Matla a hard drive a ntse a eketseha, empa sekhahla sa kholo se ntse se theoha butle-butle lilemong tsa morao tjena. Kahoo, e le ho lokolla koloi ea pele ea 4 TB ka mor'a hore 2 TB HDDs e rekisoe, indasteri e qetile lilemo tse peli feela, ho ile ha nka lilemo tse tharo ho fihla letšoao la 8 TB, 'me ho ile ha nka lilemo tse ling tse tharo ho habeli matla a 3,5. -inch hard drive e atlehile hanngoe feela ka lilemo tse hlano.
Katleho ea morao-rao e fihletsoe ka lebaka la lethathamo le felletseng la litharollo tse ncha. Kajeno, esita le li-conservatives tse kang Toshiba, tseo ho fihlela morao tjena li hanneng helium, li qobelloa ho hlahisa li-drive tse thata ka har'a linyeoe tse tiisitsoeng, 'me palo ea lipoleiti tse holim'a li-spindle li eketsehile ho fihlela likotoana tse robong - le hoja hang,' me ka nako e telele, lipoleiti tse hlano li ne li le teng. ho nkoa e le moeli o utloahalang. Libakeng tse khethehileng, ho sebelisoa seo ho thoeng ke theknoloji. ho rekota lithaele (SMR, Shingled Magnetic Recording), moo karolo e latelang platter e kopanang hanyane. Qetellong, bakeng sa ho fetola moeli oa matla a hard drive ho tloha ho 14 ho isa ho 16 TB ntle le ts'ebeliso ea SMR, bahlahisi ba ile ba tlameha ho kenya ts'ebetsong e 'ngoe ea mahlale a ts'episang, lenane le ntseng le fokotseha butle-butle leo re le hlahisang selemo le selemo. , - ho bala pina ka lihlooho tse 'maloa ka nako e le' ngoe (TDMR, Two-Dimensional Magnetic Recording). Khatelo-pele e eketsehileng haufinyane kapa hamorao e tla hloka liphetoho tse kholoanyane metheong ea ts'ebetso ea HDD - joalo ka ho futhumatsa platter ka laser kapa microwaves (HAMR/MAMR, Heat/ Microwave-Assisted Magnetic Recording) nakong eo e fetisang hlooho ea ho rekota.
Leha ho le joalo, ho bonolo ho bona hore mekhoa eohle e hlalositsoeng e reretsoe haholo-holo ho eketsa boima ba ho ngola le ho eketsa molumo holim'a spindle e le 'ngoe, le hoja ba bangata ba bona ba e-na le phello e ntle ea lehlakoreng ka mokhoa oa lebelo le eketsehileng la ho bala le ho ngola lintlha tse lekanang. Ho latela paramethara ena, li-HDD tsa sejoale-joale li tlotse moeli oa 250 MB/s mme li se li ntse li bapisoa le li-drive tsa pele tsa bareki. Empa lebelo la ho fihlella likarolo tse sa reroang tsa li-magnetic disks ha li tsoele pele, 'me mabapi le bophahamo ba modumo, palo ea ts'ebetso motsotsoana e fokotseha feela. Ka nako e ts'oanang, litlhoko tse eketsehileng tsa ho mamellana ha liphoso li hlaha, hobane data e ngata e bolokiloe holim'a spindle e le 'ngoe, ho bohlokoa le ho feta hore e se ke ea lahleheloa ke eona' me e nka nako e telele ho e tsosolosa.
Empa baetsi ba lisebelisoa tsa polokelo ea makenete le bona ba fumane karabo phephetsong ena. Re nkile li-hard drive tse tharo ho tloha ho 14TB ho isa 16TB ho bona hore na theknoloji ea lilemo tse 64 e ikamahanya le 2019 joang, mme re hlokometse mekhoa e seng mekae. Mehlala ea 'mampoli ea li-hard drive tsa sejoale-joale tse 3,5-inch, tse hlahisoang bakeng sa li-server tsa rack le lits'ebetso tsa polokelo, li na le ho hong ho ts'oanang le li-drive tse tiileng - ho tloha metheong ea lefapha le sebetsanang le ho hokahana ka kotloloho ha li-flash chips ho polokelo ea memori ea lehae. 'Me mehlala ea bareki, ka lehlakoreng le leng, e se e le haufi le litšoaneleho tsa bona ho li-server tsa bona, esita le tlhaloso ea "desktop HDD" ha e sa bua haholo ka lebelo le ho tšepahala ha sesebelisoa. Empa morero oa tlhahlobo ena ha o felle feela mantsoeng a akaretsang. Re ikemiselitse ho fumana hore na mekhoa e mecha ea moralo oa hard drive e fetolela joang ho linomoro tsa ts'ebetso e thata.
Litšobotsi tsa tekheniki tsa barupeluoa tekong
Pele re qala ho sekaseka sephetho sa liteko, ho bohlokoa ho ithuta ka hloko litšobotsi tsa lisebelisoa tseo re tla be re sebetsana le tsona. Lekhetlong lena ha ho na tse ngata tsa tsona tse atisang ho etsahala litekong tsa sehlopha sa rona, empa re phethile maemo a ka sehloohong, ntle le hore papiso ea li-hard drive e ke ke ea bolela hore e phethehile. Tlhahlobo e kenyelelitse lihlahisoa tse tsoang ho baetsi bohle ba bararo - Seagate, Toshiba le Western Digital, 'me ke tsa lihlopha tse fapaneng: bareki le seva. Litšobotsi tse ka sehloohong tse li kopanyang ke molumo oa 14 kapa 16 TB, mokotla o tiisitsoeng o tletseng helium, le lebelo la spindle la 7200 rpm. 'Me ha ho bapisoa le boima bo boima, tlhahlobo e kenyelletsa lisebelisoa tse tharo tse nyane tse seng li ntse li tsejoa ho rona (10 le 12 TB), tse etselitsoeng ho sebelisoa ho li-server, NAS ea lehae kapa ofisi.
| Moetsi | Seagate | Toshiba | Western Digital | |||
|---|---|---|---|---|---|---|
| Sehlooho | BarraCuda Pro | Exoda X10 | IronWolf | MG08 | S300 | Ultrastar DC HC530 |
| Nomoro ea mohlala | ST14000DM001 | ST10000NM0016 | Setšoantšo sa ST12000VN0008 | MG08ACA16TE | Tlhaloso: HDWT31AUZSVA | WUH721414ALE6L4 |
| Ntho ea motheo | Xnumx inch | Xnumx inch | Xnumx inch | Xnumx inch | Xnumx inch | Xnumx inch |
| segokanyimmediamentsi sa sebolokigolo | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s |
| Bokhoni, GB | 14 000 | 10 000 | 12 000 | 16 000 | 10 000 | 14 000 |
| Moralo | ||||||
| Lebelo la ho potoloha ha spinndle, rpm | 7 200 | 7 200 | 7 200 | 7 200 | 7 200 | 7 200 |
| Tšebeliso e sebetsang ea ho rekota data, GB/platter | 1 750 | 1 429 | 1 500 | 1 778 | 1 429 | 1 750 |
| Palo ea lipoleiti/lihlooho | 8/16 | 7/14 | 8/16 | 9/18 | 7/14 | 8/16 |
| Boholo ba lekala, li-byte | 4096 (512 byte emulation) | 4096 (512 byte emulation) | 4096 (512 byte emulation) | 4096 (512 byte emulation) | 4096 (512 byte emulation) | 4096 (512 byte emulation) |
| Buffer size, MB | 256 | 256 | 256 | 512 | 256 | 512 |
| Tlhahiso | ||||||
| Max. lebelo le tsitsitseng la ho bala, MB/s | 250 | 249 | 210 | ND | 248 | 267 |
| Max. lebelo le tsitsitseng la ho ngola, MB/s | 250 | 249 | 210 | ND | 248 | 267 |
| Karolelano ea nako ea ho batla: bala/ngola, ms | ND | ND | ND | ND | ND | 7,5/ND |
| mamello ea liphoso | ||||||
| Mojaro oa moralo, TB/g | 300 | ND | 180 | 550 | 180 | 550 |
| Liphoso tse mpe tsa ho bala, palo ea liketsahalo ka bophahamo ba data (bits) | 1/10^15 | 1/10^15 | 1/10^15 | 10/10^16 | 10/10^14 | 1/10^15 |
| MTBF (nako e bolelang pakeng tsa ho hlōleha), h | ND | 2 500 000 | 1 000 000 | 2 500 000 | 1 000 000 | 2 500 000 |
| AFR (monyetla oa ho hloleha ka selemo),% | ND | 0,35 | ND | ND | ND | 0,35 |
| Palo ea lipotoloho tsa ho paka likoloi | 300 000 | 600 000 | 600 000 | 600 000 | 600 000 | 600 000 |
| Litšobotsi tsa 'mele | ||||||
| Tšebeliso ea matla: e sa sebetse / e bala, W | 4,9/6,9 | 4,5/8,4 | 5,0/7,8 | ND | 7,15/9,48 | 5,5/6,0 |
| Boemo ba lerata: ho se sebetse/ho batla, B | ND | ND | 1,8/2,8 | 2,0/ND | 3,4/ND | 2,0/3,6 |
| Boholo ba mocheso, °C: disk on/disk tima | 60/70 | 60/ND | 70/70 | 55/70 | 70/70 | 60/70 |
| Ho hanyetsoa ke ts'okelo: disk on/disk tima | 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) |
| Ka kakaretso litekanyo: L × H × D, mm | Li-147 × 101,9 × 26,1 | Li-147 × 101,9 × 26,1 | Li-147 × 101,9 × 26,1 | Li-147 × 101,9 × 26,1 | Li-147 × 101,9 × 26,1 | Li-147 × 101,6 × 26,1 |
| Boima ba 'mele, g | 690 | 650 | 690 | 720 | 770 | 690 |
| Warranty nako, lilemo | 5 | 5 | 3 | 5 | 3 | 5 |
| Theko ea thekiso (USA, ntle le lekhetho), $ | Ho tsoa ho 549 (newegg.com) | Ho tsoa ho 289 (newegg.com) | Ho tsoa ho 351 (newegg.com) | ND | Ho tsoa ho 301 (newegg.com) | Ho tsoa ho 439 (amazon.com) |
| Theko ea thekiso (Russia), rub. | Ho tloha ho 34 (market.yandex.ru) | Ho tloha ho 17 (market.yandex.ru) | Ho tloha ho 26 (market.yandex.ru) | ND | Ho tloha ho 19 (market.yandex.ru) | Ho tloha ho 27 (market.yandex.ru) |
Mohlala oa pele pokellong ea rona e itekanetseng ea li-drive tse thata tsa boholo bo sa tsitsang - BarraCuda Pro 14 TB - ke drive bakeng sa li-PC tsa desktop le DAS, empa ha se bonolo, empa ke "litsebi". Ka lehlakoreng le leng, sena se bolela hore BarraCuda Pro e tlas'a mefokolo e tloaelehileng ea li-hard drive tsa desktop. Ka mohlala, ha e reretsoe ho kopanngoa ho lihlopha tsa RAID, kaha bakeng sa sena ke ntho e lakatsehang ho ba le TLER (Time-Limited Error Recovery) - sebopeho sa firmware se thibelang HDD ho fofa ka ntle ho sehlopha ka lebaka la boiteko ba nako e telele ba microcontroller. ho bala lefapha la mathata. Ho phaella moo, chassis ea BarraCuda Pro ha e tšoanelehe hantle ho sebetsa setulong kapa NAS e nang le libaskete tse 'maloa, hobane ha e lefelle ho sisinyeha ha potoloho.
Empa ka lehlakoreng le leng, ho fapana le li-hard drive tse ling tse ngata, li-HDD tsa mofuta ona li na le mohloli o eketsehileng oa thepa ea selemo le selemo - ho fihla ho 300 TB ea ho ngola bocha, e ikemiselitse ho sebetsa 24/7 mme e tsamaisana le waranti ea lilemo tse hlano. Mohlomong u ke ke ua tlameha ho tletleba ka ts'ebetso le (bonyane mesebetsing e nang le phihlello ea data e lekanang): ka lebaka la lipoleiti tse robeli tsa 1,75 TB, sesebelisoa se fihlella ts'ebetso e tsitsitseng ea 250 MB / s. Ho phaella moo, moetsi o tšepisa hore lebelo la ho kena ka mokhoa o sa reroang ho BarraCuda Pro le lokela ho ba le phahameng ha le bapisoa le li-drive tse tloaelehileng tsa lik'homphieutha tsa lik'homphieutha, 'me tšebeliso ea matla, ho fapana le hoo, e tlaase ho feta ea mefuta e mengata ea 3,5-inch. Leha ho le joalo, re ntse re tla hlahloba lipolelo tsohle tsa Seagate.
Bakeng sa ho hlola boemo bo holimo ba data ka har'a moralo oa rekoto e tloaelehileng ea perpendicular ntle le ts'ebeliso ea theknoloji ea niche SMR (Shingled Magnetic Recording), Seagate e ile ea tlameha ho kenya ts'ebetsong e 'ngoe ea mekhoa e ts'episang eo re e ngolang selemo le selemo ho rona. , - ho thoeng ho rekota ka mahlakore a mabeli (Tlaleho ea Magnetic ea mahlakore a mabeli). Empa ho fapana le lebitso la eona, TDMR ha e amane le mokhoa oa ho rekota data ka tsela e joalo, 'me e etselitsoe ho eketsa tekanyo ea lerata ho latela maemo a phahameng a lipina ka platter ea makenete ka lebaka la ho baloa ha pina ka nako e le 'ngoe. ka lihlooho tse peli tse baloang: tse qetellang li arohane ka tsela eo lebala le nkang lipina tse haufi, 'me ho ba bonolo ho lefella tšitiso. Nakong e tlang, li-drive tse thata tse nang le TDMR li tla eketsa lihlooho tse ling, 'me hammoho le ho tšepahala ha ho bala ha data, lebelo la eona le ka eketseha, empa sena e ntse e le taba ea bokamoso.
Li-drive tsa BarraCuda Pro li fapana ka litsela tse ngata ho tloha ho lisebelisoa tse amanang le letoto le lecha ntle le sehlomathiso sa Pro - ho qala ka taba ea hore baetsi bohle ba HDD ba na le mefuta e tloaelehileng ea li-desktop e khomaretsoeng ho 6-8 TB. BarraCuda Pro drive e ka hlalosoa e le ngoana oa lekala la seva sa Seagate, le sa sebetseng ka mesebetsi e amanang le ho sebetsa ka lihlopha. Empa ka lebaka leo, theko ea sesebelisoa e nyolohetse boemong ba mehlala ea lik'hamphani, kapa ho feta: Russia, mohlala oa 14-terabyte o ke ke oa fumanoa o theko e tlaase ho feta li-ruble tsa 34, le libakeng tsa mabenkele United States - $ 348. Esita le mefuta e haufi ea Seagate ea molumo o tšoanang e theko e tlaase - ho tloha ho $ 549 kapa 375 ruble.
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Sehlooho se latelang sa teko, e leng 14 TB Ultrastar DC HC530, ke koloi e haufi e neng e emela se molemohali seo lienjiniere tsa Western Digital li ka se etsang ho fihlela mofuta o mocha oa 16 TB o fihla. 'Me ts'ebetsong ea 3DNews, e ile ea fetoha mochine oa pele oa Ultrastar brand hard drive ntle le litlhaku tse tloaelehileng tsa HGST ka lebitso: k'hamphani e fetisitse mefuta eohle ea li-server tlas'a letšoao la eona ka mor'a hore thepa ea HGST e qhaloe ka ho feletseng mokhatlong o kopaneng. Litšobotsing tsa eona tsa bohlokoa, sesebelisoa sena se tšoana le BarraCuda Pro ea molumo o tšoanang: ka har'a nyeoe e tiisitsoeng ea Ultrastar DC HC530 ho boetse ho na le lipoleiti tse robeli tsa makenete tse nang le matla a bohlokoa a 1750 GB, 'me theknoloji ea TDMR e fana ka ho bala ha data ho tloha sebakeng se seholo. litselana. Empa mabapi le li-parameter tse ling le mefuta e fapaneng ea mesebetsi e eketsehileng e tloaelehileng ea li-HDD tsa lik'hamphani, Ultrastar DC HC530 e ke ke ea behoa boemong bo lekanang le mehlala ea li-desktop, esita le haeba BarraCuda Pro e se moemeli ea tloaelehileng oa sehlopha sa eona.
Kahoo, matla a ho ngola a bohlokoa ho liplatele tsa BarraCuda Pro le Ultrastar DC HC530 a tšoana, joalo ka lebelo la spindle, empa sehlahisoa sa WD se tiisa lebelo le phahameng le tsitsitseng la ho bala le ho ngola la data - ho fihla ho 267 MB / s (ha se hlakisa hore na phapang e tsoa hokae, empa liteko li tla bontša hore na e hlile e teng). Li-latency nakong ea phihlello e sa reroang li thusoa ho fokotsa ke mochini o mocha oa mekhahlelo e 'meli oa moloko oa boraro le buffer e kholo ea 512 MB, mme sa bohlokoa ka ho fetesisa, Media Cache - libaka tsa polokelo bakeng sa ho ngola ka potlako ha li-blocks tse hasaneng holim'a lipoleiti. Karolo ea ho qetela e etsa hore li-disk tsa sejoale-joale tse haufi li ts'oana le li-drive tse tiileng, tse nang le karolelano e fapaneng lipakeng tsa likarolo tsa 'mele le li-blocks tse utloahalang. 'Me ho qala ka mefuta ea 10-terabyte Ultrastar DC HC330, WD e boetse e sebelisa memori e nyane ea flash ho boloka ts'ebetso ea ho ngola. Hlokomela hore, hammoho le (mohlomong) ts'ebetso e phahameng haholo ka litekanyetso tsa li-drive tsa makenete, sehlahisoa sa WD se khetholloa ka tšebeliso e itekanetseng ea matla - ha e le hantle, ke sesebelisoa se nang le tšebeliso e tlase ea matla har'a barupeluoa bohle ba liteko, ho ahlola ka liparamente tsa eona tsa phasepoto. .
Lits'oants'o tsa sehlopha sena li hahiloe ka tebello ea ts'ebetso e tsoelang pele ka har'a rack ea seva: ho kenngoa ha spindle ka mahlakoreng a mabeli, puseletso ea rotational vibration - tsena le likarolo tse ling tsa moralo oa Ultrastar DC HC530 li entse hore ho khonehe ho eketsa mojaro oa moralo oa disk ho 550. Lefuba/selemo, 'me MTBF e tloaelehile bakeng sa li-models tse haufi le lihora tse limilione tse 2,5. Haeba ho na le ho hloleha ho sa lebelloang ha ho ntlafatsoa firmware, chip ea spare e rekisoa botong ea taolo. Disk e tla ka liphetoho tse nang le phihlello ea tlhaho ho 4 KB markup kapa mohlala oa likarolo tsa 512-byte, tse nang le sebopeho sa SATA kapa SAS. Tabeng ea ho qetela, khetho ea ho qetela-ho-qetellong ya data encryption e fumaneha hape.
Litheko tsa mabenkele tsa WD Ultrastar DC HC530 ka tlhophiso e nang le boema-kepe ba SATA le mohlala oa legacy 512-byte markup e tsamaellana le litšobotsi tse tsoetseng pele le mahlale a sesebelisoa sena: ho tloha ho RUB 27. mabenkeleng a Marang-rang a Russia le $495 ho Amazon.
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Ho ne ho se bonolo ho bokella pokello ea li-hard drive tsa 14 TB bakeng sa tlhahlobo ea papiso, 'me ha ho mohla re kileng ra khona ho fumana sesebelisoa se loketseng ho tsoa ho moetsi oa boraro - Toshiba. Empa ho e-na le hoo re fumane mohlala oa moloko o latelang, 16 TB. Hona joale lik'hamphani tse tharo tsa hard drive li fana ka li-drive tsa matla a tšoanang, empa sehlahisoa sa Toshiba's MG08 e bile sa pele har'a tsona. Rekoto ea k'hamphani ea Majapane e its'etleha ka liplatelete tse nang le boima ba 'mele bo batlang bo lekana le ba 14TB BarraCuda Pro le Ultrastar hard drive, empa lena ke lekhetlo la pele Toshiba a khona ho paka li-pancakes tse robong ka har'a kesi e tloaelehileng ea 3,5-inch. Eseng ntle le theknoloji ea TDMR, e fetohileng boemo ba bohlokoa bakeng sa ho hapa meeli e mecha ea bokhoni. Mokhoa oa ho bala le ho ngola oa Toshiba MG08 o lokela ho ba boemong ba WD Ultrastar DC HC530, empa, ka mokhoa o makatsang, moetsi ha a senole lintlha tse mabapi le ts'ebetso ea sesebelisoa.
Empa hoa tsebahala hore Toshiba le eena o nkile mehato ea ho eketsa ts'epo mme ka nako e ts'oanang a fokotsa latency ea ts'ebetso ea ho ngola: "flash memory chip" e ka har'a MG08 ha motlakase o tima e u lumella ho boloka data e rometsoeng ke molaoli oa moamoheli. bakeng sa ho ngola, empa ho latela liphetho tsa liteko, hape e sebetsa joalo ka memori ea "cache" ea boemo ba bobeli kamora buffer ea DRAM. Leha ho le joalo, theknoloji ena (Persistent Write Cache) e hlaha feela ka litlhaloso tsa li-disk tse nang le sebopeho sa 512-byte emulation, e leng mohloli o eketsehileng oa kotsi nakong ea ho hlōleha ha matla ('me ho isa tekanyong e itseng e utsoa tshebetso) ka lebaka la tlhokahalo ea ho bala. -modify-write operation nako le nako ha rekota li-blocks tse utloahalang tse sa lumellaneng le meeli ea likarolo tsa 'mele. Empa letoto la MG08 le kenyelletsa mehlala e nang le phihlello ea matsoalloa ho likarolo tsa 4-kilobyte. Hore na sena se bolela hore tse qetellang ha li na memori ea flash, kapa hore ts'ebetso ea "backup" e sa tsoa tlosoa ho eona, ha re tsebe. Empa ho sa tsotelehe PWC, Toshiba MG08, le li-drive tse ling tse tsoang k'hamphaning ena, li sebelisa li-algorithms tsa Dynamic Cache, tseo, ho latela moetsi, li abang sebaka sa buffer hantle lipakeng tsa ts'ebetso ea ho bala le ho ngola. Hape ha re na lintlha tse qaqileng ka tsona.
Mehloli e meng ea mamello e eketsehileng ea liphoso moralong oa Toshiba MG08 ke li-spindle mounts mahlakoreng ka bobeli le li-sensor tsa rotational vibration. Li-drive tsena li etselitsoe ho ngola 550 TB ea data ka selemo, ho ba le nako e lekaneng lipakeng tsa ho hloleha ha lihora tse limilione tse 2,5, maemo a lisebelisoa tsa khoebo, le nako ea tiisetso ea lilemo tse hlano. Litlhophiso tse 'maloa tse fapaneng tsa li-drive li fumaneha ho odara, ka sebopeho sa SATA kapa SAS le encryption ea boikhethelo ea ho qetela. Leha ho le joalo, re ke ke ra u fa tataiso ea theko: Toshiba ea 16-terabyte drive e ile ea hlahisoa morao ka Pherekhong, empa e ntse e le sebata se sa tloaelehang thekisong ea mabenkele.
Toshiba MG08 16 TB
Kaha joale re kopane le bankakarolo ba bararo ba ka sehloohong ba liteko, ha re shebeng li-hard drive tse nyane tseo re tlamehang ho bapisa le mefuta e mecha ea 14-16 terabyte. E 'ngoe ea tsona, Exos X10 e nang le matla a 10 TB, ke koloi e haufi e nang le lipoleiti tse supileng tsa makenete ntlong e tiisitsoeng. Leha ho le joalo, kaha matla a ka sebelisoang a platter a eketsehile ho tloha ho 1429 ho isa ho 1750 GB kapa ho feta, lebelo la ho fihlella ka tatellano ea li-drive tse thata le tsona li lokela ho eketseha, ka parameter ena Exos X10 ha e tlase ho feta 14 TB BarraCuda Pro ho latela litlhaloso tsa li-drive ka bobeli. Ho hlakile hore ho na le ho hong ho sa kenyelletseng litlhalosong tsa li-hard drive tsa Seagate, empa re na le monyetla oa ho tseba tsohle tse sebetsang.
E le ho eketsa lebelo la ts'ebetso ea ho fihlella ka tšohanyetso, letoto la Exos le na le mokhoa o tsoetseng pele oa ho ngola oa Caching oa AWC (Advanced Write Caching), o fokotsang nako ea ho arabela. Tlas'a AWC, lingoloa li arotsoe ka har'a "buffer ea DRAM joalo ka ha li le ka har'a hard drive efe kapa efe, empa buffer e boloka kopi ea data ka mor'a hore e felisoe ka platter, 'me litaba tse ka har'a seipone li ka baloa hang-hang ke moamoheli. molaoli. IN 2,5-inch AWC form factor e kenyelletsa sethala se latelang se potlakileng - libaka tse bolokiloeng holim'a lipoleiti, moo data e tsoang ho DRAM e ngotsoeng ka tatellano e latellanang (Media Cache), hammoho le mohopolo o fokolang o sa fetoheng bakeng sa ho pholosa data. ho tsoa ho buffer ha ho ka etsahala hore matla a tima. Empa Exos X10 ha e na memori ea flash, mme mohlomong Media Cache hammoho le eona.
Ha ho bapisoa le li-drive tse thata tsa bareki bakeng sa likhomphutha tsa desktop le NAS, li-drive tsa Exos li khetholloa ke MTBF e phahameng (lihora tse limilione tse 2,5) le mojaro oa moralo (550 TB / selemo), bokhoni ba ho sebetsa ka har'a rack ea seva ntle le lithibelo palo ea libaskete, le bophelo ba tšebeletso ea lilemo tse hlano. tšebeletso ea tiisetso. Hard drive e nang le nomoro ea mohlala ST10000NM0016, eo re e fumaneng bakeng sa tlhahlobo, e boetse ke ea liphetoho tsa Hyperscale, tse nang le matla a fokolang a sebelisoang ha li bapisoa le litho tse ling tsa lelapa la Exos, empa li fumaneha feela ka sebopeho sa SATA le ho etsisa likarolo tsa 512-byte. . Litlhophisong tse nang le sehokelo sa SAS, mefuta ea Exos le eona e na le likhetho tse nang le phihlello ea matsoalloa ho likarolo tsa 4 KB, hammoho le encryption ea ho qetela ea disk e felletseng.
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Seagate IronWolf hard drive e sa tsoa hlahisoa ho baemeli ba bacha ba mofuta ona hammoho le Seagate SSD bakeng sa polokelo ea marang-rang. Moetso oa IronWolf oa 12-terabyte o bonahala o na le lipoleiti tse nang le sebopeho se tšoanang le sa Exos X10, feela mona ho na le e 'ngoe hape. Leha ho le joalo, Seagate e hakanya ts'ebetso ea boko ba eona ho ts'ebetso ea ho bala le ho ngola ka tatellano e tlase haholo - ke 210 MB/s feela. 'Me ha ho na mahlale a morao-rao a reretsoeng ho lefella karabelo e phahameng ea latency e teng ho li-drive tsa makenete.
Empa li-drive tse thata tsa IronWolf, ho qala ka matla a 4 TB, li alimile likarolo tse 'maloa tsa lisebelisoa ho tsoa letotong la Exos tse tlatsetsang ho eketsa mamello ea liphoso. The magnetic platter block ea hard drive e 'ngoe le e' ngoe e leka-lekana ka lifofane tse peli, 'me li-sensor tsa rotational vibration li netefatsa ts'ebetso e tsitsitseng lits'ebetsong tsa polokelo ea rack-mount kapa NAS e ikemetseng e nang le li-cages tse ka bang robeli tsa disk. IronWolf e etselitsoe maemo a itekanetseng a ts'ebetso e nang le mojaro oa moralo oa 180 TB / selemo mme e na le MTBF ea lihora tse limilione tse 1. Ka lebaka leo, nako ea tiisetso ea IronWolf ha e telele joalo ka mehlala e tebileng ho lethathamong la Seagate - lilemo tse tharo.
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Tlas'a mofuta oa S300, k'hamphani ea Japane Toshiba e lokolotse letoto la li-drive bakeng sa lits'ebetso tsa ho lekola livideo - li-hard drive tsena le tsona li inehetse ho tsa bona. leqepheng la 3DNews. Ka ho holisa protocol ea phetisetso ea data ea ATA Streaming Command Set, mefuta ea khale ea Toshiba S300 e netefatsa ho rekota video ka nako e le 'ngoe ho tsoa ho lik'hamera tse 64, empa mantlha ke li-drive tse tloaelehileng tsa NAS le DAS tse nang le bokhoni ba ho sebetsa 24/7 le MTBF e ntle: joalo ka IronWolf, ke lihora tse limilione tse 1, 'me nako ea tiisetso e tšoana le lilemo tse tharo. Ka lebaka la melemo ea moralo oa chassis ea S300 - ho kenya spindle ka mahlakoreng a mabeli le matšeliso a matla a ho sisinyeha - hoa khonahala ho kenya lisebelisoa tse fetang tse robeli ka har'a sethala se le seng sa rack kapa NAS e sa sebetseng.
Moetso oa S300, o khethiloeng bakeng sa ho bapisoa le lihlahisoa tse ncha tse nang le matla a 14-16 TB, o hahiloe holim'a mochini oa mochini oa li-drive tsa MD06ACA-V mme o na le lipoleiti tse supileng tsa makenete, mme lintlha tsa sesebelisoa li bonts'a lebelo le sa reroang la ho bala / ho ngola la 248. MB/s, e tloaelehileng bakeng sa li-HDD tsa sejoale-joale tse nang le bokhoni bo boholo. Empa ho mekhoa e sebelisoang ho li-hard drive tsa Toshiba ho fokotsa latency, S300 e na le mosebetsi oa Dynamic Cache feela.
Ho fapana le barupeluoa ba bang bohle ba liteko, S300, leha e na le lipoleiti tse supileng tse teteaneng, ha e na helium 'me e behiloe ka har'a mokotla o tloaelehileng oa moea. Ho bonahala eka ke ka lebaka lena hore mohlala oa 10 terabyte o na le boleng bo phahameng ka ho fetisisa ba tšebeliso ea matla tafoleng ea kakaretso ea litlhaloso tsa barupeluoa ba teko, 'me parameter ena, le hoja ka boeona e le ea bohlokoa feela bakeng sa batsamaisi ba setsi sa data, e khetholla ka ho toba mocheso oa mocheso. HDD. Re tla hlahloba tšebeliso ea matla ea S300 ka borona, empa hajoale re tla ela hloko ntlha ena.
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Source: 3dnews.ru