddyijiyuzhixiangguandessdhuancuncengshizhongchuyu 100% dehuodongzhuangtai。”

baogaofaxian，“suizherongliangzengjia，qlc ssdzainengxiaofangmiandeyoushiyufamingxian。yu tlc ssdxiangbi，dangrongliangcong 1pb zengjiadao 10pb shi，qlc ssddenengxiaoyoushizai 3.3% dao 19.5% zhijian。xiangjiaoyuhunhehddhuanjing，qiyoushigengweixianzhu，zaidirongliangshuipingshinengxiaoyoushiwei 32.9%，zaigaorongliangshuipingshikeda 79.5%。”

zongtieryan，yuhunhe tlc ssdhehddxiangbi，qlc ssddenengxiaogaochu 79.5%。qlc ssdhainengshishujuzhongxinneiderengongzhinengjichusheshizongliangzengjia 26.3%。genjugaibaogao：“jinguansuomonidesanzhongshebeijuyoubutongdehuodonggonghaozhi，qizhongdangehdddehuodonggonghaozuidi，dangaomidude qlc shebeiyishaodeduodeshuliangshixianlexiangtongdezongrongliang，congerdaozhizongtigonghaogengdi。”

baogaozhichu：“qlc hdddegaomidutiaozhanlehdddejingjiyoushi，tongshitigongleshancunxingneng，shiqichengweixuduochuantonghddhuanjingjijuxiyinlidetidaipin。”

jiyuci，congrongliang、xingnenghedianlishiyongqingkuanglaikan，shiyonghddgoujianjinxiancunchuxitongsihushibumingzhide。zaizhucunchulingyu，ssdyuhdddejingzhengzhongshancunyijingshengchu。kankan netappyianzhuangde ontap xitongchixuxiangquanshancun ontap xitongdezhuanbianjiuzhidaole。zaikankan xai zaiqi colossus shujuzhongxinshiyong ddnhe vast datadequanshancuncunchuyeshiruci。

danxianzai，quanshancungongyingshangzhengzhunbeidarujinxiancunchushichang。pure storageyiyuyijiapaimingqiansidechaodaguimoshujuzhongxintigongshangqianshuxieyi，gongyingqiquanshancunjinxiancunchuhezhucunchujishu。zheisheji pure gongsizhuanyoude 75tb he 150tb shancunqudongqisheji，erbushishangyongssd。

meiguangzaiqizuixindejiducaibaodianhuahuiyishangzhichu，tayujigaorongliangshangyongssdjiangkaishiqudaishujuzhongxindedaronglianghdd。

zheixiejixiangzhichile pure storage deguandian，jishancunqudongqijiangqudaihddqudongqi。

SSD 蚕食磁盘驱动器

raner，hdd xingyexuancheng ssd buhuiqudai hdd，xijiezhichulesangeyuanyin。

shouxian，ssd jiagenanyiyu hdd jiagekangheng。zhizhi 2027 nian，hdd xiangbi ssd zaimei tb jiageshanghuibaochichaoguo 6:1 deyoushi。buguo，yuzhixiangfandeguandianshi，jinguan ssd decaigouchengbenkenenggaoyu hdd，dankaolvdaodianlixiaohaoheshujuzhongxinkongjiandengyinsuhoudezongtiyongyouchengben（tco）huoxugengqingxiangyu ssd，zhengru solidigm deshangshubaogaosuoshi。

qici，ssd zhizaochannengwufayu hdd zhizaochannengpidi。jibangkeji（trendforce）heguojishujugongsi（idc）yuji，2027 nianzonggongxuyao 3686 eb de nand he hdd rongliang。nand xingyejieshinengshengchan 963 eb，er hdd jianggongxian 2723 eb。ruozheibufen hdd gongxianderongliangyaoyou nand qudai，yuguchengbenjiangda 2060 yimeiyuan。xijierenweidao 2027 nianzheigenbenbukenengshixian。

disan，ssd butaishihejinxian hdd gongzuofuzai，yinweiduoshuqiyegongzuofuzaibingbuxuyao ssd desudu。xijieshiyong“xuyao”yicinairenxunwei。tangruoqiyehechaodaguimoshujuzhongxintongguoshiyong ssd jinenghuodesudu，younenggenghaodiliyongshujuzhongxinfuwuqijichusheshi，tongshijieshengdianlihekongjianchengben，neimetamenhenkenenghuishuoxiangbi hdd geng“xuyao”ssd。pure storage yuchaodaguimoshujuzhongxindejiaoyibiaomingzheizhongqingkuangshiyoukenengde。

zhengyibingfei ssd zhizaochannengyongyuanwufaganshang hdd，ershidao 2027 nian nand zhizaochannengwufayu hdd xiangpipei。ruguo ssd qudaijinxian hdd cunzaiqieshideshichangjiyu——yijuxijiesuoyinyongdeshuju，2027 nianzheiyijiyuduiyingderongliangwei 2723 eb——neimesuizheshijiantuiyi，nand zhizaoshangzai 2027 nianhoujianghuikuochongzhizaochanneng。

congzhongqilaikan，zhizhi 2029 nian，xiangtangmu·kaofulin（tom coughlin）zheiyangdefenxishiyuji hdd dechuhuoliangherongliangxiaoliangjianghuizengzhang。kaofulinxiangwomenbiaoshi：“shide，zheishiwodepinggu。yiwozhijian，jianyurefuzhucijilu（hamr）deng hdd fangmiandexinjinzhan，ssd zaierjicunchulingyujiangnanyiyu hdd jingzheng。”

womenkeyirenwei，shichangduicunchurongliangdexuqiuzengzhangsudujianghuichaoguossddeshengchanchanneng，erssddeshengchanchannengjianghuisuizhizengjiayizhuiganxuqiu。

womenjuede，suizhe 122tb de pcie gen 5 ssdjinrushichang，qiezhenshidezongtiyongyouchengben（tco）shujudeyichengxian，youguan “ssdjiangchongjijinxianhdd” dezhenglunzaizhengge 2025 niandoujiangchixuxiaqu。zhichissddeguandianjianghuiyufayouli，cushifenxishimengaibiantamendekanfa。

ruguoshichangqingxuzhuanxiangqinglaissd，neimezheiduisanjiahddzhizaoshang —— xijie（seagate）、dongzhi（toshiba）hexibushuju（western digital）—— eryanyingxiangjiangshijudade。hddjieshijiuhuirutongjiaojuanxiangjimianduishumaxiangji，jineryoumianduizhinengshoujishexiangtoushineibanchujing。kedazaizheizhongzhuanbianguochengzhongbiaoxianruheni？

suizhessdzhujiancanshitamendejinxianhddxiaoliang，zheisanjiaqiyejiangmianlinyiduanmanzhangdeshuaituiqi。jieshiwomenhuoxuhuikandaodongzhituichuhddyewu，xijieshougouyijiassdkongzhiqizhizaoshanglaigongguqi nytro ssdchanpinxian，erxibushujushenzhikenengtongguotongyangdefangshizhongxinshezussdyewu。

编译自blocksandfiles