Sabuwar labarin: Gwajin 14-16 TB hard drives: ba kawai girma ba, amma mafi kyau

Ƙarfin tuƙi yana ci gaba da ƙaruwa, amma haɓakar haɓaka yana raguwa a hankali a cikin 'yan shekarun nan. Don haka, don fitar da tuƙi na 4 na farko na tarin tarin fuka bayan 2 TB HDDs ya fara siyarwa, masana'antar ta shafe shekaru biyu kawai, an ɗauki shekaru uku kafin a kai alamar TB 8, kuma an ɗauki ƙarin shekaru uku don ninka ƙarfin 3,5. - inch rumbun kwamfutarka yayi nasara sau ɗaya kawai a cikin shekaru biyar.

An sami ci gaba na baya-bayan nan godiya ga cikakken jerin sabbin hanyoyin warwarewa. A yau, ko da irin waɗannan masu ra'ayin mazan jiya kamar Toshiba, waɗanda har kwanan nan sun ƙi helium, ana tilasta su samar da rumbun kwamfyuta a cikin lamuran da aka rufe, kuma adadin faranti akan sandar ya karu zuwa guda tara - kodayake sau ɗaya, kuma na dogon lokaci, faranti biyar sun kasance. la'akari da m iyaka. A cikin takamaiman niches, ana amfani da abin da ake kira fasaha. rikodin tayal (SMR, Shingled Magnetic Recording), wanda sashin ke yin waƙa akan farantin wani ɗan lokaci. Kuma a ƙarshe, don matsawa iyakar ƙarfin rumbun kwamfutarka daga 14 zuwa 16 TB ba tare da amfani da SMR ba, masana'antun dole ne su aiwatar da ɗayan fasahohin da ke da albarka, jerin abubuwan da ke raguwa a hankali waɗanda muke haifuwa kowace shekara. labaran karshe, - karanta waƙa ta kawuna da yawa lokaci guda (TDMR, Rikodin Magnetic Mai Girma Biyu). Ci gaba da ci gaba ba dade ko ba dade yana buƙatar manyan canje-canje a cikin tushen aikin HDD - kamar dumama platter ta amfani da Laser ko microwaves (HAMR/MAMR, Heat/Maganin Taimakon Magnetic Rikodi) a lokacin da ya wuce shugaban rikodi.

Koyaya, yana da sauƙi a ga cewa duk dabarun da aka bayyana suna da niyya da farko don haɓaka ƙimar rubutu da haɓaka ƙarar a kan igiya guda ɗaya, kodayake yawancinsu suna da tasiri mai fa'ida ta hanyar haɓaka saurin karantawa da rubutu na bayanan layi. Dangane da wannan sigar, HDDs na zamani sun keta iyakar 250 MB/s kuma sun riga sun yi kwatankwacin tukwici na mabukaci na farko. Amma saurin samun damar shiga sassan faifan maganadisu bazuwar da kyar ke samun ci gaba, kuma dangane da girma, adadin ayyukan da ake gudanarwa a cikin dakika daya ya zama kadan. A lokaci guda kuma, ƙarin buƙatun don haƙuri ga kuskure ya taso, saboda yawancin bayanan da aka adana akan sandar guda ɗaya, mafi mahimmancin kada a rasa shi kuma yana ɗaukar tsawon lokaci don dawo da shi.

Amma wadanda suka kirkiri na'urorin ma'ajiyar maganadisu suma sun sami amsar wannan kalubale. Mun ɗauki rumbun kwamfyuta guda uku daga 14TB zuwa 16TB don ganin yadda fasahar mai shekaru 64 ke daidaitawa zuwa 2019, kuma mun lura da wasu abubuwa. Misalai na gwanayen faifai na zamani mai girman inch 3,5, waɗanda aka kera don sabar rak da tsarin ajiya, suna da wani abu da ya dace da na'urori masu ƙarfi - daga ka'idodin sassan da ke magana zuwa haɗa kai tsaye na kwakwalwan kwamfuta zuwa cikin ma'aunin ƙwaƙwalwar gida. Kuma samfuran mabukaci, bi da bi, sun kasance kusa da halayensu ga takwarorinsu na uwar garken, har ma da bayanin "HDD tebur" ba ya faɗi da yawa game da sauri da amincin na'urar. Amma manufar wannan bita ba ta iyakance ga kalmomi na gaba ɗaya ba. Muna da niyyar gano yadda sabbin abubuwa a cikin ƙirar rumbun kwamfutarka ke fassara zuwa lambobi masu wahala.

⇡#Halayen fasaha na mahalarta gwaji

Kafin mu fara nazarin sakamakon gwajin, yana da kyau mu yi nazarin halayen na'urorin da za mu yi mu'amala da su a hankali. A wannan karon ba su da yawa kamar yadda suka saba faruwa a cikin gwaje-gwajen rukuninmu, amma mun cika manyan sharuɗɗan, ba tare da wanda kwatancen rumbun kwamfyuta ba zai iya da'awar kammalawa. Binciken ya haɗa da samfurori daga dukkan masana'antun guda uku - Seagate, Toshiba da Western Digital, kuma suna cikin nau'i daban-daban: mabukaci da uwar garken. Babban halayen da ke haɗa su shine girma na 14 ko 16 TB, akwati da aka rufe da helium, da saurin gudu na 7200 rpm. Kuma don kwatanta da masu nauyi, gwajin ya ƙunshi ƙananan na'urori guda uku waɗanda muka saba da su (10 da 12 TB), waɗanda aka tsara don amfani da su a cikin sabobin, gida ko ofis NAS.

Manufacturer	Seagate			Toshiba		Western Digital
Sauti	BarraCuda Pro	Exos X10	IronWolf	MG08	S300	Ultrastar DC HC530
Lambar samfurin	ST14000DM001	Saukewa: ST10000NM0016	ST12000VN0008	MG08ACA16TE	Saukewa: HDWT31AUZSVA	WUH721414ALE6L4
Factor Factor	Xnumx inch	Xnumx inch	Xnumx inch	Xnumx inch	Xnumx inch	Xnumx inch
dubawa	SATA 6Gb/s	SATA 6Gb/s	SATA 6Gb/s	SATA 6Gb/s	SATA 6Gb/s	SATA 6Gb/s
Capacity, GB	14 000	10 000	12 000	16 000	10 000	14 000
Kanfigareshan
Gudun juyi juyi, rpm	7 200	7 200	7 200	7 200	7 200	7 200
Yawan rikodi mai amfani, GB/plater	1 750	1 429	1 500	1 778	1 429	1 750
Yawan faranti/kai	8/16	7/14	8/16	9/18	7/14	8/16
Girman sashi, bytes	4096 (512 byte kwaikwayo)	4096 (512 byte kwaikwayo)	4096 (512 byte kwaikwayo)	4096 (512 byte kwaikwayo)	4096 (512 byte kwaikwayo)	4096 (512 byte kwaikwayo)
Girman buffer, MB	256	256	256	512	256	512
Yawan aiki
Max. ɗorewar saurin karantawa na jeri, MB/s	250	249	210	ND	248	267
Max. Gudun rubutu mai dorewa, MB/s	250	249	210	ND	248	267
Matsakaicin lokacin bincike: karanta/rubutu, ms	ND	ND	ND	ND	ND	7,5/ND
hakuri da laifi
Nauyin ƙira, TB/g	300	ND	180	550	180	550
Kurakurai masu saurin karantawa, adadin abubuwan da suka faru a kowace ƙarar bayanai (bits)	1/10^15	1/10^15	1/10^15	10/10^16	10/10^14	1/10^15
MTBF (ma'anar lokaci tsakanin gazawa), h	ND	2 500 000	1 000 000	2 500 000	1 000 000	2 500 000
AFR (yiwuwar gazawar kowace shekara), %	ND	0,35	ND	ND	ND	0,35
Yawan hawan keken kai	300 000	600 000	600 000	600 000	600 000	600 000
Yanayi na jiki
Amfanin wuta: rashin aiki / karanta-rubutu, W	4,9/6,9	4,5/8,4	5,0/7,8	ND	7,15/9,48	5,5/6,0
Matsayin amo: rashin aiki/bincike, B	ND	ND	1,8/2,8	2,0/ND	3,4/ND	2,0/3,6
Matsakaicin zafin jiki, °C: faifan kunnawa/kashe	60/70	60/ND	70/70	55/70	70/70	60/70
Juriya ta girgiza: faifan kunne a kashe	ND	40g (2 ms) / 250 g (2 ms)	70g (2 ms) / 250 g (2 ms)	70g (2 ms) / 250 g (2 ms)	70g (2 ms) / 250 g (2 ms)	70g (2 ms) / 300 g (2 ms)
Gabaɗaya girma: L × H × D, mm	147 × 101,9 × 26,1	147 × 101,9 × 26,1	147 × 101,9 × 26,1	147 × 101,9 × 26,1	147 × 101,9 × 26,1	147 × 101,6 × 26,1
Nauyi, g	690	650	690	720	770	690
Lokacin garanti, shekaru	5	5	3	5	3	5
Farashin sayarwa (Amurka, ban da haraji), $	Daga 549 (newegg.com)	Daga 289 (newegg.com)	Daga 351 (newegg.com)	ND	Daga 301 (newegg.com)	Daga 439 (amazon.com)
Farashin Retail (Rasha), rub.	Daga 34 (market.yandex.ru)	Daga 17 (market.yandex.ru)	Daga 26 (market.yandex.ru)	ND	Daga 19 (market.yandex.ru)	Daga 27 (market.yandex.ru)

Samfurin farko a cikin mafi girman tarin tukwicinmu na girman girman - BarraCuda Pro 14 TB - tuƙi ne don kwamfutocin tebur da DAS, amma ba mai sauƙi ba, amma “ƙwararre”. A gefe guda, wannan yana nufin cewa BarraCuda Pro yana ƙarƙashin ƙayyadaddun ƙayyadaddun ƙayyadaddun fayafai na tebur. Misali, ba a yi niyya don haɗawa cikin tsararrun RAID ba, tunda saboda wannan yana da kyawawa don samun TLER (Kuskure Mai Iyakan Lokaci) - saitin firmware wanda ke hana HDD tashi daga cikin tsararru saboda tsayin daka na yunƙurin microcontroller. don karanta sashin matsala. Bugu da kari, BarraCuda Pro chassis bai dace da aiki a cikin shiryayye ko NAS tare da kwanduna da yawa ba, saboda baya rama jujjuyawan juyi.

Amma a gefe guda, ba kamar sauran manyan faifai na tebur ba, HDDs na wannan alamar suna da haɓaka kayan aiki na shekara-shekara - har zuwa TB 300 na sake rubutawa, suna shirye don yin aiki 24/7 kuma suna tare da garanti na shekaru biyar. Wataƙila ba za ku yi kuka game da aikin ko dai ba (aƙalla a cikin ayyuka tare da samun damar bayanai masu yawa): godiya ga faranti takwas na TB 1,75, na'urar tana samun ingantaccen kayan aiki na 250 MB/s. Bugu da kari, masana'anta yayi alƙawarin cewa saurin samun damar bazuwar a cikin BarraCuda Pro yakamata ya zama mafi girma idan aka kwatanta da kwamfutoci na yau da kullun don kwamfutocin tebur, kuma amfani da wutar lantarki, akasin haka, ya yi ƙasa da na yawancin nau'ikan inci 3,5. Koyaya, har yanzu za mu bincika duk bayanan Seagate.

Domin cin nasara irin wannan babban matakin yawan bayanai a cikin tsarin daidaitattun rikodi na yau da kullun ba tare da amfani da fasahar SMR (Shingled Magnetic Recording) ba, Seagate ya aiwatar da ɗayan hanyoyin da aka yi alkawarin rubutawa kowace shekara a cikin mu. labaran karshe, - abin da ake kira rikodi mai girma biyu (Rikodin Magnetic Mai Girma Biyu). Amma akasin sunansa, TDMR ba shi da alaƙa da hanyar rikodin bayanai kamar haka kuma an ƙirƙira shi don haɓaka ƙimar sigina-zuwa amo a cikin yanayin yawan yawan waƙoƙi akan farantin maganadisu saboda karatun waƙa lokaci guda. ta hanyar karantawa guda biyu: na ƙarshe an raba su ta hanyar da filin ya ɗauki waƙoƙin da ke kusa, kuma ya zama mafi sauƙi don ramawa ga tsoma baki. A nan gaba, rumbun kwamfyuta tare da TDMR za su ƙara daɗa kai, kuma tare da amincin karatun bayanai, saurin sa na iya ƙaruwa, amma har yanzu wannan lamari ne na gaba.

Motocin BarraCuda Pro sun bambanta ta hanyoyi da yawa daga na'urori masu alaƙa na ƙaramin jerin ba tare da prefix na Pro ba - farawa da gaskiyar cewa duk masana'antun HDD suna da daidaitattun samfuran tebur da ke makale a 6-8 TB. BarraCuda Pro drive za a iya kwatanta shi azaman zuriyar reshen uwar garken Seagate, wanda aka hana shi ayyukan da suka shafi aiki a cikin tsararraki. Amma a sakamakon haka, farashin na'urar ya tashi zuwa matakin kamfanoni, ko ma mafi girma: a Rasha, ba za a iya samun samfurin 14-terabyte mai rahusa fiye da 34 rubles ba, kuma a kan wuraren sayar da kayayyaki a Amurka - $ 348. Ko da samfurin Seagate na kusa da layi ɗaya yana da ƙasa - daga $ 549 ko 375 rubles.

Batun gwaji na gaba, 14 TB Ultrastar DC HC530, tuƙi ne kusa da layi wanda ke wakiltar mafi kyawun abin da injiniyoyin Western Digital za su iya yi har sai sabon samfurin TB 16 ya zo. Kuma a cikin aikin 3DNews, ya zama babban rumbun kwamfyuta na farko na Ultrastar ba tare da haruffan HGST na yau da kullun ba a cikin sunan: kamfanin ya canza duk samfuran uwar garke a ƙarƙashin alamar sa bayan an narkar da kadarorin HGST gaba ɗaya a cikin haɗin gwiwa. A cikin mahimman halayensa, wannan na'urar tana kama da BarraCuda Pro na wannan ƙarar: a cikin akwati da aka rufe na Ultrastar DC HC530 akwai kuma faranti magnetic guda takwas tare da damar 1750 GB mai amfani, kuma fasahar TDMR tana ba da karatun bayanai daga sararin samaniya. waƙoƙi. Amma dangane da wasu sigogi da nau'ikan ƙarin ayyuka na kwatankwacin HDDs na kamfani, ba za a iya sanya Ultrastar DC HC530 a kan matakin daidai da samfuran tebur ba, koda kuwa BarraCuda Pro ba wakilci bane na nau'in sa.

Don haka, da amfani rubuta yawa akan BarraCuda Pro da Ultrastar DC HC530 platters iri ɗaya ne, kamar yadda yake da sauri, amma samfurin WD yana ba da tabbacin ingantaccen karantawa da rubuta saurin bayanai - har zuwa 267 MB / s (ba haka ba ne. bayyana inda bambancin ya fito, amma gwaje-gwaje za su nuna ko akwai gaske). Latencies a lokacin bazuwar damar ana taimaka wa rage ta sabon, ƙarni na uku mai kunnawa mataki biyu da babban 512 MB buffer, kuma mafi mahimmanci, Media Cache - wuraren ajiyar wuri don saurin rubuta tubalan da aka warwatse a saman platters. Siffar ta ƙarshe tana yin faifai na zamani na kusa da su kama da ingantattun abubuwan tafiyarwa na jihohi, waɗanda kuma suna da madaidaicin rabo tsakanin sassan jiki da tubalan hankali. Kuma farawa da nau'ikan terabyte 10-terabyte Ultrastar DC HC330, WD kuma yana amfani da ƙaramin adadin ƙwaƙwalwar walƙiya don rubuta ayyukan cache. Yi la'akari da cewa, tare da (yiwuwar) babban aiki ta ma'auni na kayan aikin maganadisu, samfurin WD yana bambanta ta hanyar matsakaicin ƙarfin amfani - a zahiri, ita ce na'urar da ke da mafi ƙarancin wutar lantarki tsakanin duk mahalarta gwajin, ana yin la'akari da sigogin fasfo ɗin sa. .

An gina direbobin wannan ajin tare da tsammanin ci gaba da aiki a cikin rakiyar uwar garken: hawa mai gefe biyu, ramuwa mai jujjuyawa - waɗannan da sauran fasalulluka na ƙirar Ultrastar DC HC530 sun ba da damar haɓaka ƙirar ƙira na faifai zuwa 550 TB/shekara, da kuma MTBF ne na hali na kusa-models 2,5 miliyan hours. Idan akwai yuwuwar gazawar lokacin sabunta firmware, ana siyar da guntu mai fa'ida akan allon sarrafawa. Faifan ya zo cikin gyare-gyare tare da samun dama ta asali zuwa alamar 4 KB ko kwaikwaya na sassan 512-byte, tare da haɗin SATA ko SAS. A cikin yanayin ƙarshe, zaɓin ɓoyayyen bayanai na ƙarshe zuwa ƙarshe yana kuma samuwa.

Farashin dillali na WD Ultrastar DC HC530 a cikin tsari tare da tashar jiragen ruwa na SATA da kwaikwayi na gado na 512-byte sun dace da ingantattun halaye da fasahar wannan na'urar: daga RUB 27. a cikin shagunan kan layi na Rasha da $ 495 akan Amazon.

Ba abu mai sauƙi ba ne a haɗa tarin rumbun kwamfyuta na TB 14 don gwada gwadawa, kuma ba mu taɓa samun na'urar da ta dace ba daga masana'anta na uku - Toshiba. Amma a maimakon haka mun sami samfurin na gaba tsara, 16 TB. Yanzu duk kamfanonin rumbun kwamfyuta guda uku suna ba da kayan aiki iri ɗaya, amma samfurin MG08 na Toshiba shine farkon a cikinsu. Rikodin kamfanin na Jafananci ya dogara da faranti tare da kusan, idan ba daidai ba, girman jiki iri ɗaya kamar 14TB BarraCuda Pro da Ultrastar hard drives, amma wannan shine karo na farko da Toshiba ya sami damar shirya pancakes tara a cikin daidaitaccen yanayin 3,5-inch. Ba tare da fasahar TDMR ba, wanda ya zama muhimmin yanayi don cin nasarar sabbin iyakokin iya aiki. Abun shigar da rubutu/rubutu na layi na Toshiba MG08 yakamata ya kasance a matakin WD Ultrastar DC HC530, amma, abin ban mamaki, masana'anta baya bayyana wani cikakken bayani game da aikin na'urar.

Amma an san cewa Toshiba ya kuma ɗauki matakan haɓaka aminci kuma a lokaci guda rage latency na ayyukan rubutawa: guntuwar ƙwaƙwalwar ajiyar walƙiya da ke kan jirgin MG08 a yayin da aka kashe wutar lantarki yana ba ku damar adana bayanan da mai sarrafa ya aiko. don rubutawa, amma yin hukunci da sakamakon gwajin, kuma yana aiki azaman ƙwaƙwalwar ajiyar cache matakin na biyu bayan buffer DRAM. Duk da haka, wannan fasaha (Persistent Write Cache) yana bayyana ne kawai a cikin ƙayyadaddun faifai tare da ƙirar 512-byte layout, wanda shine ƙarin tushen haɗari yayin gazawar wutar lantarki (kuma har zuwa wani lokaci yana satar aiki) saboda buƙatar yin karatu. -gyara-rubutu aiki kowane lokaci bayanan tubalan ma'ana waɗanda ba su dace da iyakokin sassan jiki ba. Amma jerin MG08 kuma sun haɗa da ƙira tare da samun dama ga sassan 4-kilobyte. Ko wannan yana nufin cewa na ƙarshen ba su da cikakken ƙwaƙwalwar flash, ko kuma an cire aikin madadin daga gare ta, ba mu sani ba. Amma ba tare da la'akari da PWC, Toshiba MG08, da sauran abubuwan tafiyarwa daga wannan kamfani, suna amfani da Dynamic Cache algorithms, wanda, bisa ga masana'anta, mafi kyawun rarraba sarari tsakanin karantawa da rubuta ayyukan. Har ila yau, ba mu da wani cikakken bayani game da su.

Sauran hanyoyin haɓaka haƙƙin kuskure a cikin ƙirar Toshiba MG08 sune ɗorawa na igiya a ɓangarorin biyu da na'urori masu auna girgiza. An tsara waɗannan injiniyoyi don rubuta TB 550 na bayanai a kowace shekara, suna da ma'ana tsakanin gazawar sa'o'i miliyan 2,5, daidaitattun na'urorin kasuwanci, da lokacin garanti na shekaru biyar. Saitunan tuƙi daban-daban suna samuwa don yin oda, tare da keɓancewar SATA ko SAS da ɓoye ɓoye-zuwa-ƙarshen zaɓi na zaɓi. Koyaya, ba za mu iya ba ku jagorar farashi ba: Motar Terabyte 16 na Toshiba an gabatar da ita a watan Janairu, amma har yanzu dabba ce da ba kasafai ba a cikin tallace-tallace.

Toshiba MG08 16 TB

Yanzu da muka sadu da manyan mahalarta gwajin guda uku, bari mu kalli ƙananan rumbun kwamfyuta waɗanda dole ne mu kwatanta sabbin samfuran terabyte 14-16. Daya daga cikinsu, Exos X10 mai karfin TB 10, wata mota ce ta kusa da ke dauke da faranti guda bakwai a cikin gidaje da aka rufe. Kuma ko da yake, tun da ikon da ake amfani da shi na platter ya karu daga 1429 zuwa 1750 GB ko fiye, saurin samun damar rumbun kwamfyuta ya kamata kuma ya karu, a cikin wannan sigar Exos X10 kusan ba kasa da 14 TB BarraCuda Pro bisa ga dalla-dalla na duka tafiyarwa. Wani abu a fili baya ƙara sama a cikin ƙayyadaddun ƙayyadaddun kayan aikin Seagate, amma muna da damar gano komai a aikace.

Domin ƙara saurin ayyukan shiga bazuwar, jerin Exos suna da ɓullo da tsarin AWC (Advanced Write Caching) rubuta tsarin caching, wanda ke rage lokacin amsawa. A karkashin AWC, ana tattara rubuce-rubuce cikin ma'ajin DRAM kamar yadda suke a cikin kowane rumbun kwamfutarka, amma buffer yana riƙe da kwafin bayanan bayan an watsar da shi zuwa farantin, kuma mai watsa shiri na iya karanta abubuwan da ke cikin buffer ɗin madubi nan da nan. mai sarrafawa. IN Seagate Hard Drives Siffar sigar AWC mai inci 2,5 ta haɗa da mataki mafi sauri na gaba - wuraren da aka tanada akan saman faranti, inda aka rubuta bayanai daga DRAM a jeri-jere (Cache Media), da ƙaramin adadin ƙwaƙwalwar da ba ta da ƙarfi don ceton bayanai. daga buffer a yayin da aka samu gazawar wutar lantarki. Amma Exos X10 ba shi da ƙwaƙwalwar walƙiya, kuma watakila Media Cache tare da shi.

Idan aka kwatanta da rumbun kwamfyutocin mabukaci don kwamfutocin tebur da NAS, Exos jerin fayafai ana bambanta su da babban MTBF (awanni miliyan 2,5) da nauyin ƙira (550 TB / shekara), ikon yin aiki a cikin tarawar sabar ba tare da hani akan adadin kwanduna ba, da rayuwar sabis na shekaru biyar. sabis na garanti. Hard ɗin da ke da lambar ƙirar ST10000NM0016, wanda muka karɓa don gwaji, kuma yana cikin gyare-gyaren Hyperscale, waɗanda ke da ƙarancin wutar lantarki idan aka kwatanta da sauran membobin gidan Exos, amma ana samun su kawai tare da ƙirar SATA da kwaikwayi na sassan 512-byte. . A cikin daidaitawa tare da mai haɗin SAS, samfuran Exos kuma suna da zaɓuɓɓuka tare da damar ɗan ƙasa zuwa sassan 4 KB, da kuma ɓoyayyen faifai na ƙarshe zuwa ƙarshen.

Seagate IronWolf rumbun kwamfutarka kwanan nan an nuna shi a ciki bitar mu sababbin wakilan wannan alamar tare da Seagate SSD don ajiyar cibiyar sadarwa. Samfurin IronWolf mai lamba 12-terabyte ya bayyana yana sanye da faranti mai girman shimfidar jiki iri ɗaya kamar Exos X10, anan kawai akwai ƙarin ɗaya daga cikinsu. Koyaya, Seagate yana ƙididdige aikin ƙwalwar sa a cikin jerin ayyukan karantawa da rubutawa ƙasa da ƙasa - 210 MB/s kawai. Kuma babu wasu ingantattun fasahohin da ke da nufin ramawa ga babban rashin jinkirin da ke tattare da motsin maganadisu.

Amma duk wani rumbun kwamfyuta na IronWolf, wanda ya fara da karfin 4 TB, ya aro wasu fasalulluka na kayan masarufi daga jerin Exos wadanda ke ba da gudummawa ga karuwar hakuri da kuskure. Katange platter Magnetic na kowane rumbun kwamfutarka yana daidaitawa a cikin jirage biyu, kuma na'urori masu auna firikwensin girgiza suna tabbatar da ingantaccen aiki a cikin tsarin ma'ajiyar rack-Mount ko NAS kadai tare da cages guda takwas. An tsara IronWolf don matsakaicin yanayin aiki tare da nauyin ƙira na 180 TB / shekara kuma yana da MTBF na sa'o'i miliyan 1. A sakamakon haka, lokacin garanti na IronWolf bai kasance ba idan dai don ƙarin samfura masu mahimmanci a cikin kasida ta Seagate - shekaru uku.

A karkashin alamar S300, kamfanin Toshiba na Japan ya fito da jerin tukwici don tsarin sa ido na bidiyo - waɗannan rumbun kwamfyuta kuma an sadaukar da su ga nasu. обзор a shafukan 3DNews. Ta hanyar faɗaɗa ka'idar canja wurin bayanai ta ATA Streaming Command Command, tsofaffin samfuran Toshiba S300 suna ba da garantin rikodin bidiyo na lokaci guda daga kyamarori na sa ido 64, amma a cikin ainihin su su ne na'urori na yau da kullun don NAS da DAS tare da ikon yin aiki 24/7 da MTBF mai kyau: kamar IronWolf, sa'o'i miliyan 1 ne, kuma lokacin garanti iri ɗaya ne na shekaru uku. Godiya ga fa'idodin ƙira na S300 chassis - hawan igiya mai gefe biyu da diyya mai jujjuyawa mai aiki - yana yiwuwa a shigar da fiye da takwas na waɗannan na'urori a cikin shiryayye ɗaya ko NAS na tsaye kyauta.

Samfurin S300, wanda aka zaɓa don kwatantawa da sabbin samfura tare da ƙarfin 14-16 TB, an gina shi akan kayan masarufi na kayan aikin uwar garken MD06ACA-V kuma yana ƙunshe da faranti guda bakwai, kuma ƙayyadaddun na'urar suna nuna saurin karantawa/ rubuta bazuwar 248 MB/s, na yau da kullun don babban ƙarfin HDDs na zamani. Amma daga cikin dabarun da ake amfani da su a Toshiba hard drives na uwar garken don rage jinkiri, S300 yana da aikin Dynamic Cache kawai.

Ba kamar sauran mahalarta gwajin ba, S300, ko da tare da tarin faranti bakwai, ba tare da helium ba kuma yana cikin madaidaicin akwati mai iska. Da alama cewa saboda wannan dalili ne cewa samfurin terabyte 10 yana da mafi girman ƙimar amfani da wutar lantarki a cikin taƙaitaccen tebur na ƙayyadaddun ƙayyadaddun mahalarta gwajin, kuma wannan siga, kodayake a cikin kanta yana da mahimmanci kawai ga masu gudanar da cibiyar bayanai, kai tsaye yana ƙayyade yawan zafin jiki. HDD. Za mu bincika ainihin ƙarfin wutar lantarki na S300 da kanmu, amma a yanzu za mu lura da wannan batu.

source: 3dnews.ru