Ekupheleni konyaka ophelileyo, uluhlu lwemodeli yezixhobo zethu zazaliswa ngomgca omtsha, . Ezi drives zidalwe ukusebenza kwiinkqubo zokucupha ividiyo ngenkxaso yobukrelekrele bokwenziwa. Namhlanje sifuna ukukuxelela ngokubanzi malunga nemodeli yayo yeflegi Seagate ST16000VE000 kunye ne-16 TB yenkumbulo. Inye kuphela i-HDD ekhethekileyo enjalo enokugcina inyanga yokurekhoda kwiikhamera ezili-15 zokucupha ezirekhoda ividiyo kwisisombululo esigcweleyo seHD ngesantya seefreyimu ezingama-25 ngesekondi nganye.
Kwiminyaka nje elishumi eyadlulayo, isekethe yeekhamera ezili-15 zeCCTV yayilinqanaba lomzi-mveliso omkhulu okanye indawo ekhuselekileyo yenkundla, iarhente karhulumente okanye elinye iziko elibaluleke ngakumbi. Namhlanje, iikhamera ze-15 zinokuba zezeshishini elincinci elilawula indawo yokugcina impahla kunye neofisi, iziko lokuzilolonga okanye ivenkile encinci. Oko kukuthi, oku akuseyonto yokunethezeka, kodwa yindlela yokurekhoda ividiyo, inxalenye yokhuseleko lomzimba. Kodwa iingxaki azizange zibe ngaphantsi: i-gigabytes yevidiyo esemgangathweni kufuneka irekhodwe kwaye igcinwe kwindawo ethile, kwaye le nto yinto ephambili yokhuseleko - kungenjalo, kutheni zonke ezi khamera?
Kubonakala
Kunzima ukuza nento entsha ngokusisiseko kwinkangeleko yee-hard drives. Ifom yesixhobo yi-3.5", umzimba wenziwe nge-aluminiyam, isigqubuthelo esingaphezulu sisicaba, kunye nesincamathelisi esikhulu sokumakisha:
Apha ngezantsi kukho indawo emnyama elinganayo, ikota ehlala kwibhodi yangaphandle yesixhobo. Kukwakho nemingxuma emi-4 yokukhwela.
Kukho i-weld ecaleni kwe-perimeter yonke, eqinisekisa ukuqina okugqibeleleyo kokuzaliswa-akunakwenzeka ukungena ngaphakathi ekhaya. Kwaye akukho sizathu sokuba, ngaphandle kokufuna ukwazi, ukukruquka, okanye ukufumana izikhumbuzo ezibiza kakhulu (nangona ngokubonakalayo kukho "iipanekuku" ezifanayo nakwezinye iidiski).
Kukho imingxuma emithathu yezikrufu kwicala ngalinye - i-drive inokufakwa kuyo nayiphi na ibhasikidi, nokuba imfutshane.
Ngesicelo sabasebenzi (ukusuka kuphononongo lwangaphambili) sinikezela ngemilinganiselo echanekileyo:
Kwisiphelo sangaphambili kukho isincamathelisi sokumakisha kunye nenombolo yesiriyali ye-drive - ukuze ukwazi ukufumana lula idrayivu oyifunayo kwisitaki se-NAS.
Sebenzisa
Ukuba unekhamera enye kuphela exhonywe kwindawo ethile kwipaseji ekhaya, ngoko ke nakulo mzekelo kuya kufuneka ugcine ividiyo erekhodiweyo kwindawo ethile (asiyi kuqwalasela iinkonzo zefu kule meko - apho ukugcinwa kwevidiyo luxanduva lwabanini).
Ukuqonda isikali, makhe sijonge kwitheyibhile, ebonisa ubungakanani obuqikelelwayo beyure ye-1 yokurekhoda kwevidiyo nge-bitrate esisigxina (ngothelekiso olubi kakhulu):
Ibitrate yevidiyo
Isithuba esithathiweyo
96K (~video intercom)
I-42 MB
192K (~inkomfa yevidiyo ecinezelweyo)
I-84 MB
448K (~YouTube 240p)
I-112 MB
768K (~YouTube 360p)
I-225 MB
1024K (~YouTube 480p)
I-450 MB
1536K (~VideoCD)
I-675 MB
2048K (~YouTube 720p)
I-900 MB
4096K (~YouTube 720p@60fps)
1.8 GB
8192K (~YouTube 1080p@60fps)
3.6 GB
16384K (~HDTV)
7.2 GB
Kuyavela ukuba kwimeko yekhamera ekhankanyiweyo, phantse nayiphi na idrayivu iya kwenza, nokuba i-500 GB - kuya kubakho indawo eyaneleyo malunga neveki yokurekhoda okuqhubekayo kumgangatho omhle (kwaye ukuba urekhoda usebenzisa inzwa yentshukumo, nangaphezulu) . Kwaye ukuba usebenzisa eyona diski ye-SkyHawk elula (i-8 TB), iya kugubungela imfuno yokugcina ividiyo iinyanga okanye iminyaka.
Kodwa ewe, xa siphuhlisa iidiski ze-SkyHawk, sasicinga ngokucupha ividiyo eyahlukileyo, kwinqanaba elikhulu. Amangeno, iivenkile, amaziko okuvelisa, iifektri, ii-arhente zikarhulumente - zonke ezi (kunye nezinye ezininzi) iimeko apho kusetyenziswa iikhamera ezininzi okanye amakhulu enkcazo ephezulu, enezicwangciso ezahlukeneyo kunye nobuchwepheshe. Ke loo vidiyo isuka kubo isasazwa ngokuqhubekayo ngezixhobo zobuchwephesha, ezirekhodwa kuluhlu lweediski ezininzi kwaye zigcinwe ngokuthembekileyo ixesha elide. Konke oku kuyindalo ye-SkyHawk.
Apha, endaweni yophawu olungabonakaliyo, kungcono ukusebenzisa , enoseto lwegalelo elingaphezulu kunye nedatha yemveliso echanekileyo. Bonisa ngokulula iiparamitha ezifunwayo (inani lekhamera / umgangatho wokurekhoda ukusuka kubo / inani leeyure zokurekhoda ngosuku kunye neentsuku zokugcina / i-codec) kwaye ufumane ubungakanani bedatha ekhoyo:
Ke, ukuhambisa izilayidi, sifumanisa ukuba iqhawe lophononongo lwanamhlanje (i-SkyHawk AI 16 TB) yanele ukugcina ividiyo kwiikhamera ze-15 inyanga, eya kurekhoda ubusuku nemini kumgangatho we-FullHD kunye nokuphindaphinda kwezakhelo ezingama-25 ngomzuzwana. (cinga i-cinema).
// (!)(!)(!) - Iimpawu zesikhuzo sokubeka ngokuzimeleyo kwisivakalisi sangaphambili.
Iikhamera ze-15, umzekelo, isakhiwo sokuhlala, esineekhamera ezi-7 ezixhonywe kwindawo nganye yokungena kwe-2 - i-perimeter ekhuselwe ngokupheleleyo kunye nokukwazi ukuntywila kwindawo yokugcina ividiyo inyanga. I-SkyHawk AI yenzelwe ukusebenza kwe-clock-clock kwiinkqubo zokucupha iividiyo, kunye nomthwalo ofikelela kwi-550 TB ngonyaka - oku phantse kathathu ngaphezu kweediski eziqhelekileyo zokucupha ividiyo. Kwaye ukuba kukho imfuneko yomthwalo ophezulu wokusebenza, sincoma ukusebenzisa i-Seagate enterprise-level drives (umzekelo, i-Exos, ebikwibhlog yethu).
Ewe, zonke ezi khamera aziyi kudityaniswa ngokuthe ngqo kwi-hard drive, kodwa ngesixhobo esibiza kakhulu se-NVR/XVR/***, esiya kwenza wonke umsebenzi: cwangcisa i-archive kunye nokufikelela kuyo, i-backup, inkqubo. Imijelo yevidiyo (ukubonwa kwabantu, iimoto, ukubonwa kobuso, ...), njl. Ayizizo zonke izixhobo, nakwiimpawu ezaziwayo-kakuhle, zixhasa iidrive zomthamo omkhulu, kodwa sele kuninzi onokukhetha kuzo: ukusuka kwinkokeli yehlabathi uHikvision (umzekelo, kwi-I-series, Super NVR kunye nemigca ye-DeepInMind NVR) ukuya into encinci eyaziwayo - iDahua, iTVT okanye i-Uniview. Izixhobo zeHikVision zinokufaka ukuya kuthi ga kwi-16 ye-SkyHawk drives - khawufane ucinge oku kuseto kunye nobuchule bayo.
Hikvision SuperNVR kunye neHikvision DeepMind NVR
* * *
Masibuyele kwidiski yethu. Isantya se-spindle yi-7200 rpm - intsingiselo yegolide, ukubonelela ngesixhobo ngokusebenza okuyimfuneko ekusebenzeni ngevidiyo. Kwakunye nokuqina kunye nenqanaba lengxolo ephantsi. Amaxabiso engxolo angabonwa kwipleyiti, kodwa amaxabiso anikezelwe kwidiski "etafileni" - enyanisweni, idiski iya kufihlwa kwi-NAS / NVR okanye kubunzulu beyunithi yenkqubo, apho kungayi kubakho ngxolo okanye kushukuma okushiyekileyo kuyo.
Imilinganiselo yesantya yenziwe kwi-HD Tune Pro eqinisekisiweyo yenguqulo ye-5.70. Zonke ii-screenshots ziyacofa.
Ukufundwa komgca - ukusuka kwi-120 ukuya kwi-266 MB / s ngexabiso eliphakathi kwe-209 MB / s, amaxabiso afanayo okubhala. Ixesha lokufikelela ngokungacwangciswanga likuluhlu lwe-11.6 - 13 ms yokufunda kunye neshumi leemillisecond zokubhala - isiphumo esihle, ubukhulu becala ngenxa yecache eyahlukileyo.
Ukufunda:
Rekhoda:
Zonke ii-Seagate SkyHawk AI series drives zine-cache ye-256 MB - ubukhulu obuhloniphekileyo, kodwa kule meko idlala indima ekhethekileyo. Inguqulelo entsha ye-algorithm ifakwe kwi-disk firmware ImagePerfect AI, eyenza ukusasazwa kwevidiyo, iqinisekisa ukuba akukho freyimu ehlayo ekurekhodweni kunye nokunciphisa iimpazamo zedatha. I-algorithm isekelwe kwi-multi-tier caching technology (MTC, Multi-Tier Caching) kwaye ibonelela:
- Ukwamkelwa kwe-64/XNUMX yeevidiyo zevidiyo ezivela kwiikhamera ze-HD ze-XNUMX.
- Ukusasazwa kwesantya esiphezulu.
- Akukho zikhokelo eziwisiweyo (ngenxa yokulungiswa kweempazamo kunye ne-algorithms yokwakhiwa kwakhona kwedatha).
- Ukunyaniseka komfanekiso ophezulu.
- Inkxaso yomyalelo we-ATA-8 wokuHambisa iseti (ukudluliselwa kwedatha kubeka phambili ixesha phezu kokuthembeka kwedatha, kuvumela umphathi ukuba acele ukuhanjiswa kwedatha ngexesha elithile), elungiselelwe ukusetyenzwa kwedatha enkulu elandelelanayo eqhelekileyo yeefayile zevidiyo.
Unokufunda ngakumbi malunga nendlela itekhnoloji esebenza ngayo , kwaye uyibone ngokucacileyo kule vidiyo:
Uxwebhu oludityaniswe ngasentla lukwabonelela ngeenkcukacha malunga nendlela iteknoloji ye-AcuTrac esebenza ngayo ukuqinisekisa ukusebenza okuhambelanayo kunye nokuthembeka nakwiindawo eziphezulu zokungcangcazela.
Kwakhona kwibhodi yi-SkyHawk Health Management (SHM) - isofthiwe yesiko ephuhliswe ngokubambisana ne-Hikvision (kwiinkqubo ezine-NVR OS 4.0) - i-SMART kwi-steroids, ehamba ngaphaya komgangatho woshishino. Itekhnoloji ibeka iliso kwaye ihlalutye idatha kwimpilo kunye nokusebenza kwediski, enokunceda ukukhusela iingxaki ezinokwenzeka ngexesha.
Seagate SkyHawk AI Iinkcukacha
Uluhlu lwe-SkyHawk AI lubandakanya izixhobo ezinomthamo we-8, 10, 12, 14 kunye ne-16 TB. Ukongeza kumthamo, ziyahluka kuphela kubunzima, inani leepleyiti, ukusetyenziswa kwamandla kunye nomgangatho osezantsi kancinci wogqithiso lwedatha kunye nedamitha yangaphandle (kwimodeli emincinci).
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Iimpawu eziphambili
Izinto eziqhelekileyoUmzekelo: Seagate SkyHawk AI
Ikhowudi yomvelisi: ST16000VE000
Unyaka wokukhutshwa: 2019
QhubaUmthamo wokugcina: 16 Isifo sephepha
Ifomathi: 3,5 "
Ubungakanani bememori yeCache: I-256 MB
Isantya somjikelo: 7200 rpm
Inani lamacwecwe: 9
Iintloko: I-18 (yemifuziselo ye-16 kunye ne-14 ye-TB)
IntsebenzoNgexesha: 23 imizuzwana eqhelekileyo; 30 imizuzwana - ubuninzi
Elona zinga logqithiso lwedatha: 250 MB/s
Ixesha eliphakathi lokufikelela: I-4.16 ms
Ixesha eliphakathi lokulinda: I-4.16 ms
ujonganoUjongano: SATA 6Gb/s (SATA-III)
Ububanzi Bonxibelelwano: 6 Gbit/s
Inkxaso yeNCQ: kukho
Oomatshini kunye nokuthembekaUbungakanani bomthwalo osebenzayo: 550 TB ngonyaka
Inani lemijikelo yokubeka-indawo yokupaka: 300 000
MTBF: 1.5 million iiyure
AFR: I-0.44% (esekelwe kwi-8760 POH)
Ukhuseleko lokungcangcazela: ewe, 12.5 rad/s2 ukuya kuthi ga kwi-1500 Hz
Ukuchasana nempembelelo ngexesha lokusebenza: I-50G ihlala i-2ms xa isebenza, i-200G ihlala i-2ms xa ivaliwe
Iimpazamo zokufunda ezingafanelekanga/amasuntswana okufunda: 1 impazamo nganye 1E15 (10 ukuya kumandla we-15) bits
Inqanaba lengxolo ngexesha lokusebenza: 28 dB
Inqanaba lengxolo kwimowudi yokungenzi nto: 18 dB
Lobushushu Working: 5 ~ 70 Β° C
Iwaranti enyiniweyo: 3 iminyaka
Ingxolo kunye nokusetyenziswa kwamandlaInqanaba lengxolo: kwimodi yokulinda - 1.8 bel (eqhelekileyo), 2.0 bel (ubuninzi); xa ukhangela - 2.6 bel (eqhelekileyo), 2.8 bel (ubuninzi)
I-avareji yokusetyenziswa kwamandla kwindlela yokusebenza: 6.71 W - umyinge ngexesha lokusebenza
Umndilili wokusetyenziswa kwamandla kwimowudi yokulinda: 5.1 W
Ukusetyenziswa kwamandla ekuqaleni: 21.6 W (ukuqala ngoku 1.8A kwisekethe ye-12V)
Funda/ubhale ukusetyenziswa kwamandla: 6.9 W
Umndilili wokusetyenziswa kwamandla kwiindlela zokulinda kunye nokuLala: 1.05 W
Imilinganiselo, ubunzimaUbubanzi: 101.6 ΠΌΠΌ
Ixesha: 147 ΠΌΠΌ
Π’ΠΎΠ»ΡΠΈΠ½Π°: 26.1 ΠΌΠΌ
Ubunzima: I-670 gr
iindleko
Amaxabiso aqikelelwayo ngexesha lokupapashwa kweposi:
16 TB β 37β½
14 TB β 31β½
12 TB β 26β½
10 TB β 21β½
8 TB β 16β½
* * *
Yakha isiseko sakho ngokufanelekileyo nangokukhuselekileyo, oku kukusindisa kwiingxaki ezininzi!
Π‘ΠΏΠ°ΡΠΈalu
umthombo: www.habr.com