Kuchuluka kwa hard drive kukupitilirabe, koma kukula kwachulukirachulukira m'zaka zaposachedwa. Chifukwa chake, kuti mutulutse 4 TB drive yoyamba pambuyo pa 2 TB HDDs idagulitsidwa, makampaniwo adakhala zaka ziwiri zokha, zidatenga zaka zitatu kuti zifikire chizindikiro cha 8 TB, ndipo zidatenga zaka zina zitatu kuwirikiza kawiri kuchuluka kwa 3,5 -inch hard drive idapambana kamodzi kokha zaka zisanu.
Kupambana kwaposachedwa kudatheka chifukwa cha mndandanda wonse wa mayankho anzeru. Masiku ano, ngakhale osamala monga Toshiba, omwe mpaka posachedwapa anakana helium, amakakamizika kupanga ma hard drive mumilandu yosindikizidwa, ndipo chiwerengero cha mbale pazitsulo chawonjezeka kufika pa zidutswa zisanu ndi zinayi - ngakhale kamodzi, ndipo kwa nthawi yaitali, mbale zisanu zinalipo. ankaona kuti ndi malire oyenera. Mu niches zenizeni, zomwe zimatchedwa ukadaulo zimagwiritsidwa ntchito. kujambula matailosi (SMR, Shingled Magnetic Recording), momwe gawoli limatsata m'mbale zimadutsana pang'ono. Ndipo potsiriza, kuti musinthe malire a hard drive mphamvu kuchokera ku 14 mpaka 16 TB popanda kugwiritsa ntchito SMR, opanga anayenera kugwiritsa ntchito imodzi mwa matekinoloje odalirika, mndandanda womwe ukuchepa pang'onopang'ono womwe timapanganso chaka chilichonse. , - kuwerenga nyimbo ndi mitu ingapo nthawi imodzi (TDMR, Two-Dimensional Magnetic Recording). Kupita patsogolo kwina posakhalitsa kudzafuna kusintha kwakukulu pazofunikira za HDD - monga kutentha mbale pogwiritsa ntchito laser kapena ma microwaves (HAMR/MAMR, Kutentha kwa Magnetic / Microwave-Assisted Magnetic Recording) panthawi yomwe imadutsa mutu wojambulira.
Komabe, n'zosavuta kuona kuti njira zonse anafotokoza umalimbana makamaka kuonjezera kulemba kachulukidwe ndi kuonjezera voliyumu pa opotera limodzi, ngakhale ambiri a iwo ndi opindulitsa mbali zotsatira mu mawonekedwe a kuchuluka liwiro la liniya deta kuwerenga ndi kulemba. Malinga ndi parameter iyi, ma HDD amakono adutsa malire a 250 MB/s ndipo akufanana kale ndi ma drive olimba amtundu woyamba. Koma liwiro lofikira magawo osasinthika a maginito disks silipita patsogolo, ndipo potengera kuchuluka kwa ntchito, kuchuluka kwa magwiridwe antchito pamphindikati kumakhala kochepa. Panthawi imodzimodziyo, zofunikira zowonjezera zololera zolakwa zimawuka, chifukwa deta yochuluka imasungidwa pa spindle imodzi, ndikofunikira kwambiri kuti zisataye ndipo zimatenga nthawi yayitali kuti zibwezeretse.
Koma omwe amapanga zida zosungira maginito adapezanso yankho ku vutoli. Tidatenga ma hard drive atatu kuyambira 14TB mpaka 16TB kuti tiwone momwe ukadaulo wazaka 64 ukusinthira ku 2019, ndipo tidawona zochitika zingapo. Zitsanzo zotsogola zamagalimoto amakono a 3,5-inch, opangidwira ma seva opangira rack ndi makina osungira, ali ndi zomwe zimafanana ndi ma drive-state-olimba - kuchokera ku mfundo za gawo loyang'anira mpaka kuphatikizika kwachindunji kwa tchipisi tomwe timakumbukira. Ndipo zitsanzo za ogula, nawonso, zakhala zikugwirizana kwambiri ndi machitidwe awo a seva, ndipo ngakhale kufotokozera "desktop HDD" sikunenanso zambiri za liwiro ndi kudalirika kwa chipangizocho. Koma cholinga cha ndemangayi sichimangotanthauza mawu wamba. Tikufuna kudziwa momwe machitidwe atsopano pamapangidwe a hard drive amamasulira kukhala manambala a hard performance.
Makhalidwe aukadaulo a omwe atenga nawo mayeso
Tisanayambe kusanthula zotsatira zoyesa, ndikofunikira kuti tiphunzire mosamala za zida zomwe tikhala tikuchita. Nthawi ino palibe ambiri mwa iwo monga momwe zimakhalira m'mayesero athu amagulu, koma takwaniritsa zikhalidwe zazikulu, popanda zomwe kuyerekezera kwa hard drive sikungathe kunena kuti ndizokwanira. Ndemangayi idaphatikizapo zopangidwa kuchokera kwa opanga onse atatu - Seagate, Toshiba ndi Western Digital, ndipo ali m'magulu osiyanasiyana: ogula ndi seva. Makhalidwe akuluakulu omwe amawagwirizanitsa ndi voliyumu ya 14 kapena 16 TB, chikwama chosindikizidwa chodzazidwa ndi helium, ndi liwiro la spindle la 7200 rpm. Ndipo poyerekeza ndi zolemera zolemera, kuyesaku kumaphatikizapo zida zitatu zazing'ono zomwe timazidziwa kale (10 ndi 12 TB), zopangidwira kuti zigwiritsidwe ntchito mu maseva, kunyumba kapena ofesi ya NAS.
| Wopanga | Seagate | Toshiba | Western Digital | |||
|---|---|---|---|---|---|---|
| Mndandanda | BarraCuda Pro | Kutulutsa X10 | IronWolf | MG08 | S300 | Ultrastar DC HC530 |
| Nambala yachitsanzo | CHITSITSI | Chithunzi cha ST10000NM0016 | Zogwirizana | Sakanizani: MG08ACA16TE | Chithunzi cha HDWT31AUZSVA | WUH721414ALE6L4 |
| fomu Factor | Xnumx inchi | Xnumx inchi | Xnumx inchi | Xnumx inchi | Xnumx inchi | Xnumx inchi |
| mawonekedwe | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s |
| Mphamvu, GB | 14 000 | 10 000 | 12 000 | 16 000 | 10 000 | 14 000 |
| Kukhazikika | ||||||
| Kuthamanga kwa spindle, rpm | 7 200 | 7 200 | 7 200 | 7 200 | 7 200 | 7 200 |
| Zothandiza zojambulira deta, GB/platter | 1 750 | 1 429 | 1 500 | 1 778 | 1 429 | 1 750 |
| Chiwerengero cha mbale/mitu | 8/16 | 7/14 | 8/16 | 9/18 | 7/14 | 8/16 |
| Kukula kwa gawo, mabayiti | 4096 (512 byte kutsanzira) | 4096 (512 byte kutsanzira) | 4096 (512 byte kutsanzira) | 4096 (512 byte kutsanzira) | 4096 (512 byte kutsanzira) | 4096 (512 byte kutsanzira) |
| Voliyumu ya buffer, MB | 256 | 256 | 256 | 512 | 256 | 512 |
| Kukonzekera | ||||||
| Max. liwiro lowerengera lokhazikika, MB/s | 250 | 249 | 210 | ND | 248 | 267 |
| Max. liwiro lokhazikika lolemba, MB/s | 250 | 249 | 210 | ND | 248 | 267 |
| Avereji ya nthawi yosaka: werengani/lemba, ms | ND | ND | ND | ND | ND | 7,5/ND |
| kulekerera zolakwika | ||||||
| Katundu wamapangidwe, TB/g | 300 | ND | 180 | 550 | 180 | 550 |
| Zolakwika zowerengera, kuchuluka kwa zomwe zimachitika pa voliyumu ya data (bits) | 1/10^15 | 1/10^15 | 1/10^15 | 10/10^16 | 10/10^14 | 1/10^15 |
| MTBF (nthawi yeniyeni pakati pa zolephera), h | ND | 2 500 000 | 1 000 000 | 2 500 000 | 1 000 000 | 2 500 000 |
| AFR (mwayi wolephera pachaka),% | ND | 0,35 | ND | ND | ND | 0,35 |
| Chiwerengero cha maulendo oimika magalimoto | 300 000 | 600 000 | 600 000 | 600 000 | 600 000 | 600 000 |
| Makhalidwe akuthupi | ||||||
| Kugwiritsa ntchito mphamvu: osagwira ntchito / kuwerenga-kulemba, W | 4,9/6,9 | 4,5/8,4 | 5,0/7,8 | ND | 7,15/9,48 | 5,5/6,0 |
| Mulingo waphokoso: kusachita/kusaka, B | ND | ND | 1,8/2,8 | 2,0/ND | 3,4/ND | 2,0/3,6 |
| Kutentha kwakukulu, Β°C: disk on/disk off | 60/70 | 60/ND | 70/70 | 55/70 | 70/70 | 60/70 |
| Kukana kugwedezeka: disk on/disk off | ND | 40 g (2 ms) / 250 g (2 ms) | 70 g (2 ms) / 250 g (2 ms) | 70 g (2 ms) / 250 g (2 ms) | 70 g (2 ms) / 250 g (2 ms) | 70 g (2 ms) / 300 g (2 ms) |
| Miyeso yonse: L Γ H Γ D, mm | 147 Γ 101,9 Γ 26,1 | 147 Γ 101,9 Γ 26,1 | 147 Γ 101,9 Γ 26,1 | 147 Γ 101,9 Γ 26,1 | 147 Γ 101,9 Γ 26,1 | 147 Γ 101,6 Γ 26,1 |
| kulemera, g | 690 | 650 | 690 | 720 | 770 | 690 |
| Nthawi ya chitsimikizo, zaka | 5 | 5 | 3 | 5 | 3 | 5 |
| Mtengo wogulitsa (USA, kupatula msonkho), $ | Kuchokera ku 549 (newegg.com) | Kuchokera ku 289 (newegg.com) | Kuchokera ku 351 (newegg.com) | ND | Kuchokera ku 301 (newegg.com) | Kuchokera ku 439 (amazon.com) |
| Mtengo wogulitsa (Russia), rub. | Kuchokera ku 34 (market.yandex.ru) | Kuchokera ku 17 (market.yandex.ru) | Kuchokera ku 26 (market.yandex.ru) | ND | Kuchokera ku 19 (market.yandex.ru) | Kuchokera ku 27 (market.yandex.ru) |
Mtundu woyamba m'gulu lathu laling'ono la ma hard drive amtundu wocheperako - BarraCuda Pro 14 TB - ndigalimoto yama PC apakompyuta ndi DAS, koma osati yosavuta, koma "akatswiri". Kumbali imodzi, izi zikutanthauza kuti BarraCuda Pro ili ndi malire amtundu wa hard drive. Mwachitsanzo, sikunapangidwe kuti aphatikizidwe mumagulu a RAID, chifukwa chifukwa cha izi ndikofunikira kukhala ndi TLER (Time-Limited Error Recovery) - mawonekedwe a firmware omwe amalepheretsa HDD kuwuluka kuchokera pamndandanda chifukwa choyesa kwanthawi yayitali ndi microcontroller. kuwerenga gawo lamavuto. Kuphatikiza apo, BarraCuda Pro chassis sichiyenera kugwira ntchito mushelufu kapena NAS yokhala ndi madengu angapo, chifukwa sichilipira kugwedezeka kozungulira.
Koma kumbali ina, mosiyana ndi ma hard drive ena ambiri apakompyuta, ma HDD amtunduwu ali ndi zowonjezera zowonjezera pachaka - mpaka 300 TB yolembanso, ali okonzeka kugwira ntchito 24/7 ndipo amatsagana ndi chitsimikizo chazaka zisanu. Mwinanso simuyenera kudandaula za magwiridwe antchito (makamaka pantchito zokhala ndi data yolumikizana kwambiri): chifukwa cha mbale zisanu ndi zitatu za 1,75 TB, chipangizochi chimakwaniritsa kutulutsa kokhazikika kwa 250 MB/s. Kuphatikiza apo, wopanga akulonjeza kuti liwiro lofikira mwachisawawa ku BarraCuda Pro liyenera kukhala lalitali poyerekeza ndi ma drive wamba apakompyuta apakompyuta, komanso kugwiritsa ntchito mphamvu, m'malo mwake, ndikotsika kuposa mitundu yambiri ya 3,5-inch. Komabe, tiwonabe mawu onse a Seagate.
Kuti tigonjetse kuchulukana kotereku kwa data mkati mwa chimango chojambulira chokhazikika popanda kugwiritsa ntchito ukadaulo wa niche SMR (Shingled Magnetic Recording), Seagate idayenera kugwiritsa ntchito imodzi mwa njira zodalirika zomwe timalemba chaka ndi chaka m'mabuku athu. , - chotchedwa kujambula kwa mbali ziwiri (Kujambula kwa Magnetic Awiri-Dimensional). Koma mosiyana ndi dzina lake, TDMR sichimalumikizidwa mwanjira iliyonse ndi njira yojambulira deta motere ndipo idapangidwa kuti iwonjezere kuchuluka kwa ma sign-to-phokoso m'malo okhala ndi kachulukidwe kakang'ono ka mayendedwe pa mbale yamaginito chifukwa chowerenga nthawi yomweyo nyimbo. ndi mitu iwiri yowerengedwa: yotsirizirayi imasiyanitsidwa m'njira yoti mundawu ugwire mayendedwe oyandikana nawo, ndipo zimakhala zosavuta kubwezera kusokoneza. M'tsogolomu, ma hard drive omwe ali ndi TDMR adzawonjezera mitu yambiri, ndipo pamodzi ndi kudalirika kwa kuwerenga kwa deta, liwiro lake likhoza kuwonjezeka, koma iyi ikadali nkhani yamtsogolo.
Magalimoto a BarraCuda Pro amasiyana m'njira zambiri kuchokera ku zida zofananira zamagulu ang'onoang'ono opanda mawu oyambira a Pro - kuyambira ndikuti opanga onse a HDD ali ndi mitundu yokhazikika yapakompyuta yokhazikika pa 6-8 TB. Kuyendetsa kwa BarraCuda Pro kumatha kufotokozedwa ngati mbadwa ya nthambi ya seva ya Seagate, yomwe ilibe ntchito zokhudzana ndi kugwira ntchito motsatizana. Koma chifukwa chake, mtengo wa chipangizocho wakwera mpaka kufika pamiyeso yamakampani, kapena kupitilira apo: ku Russia, mtundu wa 14-terabyte sungapezeke wotsika mtengo kuposa ma ruble 34, ndi malo ogulitsa ku United States - $ 348. Ngakhale mitundu yapafupi ya Seagate ya voliyumu yomweyi imawononga ndalama zochepa - kuchokera ku $ 549 kapena 375 rubles.
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Mutu wotsatira woyeserera, 14 TB Ultrastar DC HC530, ndi galimoto yapafupi yomwe inkayimira zabwino zomwe mainjiniya a Western Digital angachite mpaka mtundu watsopano wa 16 TB utafika. Ndipo muzochita za 3DNews, idakhala mtundu woyamba wa Ultrastar hard drive wopanda zilembo zanthawi zonse HGST m'dzina: kampaniyo idasamutsa mitundu yonse ya seva pansi pa mtundu wake pambuyo poti katundu wa HGST atathetsedwa mu bungwe logwirizana. M'mawonekedwe ake ofunikira, chipangizochi ndi chofanana ndi BarraCuda Pro ya voliyumu yomweyi: mkati mwa chosindikizira cha Ultrastar DC HC530 palinso mbale zisanu ndi zitatu zamaginito zomwe zimakhala ndi mphamvu yothandiza ya 1750 GB, ndipo teknoloji ya TDMR imapereka kuwerenga kwa deta kuchokera kumadera ambiri. mayendedwe. Koma potengera magawo ena komanso ntchito zina zowonjezera zomwe zimafanana ndi ma HDD amakampani, Ultrastar DC HC530 siyingayikidwe pamlingo womwewo ngati mawonekedwe apakompyuta, ngakhale BarraCuda Pro siiyimira gulu lake.
Chifukwa chake, kachulukidwe kofunikira pama mbale a BarraCuda Pro ndi Ultrastar DC HC530 ndiwofanana, monga momwe zimakhalira liwiro la spindle, koma WD imatsimikizira kuwerengera kopitilira muyeso kokhazikika kwa data - mpaka 267 MB / s (siyi. momveka bwino komwe kusiyanaku kunachokera , koma mayesero awonetsa ngati alipodi). Kuchedwa panthawi yopezeka mwachisawawa kumathandizidwa kuchepetsedwa ndi chowongolera chatsopano, chachitatu cha magawo awiri ndi chotchinga chachikulu cha 512 MB, komanso chofunikira kwambiri, Media Cache - malo osungirako kuti alembe mwachangu midadada yomwe imabalalika pamwamba pa mbale. Chotsatirachi chimapangitsa ma disks amakono apafupi kukhala ofanana ndi ma drive olimba, omwe amakhalanso ndi chiΕ΅erengero chosiyana pakati pa zigawo zakuthupi ndi midadada yomveka. Ndipo kuyambira ndi mitundu ya 10-terabyte Ultrastar DC HC330, WD imagwiritsanso ntchito kukumbukira pang'ono kung'anima posungira zolemba. Zindikirani kuti, pamodzi ndi (mwina) magwiridwe antchito apamwamba kwambiri ndi miyezo ya maginito oyendetsa maginito, chinthu cha WD chimasiyanitsidwa ndi kugwiritsa ntchito mphamvu pang'onopang'ono - kwenikweni, ndi chipangizo chomwe chimagwiritsa ntchito mphamvu zochepa kwambiri pakati pa omwe akuchita nawo mayeso, kutengera magawo ake a pasipoti. .
Magalimoto a kalasiyi amamangidwa ndikuyembekeza kuti azigwira ntchito mosalekeza muzitsulo za seva: kuyika kwazitsulo kumbali ziwiri, kubwezeredwa kozungulira - izi ndi zina zapangidwe za Ultrastar DC HC530 zinapangitsa kuti zikhale zotheka kuwonjezera kuchuluka kwa disk mpaka 550. TB/chaka, ndi MTBF ndi mmene kwa pafupifupi -zitsanzo maola 2,5 miliyoni. Ngati kulephera kosayembekezereka pakukonzanso firmware, chip chokhazikika chimagulitsidwa pa bolodi yowongolera. Diskiyo imabwera muzosinthidwa ndi mwayi wofikira ku 4 KB kapena kutsanzira magawo a 512-byte, ndi mawonekedwe a SATA kapena SAS. Pamapeto pake, njira yosinthira deta yomaliza mpaka kumapeto imapezekanso.
Mitengo yogulitsira ya WD Ultrastar DC HC530 mu kasinthidwe ndi doko la SATA ndikutsanzira cholowa cha 512-byte markup imagwirizana ndi mawonekedwe apamwamba ndi matekinoloje a chipangizochi: kuchokera ku RUB 27. m'masitolo aku Russia pa intaneti ndi $495 pa Amazon.
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Sizinali zophweka kusonkhanitsa ma hard drive a 14 TB kuti ayesere kuyerekeza, ndipo sitinathe kupeza chipangizo choyenera kuchokera kwa wopanga wachitatu - Toshiba. Koma m'malo mwake tapeza chitsanzo cha m'badwo wotsatira, 16 TB. Tsopano makampani onse atatu a hard drive amapereka zoyendetsa zofanana, koma mndandanda wa Toshiba wa MG08 unali woyamba pakati pawo. Mbiri ya kampani yaku Japan imadalira mbale zokhala ndi kachulukidwe kakang'ono ngati 14TB BarraCuda Pro ndi Ultrastar hard drive, koma aka ndi nthawi yoyamba kuti Toshiba azitha kunyamula zikondamoyo zisanu ndi zinayi mumilandu yokhazikika ya 3,5 inchi. Osati popanda ukadaulo wa TDMR, womwe wakhala chinthu chofunikira chogonjetsera malire atsopano. Kutulutsa kwa mzere wa Toshiba MG08 kuyenera kukhala pamlingo wa WD Ultrastar DC HC530, koma, zodabwitsa, wopanga sawulula zambiri za momwe chipangizochi chikugwirira ntchito.
Koma zimadziwika kuti Toshiba nayenso wachitapo kanthu kuti awonjezere kudalirika komanso nthawi yomweyo kuchepetsa latency ya kulemba ntchito: flash memory chip pa bolodi la MG08 ngati magetsi akutha amakulolani kusunga deta yotumizidwa ndi woyang'anira alendo. polemba, koma kuweruza ndi zotsatira zoyesa, imagwiranso ntchito ngati gawo lachiwiri lokumbukira posungira pambuyo pa buffer ya DRAM. Komabe, ukadaulo uwu (Persistent Write Cache) umangowoneka pama disks omwe ali ndi mawonekedwe a 512-byte, omwe ndi gwero lina langozi pakulephera kwamagetsi (komanso kumaba magwiridwe antchito) chifukwa chowerengera. -modify-write operation nthawi iliyonse zolemba za midadada zomveka zomwe sizikugwirizana ndi malire amagulu akuthupi. Koma mndandanda wa MG08 umaphatikizaponso zitsanzo zokhala ndi mwayi wopita kumagulu a 4-kilobyte. Kaya izi zikutanthauza kuti zotsirizirazo zilibe memory memory, kapena kuti zosunga zobwezeretsera zangochotsedwa kumene, sitikudziwa. Koma mosasamala kanthu za PWC, Toshiba MG08, ndi ma drive ena ochokera ku kampaniyi, amagwiritsa ntchito ma aligorivimu a Dynamic Cache, omwe, malinga ndi wopanga, amagawira bwino malo osungira pakati pa kuwerenga ndi kulemba. Tilibenso zambiri za iwo.
Zomwe zimawonjezera kulolerana kolakwika pamapangidwe a Toshiba MG08 ndi ma spindle okwera mbali zonse ndi masensa ozungulira. Ma drive awa adapangidwa kuti alembe 550 TB ya data pachaka, amakhala ndi nthawi yayitali pakati pa kulephera kwa maola 2,5 miliyoni, muyezo wa zida zamabizinesi, ndi nthawi yazaka zisanu. Makasinthidwe angapo amagalimoto akupezeka kuti ayitanitsa, ndi mawonekedwe a SATA kapena SAS komanso kubisa komaliza mpaka kumapeto. Komabe, sitingakupatseni kalozera wamitengo: Toshiba's 16-terabyte drive idabweretsedwanso mu Januware, koma ikadali chilombo chosowa kwambiri pakugulitsa malonda.
Toshiba MG08 16 TB
Tsopano popeza takumana ndi otenga nawo mayeso akulu akulu atatu, tiyeni tiwone ma hard drive ang'onoang'ono omwe tiyenera kufananiza nawo ma 14-16 terabyte atsopano. Chimodzi mwa izo, Exos X10 yokhala ndi mphamvu ya 10 TB, ndi galimoto yoyandikira yomwe ili ndi maginito asanu ndi awiri m'nyumba yosindikizidwa. Ndipo ngakhale, popeza mphamvu yogwiritsira ntchito mbale yakula kuchokera ku 1429 kufika ku 1750 GB kapena kupitirira, kuthamanga kwa ma hard drive kuyenera kuwonjezereka, pazigawo izi Exos X10 si yotsika kuposa 14 TB BarraCuda Pro malinga ndi tsatanetsatane wa ma drive onsewo. Chinachake sichimawonjezera pama hard drive a Seagate, koma tili ndi mwayi wodziwa zonse zomwe tikuchita.
Pofuna kuonjezera kuthamanga kwa ntchito zopezeka mwachisawawa, mndandanda wa Exos uli ndi AWC (Advanced Write Caching) yolemba makina osungira, omwe amachepetsa nthawi yoyankha. Pansi pa AWC, zolembera zimayikidwa mu buffer ya DRAM monga momwe zilili mu hard drive ina iliyonse, koma buffer imasunga kopi ya data ikatsitsidwa m'mbale, ndipo zomwe zili mu buffer yowoneka bwino zitha kuwerengedwa nthawi yomweyo ndi wolandila. wowongolera. MU Mawonekedwe a 2,5-inch AWC mawonekedwe amaphatikizapo gawo lotsatira lachangu kwambiri - malo osungidwa pamwamba pa mbale, pomwe deta yochokera ku DRAM imalembedwa motsatizana (Media Cache), komanso kukumbukira pang'ono kosasunthika kuti mupulumutse deta. kuchokera ku buffer pakagwa mphamvu yamagetsi. Koma Exos X10 ilibe kukumbukira kwa flash, ndipo mwina Media Cache pamodzi nayo.
Poyerekeza ndi ma drive hard ogula pamakompyuta apakompyuta ndi NAS, ma drive a Exos amasiyanitsidwa ndi MTBF yayikulu (maola 2,5 miliyoni) ndi kapangidwe kake (550 TB/chaka), kuthekera kogwira ntchito mu rack ya seva popanda zoletsa kuchuluka kwa madengu, ndi moyo wautumiki wazaka zisanu. Galimoto yolimba yokhala ndi nambala yachitsanzo ST10000NM0016, yomwe tinalandira kuti tiyesedwe, imakhalanso ya kusintha kwa Hyperscale, yomwe imakhala ndi mphamvu yochepa poyerekeza ndi mamembala ena a m'banja la Exos, koma imapezeka ndi mawonekedwe a SATA ndi kutsanzira magawo a 512-byte. . Pakusintha ndi cholumikizira cha SAS, mitundu ya Exos ilinso ndi zosankha zokhala ndi mwayi wofikira magawo 4 KB, komanso kubisa kwa disk-to-end.
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Seagate IronWolf hard drive idawonetsedwa posachedwa oimira atsopano amtunduwu pamodzi ndi Seagate SSD yosungirako maukonde. Mtundu wa 12-terabyte IronWolf ukuwoneka kuti uli ndi mbale zokhala ndi kachulukidwe kawonekedwe ka Exos X10, pokhapo pali imodzi mwa izo. Komabe, Seagate ikuyerekeza momwe ubongo wake umagwirira ntchito pakuwerengera ndi kulemba motsatizana motsika kwambiri - 210 MB/s yokha. Ndipo palibe matekinoloje apamwamba omwe cholinga chake ndi kubweza kuyankha kwakukulu komwe kumachitika mumayendedwe amagetsi.
Koma ma hard drive onse a IronWolf, kuyambira ndi mphamvu ya 4 TB, adabwereka zida zingapo zamtundu wa Exos zomwe zimathandizira kukulitsa kulolerana kwa zolakwika. Maginito a platter block ya hard drive iliyonse amakhala bwino mu ndege ziwiri, ndipo masensa ozungulira amatsimikizira kugwira ntchito mokhazikika m'makina osungiramo rack-mount kapena NAS yoyima yokha yokhala ndi ma disk opitilira asanu ndi atatu. IronWolf idapangidwa kuti ikhale yogwira ntchito pang'onopang'ono yokhala ndi mapangidwe a 180 TB/chaka ndipo ili ndi MTBF ya maola 1 miliyoni. Zotsatira zake, nthawi ya chitsimikizo cha IronWolf siitalikirana ndi mitundu yayikulu kwambiri mumndandanda wa Seagate - zaka zitatu.
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Pansi pa mtundu wa S300, kampani yaku Japan Toshiba yatulutsa ma drive angapo owonera makanema - ma hard drive awa amaperekedwanso kwawo. pamasamba a 3DNews. Pokulitsa ATA Streaming Command Set data transfer protocol, mitundu yakale ya Toshiba S300 imatsimikizira kujambula mavidiyo munthawi imodzi kuchokera ku makamera owunika 64, koma pachimake ndi ma drive a NAS ndi DAS omwe amatha kugwira ntchito 24/7 ndi MTBF yabwino: monga IronWolf, ndi maola 1 miliyoni, ndipo nthawi ya chitsimikizo ndi zaka zitatu zomwezo. Chifukwa cha mapangidwe ake a S300 chassis - kuyika zopota zapawiri komanso kubweza kozungulira kozungulira - ndizotheka kuyika zida zopitilira zisanu ndi zitatu mushelefu imodzi kapena NAS yoyima yaulere.
Mtundu wa S300, wosankhidwa kuti ufananize ndi zinthu zatsopano zokhala ndi mphamvu ya 14-16 TB, umamangidwa pamakina amagetsi a MD06ACA-V ma drive a seva ndipo uli ndi mbale zisanu ndi ziwiri za maginito, ndipo mawonekedwe a chipangizocho akuwonetsa liwiro lowerenga / kulemba mwachisawawa la 248. MB/s, yofananira ndi ma HDD amakono akuluakulu. Koma mwa njira zomwe zimagwiritsidwa ntchito mu ma hard drive a seva ya Toshiba kuti muchepetse latency, S300 ili ndi ntchito ya Dynamic Cache yokha.
Mosiyana ndi onse omwe atenga nawo mayeso, S300, ngakhale ili ndi mbale zisanu ndi ziwiri zowundana, imachita popanda helium ndipo imayikidwa mubwalo lokhala ndi mpweya wabwino. Zikuoneka kuti ndichifukwa chake chitsanzo cha 10 terabyte chili ndi mtengo wapamwamba kwambiri wogwiritsira ntchito mphamvu mu tebulo lachidule la zomwe ochita nawo mayeso, ndipo chizindikiro ichi, ngakhale pachokha ndichofunikira kwa olamulira apakati pa data, chimatsimikizira mwachindunji kutentha kwa ma data. HDD. Tiwona momwe S300 imagwiritsidwira ntchito tokha, koma pakadali pano tiwona mfundoyi.
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Source: 3dnews.ru