Kumapeto kwa chaka chatha, mitundu yosiyanasiyana ya zida zathu idawonjezeredwa ndi mzere watsopano, . Ma drive awa adapangidwa kuti azigwira ntchito mumayendedwe owonera makanema mothandizidwa ndi luntha lochita kupanga. Lero tikufuna kukuwuzani mwatsatanetsatane za mtundu wake wapamwamba Seagate ST16000VE000 ndi 16 TB ya kukumbukira. HDD imodzi yokha yapadera yotere imatha kusunga zojambulira mwezi umodzi kuchokera pa makamera 15 omwe amajambulitsa kanema mu Full HD resolution pa liwiro la mafelemu 25 pa sekondi imodzi kuzungulira koloko.
Zaka khumi zapitazo, dera la makamera 15 a CCTV omwewo anali mulingo wa fakitale yayikulu kapena malo otetezeka a khothi, bungwe la boma kapena bungwe lina lofunika kwambiri. Masiku ano, makamera a 15 angakhale a bizinesi yaying'ono yomwe imayang'anira nyumba yosungiramo katundu ndi ofesi, malo ochitira masewera olimbitsa thupi kapena sitolo yaying'ono. Ndiko kuti, izi sizilinso zapamwamba, koma njira yojambulira makanema, gawo lothandizira chitetezo chakuthupi. Koma mavuto sanachepe: ma gigabytes a kanema wabwino ayenera kujambulidwa ndikusungidwa kwinakwake, ndipo ichi ndi chinthu chofunikira kwambiri pachitetezo - apo ayi, chifukwa chiyani makamera onsewa?
Maonekedwe
Ndizovuta kupeza china chatsopano pamawonekedwe a hard drive. Mawonekedwe a chipangizocho ndi 3.5 β, thupi limapangidwa ndi aluminiyamu, chivundikiro chapamwamba ndi chathyathyathya, chokhala ndi chomata chachikulu:
M'munsimu muli mofanana lathyathyathya pamwamba wakuda, kotala amene wotanganidwa ndi kunja bolodi chipangizo. Palinso mabowo 4 okwera.
Pali chowotcherera pozungulira ponseponse, kuwonetsetsa kuti kudzazidwa kwabwinoko - sikungatheke kulowa mkati mwanyumba. Ndipo palibe chifukwa chochitira, kupatula mwina chifukwa cha chidwi, kunyong'onyeka, kapena kupeza zikumbutso zodula (ngakhale pakuwoneka pali "zikondamoyo" zomwezo monga muma disks ena).
Pali mabowo atatu a zomangira mbali iliyonse - galimotoyo ikhoza kuikidwa mudengu lililonse, ngakhale lalifupi.
Pa pempho la ogwira ntchito (kuchokera ku ndemanga yapitayi) timapereka miyeso yolondola kwambiri:
Pamapeto akutsogolo pali chomata cholembera ndi nambala ya serial ya drive - kuti mutha kupeza mosavuta drive yomwe mukufuna mu stack ya NAS.
Gwiritsani ntchito
Ngati muli ndi kamera imodzi yokha yomwe ikupachikidwa kwinakwake mumsewu kunyumba, ndiye kuti ngakhale pamenepa muyenera kusunga kanema wojambulidwa kwinakwake (sitikuganizira za ntchito zamtambo pankhaniyi - kumene kusungirako mavidiyo ndi udindo wa eni ake).
Kuti timvetsetse sikelo, tiyeni tiwone tebulo, lomwe likuwonetsa kukula kwa ola la 1 la kujambula kanema ndi bitrate yokhazikika (poyerekeza kwambiri):
Video bitrate
Malo otanganidwa
96K (~vidiyo intercom)
42 MB
192K (~misonkhano yamavidiyo oponderezedwa)
84 MB
448K (~YouTube 240p)
112 MB
768K (~YouTube 360p)
225 MB
1024K (~YouTube 480p)
450 MB
1536K (~VideoCD)
675 MB
2048K (~YouTube 720p)
900 MB
4096K (~YouTube 720p@60fps)
1.8 GB
8192K (~YouTube 1080p@60fps)
3.6 GB
16384K (~HDTV)
7.2 GB
Zikuwonekeratu kuti pa kamera yomwe yatchulidwayo, pafupifupi galimoto iliyonse idzachita, ngakhale 500 GB - padzakhala malo okwanira pafupifupi sabata imodzi ya kujambula kosalekeza mu khalidwe labwino (ndipo ngati mujambula pogwiritsa ntchito sensa yoyenda, ngakhale yaitali) . Ndipo ngati mugwiritsa ntchito ngakhale losavuta SkyHawk litayamba (8 TB), izo kuphimba kufunika kusunga kanema kwa miyezi kapena zaka.
Koma zowonadi, popanga ma disc a SkyHawk, tinali ndi malingaliro osiyana pang'ono owonera makanema, pamlingo wokulirapo. Malo olowera, mashopu, malo opangira zinthu, mafakitale, mabungwe aboma - zonsezi (ndi zina zambiri) zomwe makamera ambiri kapena mazana ambiri amagwiritsidwa ntchito, okhala ndi makonda osiyanasiyana ndi matekinoloje. Chifukwa chake kanemayo kuchokera kwa iwo imayendetsedwa mosalekeza kudzera pazida zamaluso, zojambulidwa pamitundu yambiri yama disks ndikusungidwa modalirika kwa nthawi yayitali. Zonsezi ndizinthu zachilengedwe za SkyHawk.
Apa, m'malo mwa chizindikiro chodziwika bwino, ndi bwino kugwiritsa ntchito , yomwe ili ndi zoikamo zambiri zolowetsa ndi deta yolondola kwambiri. Ingowonetsani magawo omwe mukufuna (chiwerengero cha makamera / mtundu wojambulira kuchokera kwa iwo / kuchuluka kwa maola ojambulira patsiku ndi masiku osungira / codec) ndikupeza kukula kwa zomwe mwakhala:
Chifukwa chake, kusuntha ma slider, tikuwona kuti ngwazi yakuwunikanso kwamasiku ano (SkyHawk AI 16 TB) ndiyokwanira kusunga kanema kuchokera ku makamera a 15 kwa mwezi umodzi, yomwe imalemba usana wonse mumtundu wa FullHD ndi ma frequency a 25 mafelemu pamphindikati. (kuganiza cinema).
// (!)(!)(!) - zizindikiro zodziwikiratu za kuyika pawokha m'chiganizo chapitacho.
Makamera 15 ndi, mwachitsanzo, nyumba yosungiramo nyumba, yomwe ili ndi makamera a 7 atapachikidwa pazitseko zonse za 2 - malo otetezedwa kotheratu omwe amatha kudumphira kumalo osungirako mavidiyo kwa mwezi umodzi. SkyHawk AI idapangidwa kuti izigwira ntchito nthawi ndi nthawi pamakina owonera makanema, okhala ndi katundu wofikira ku 550 TB pachaka - izi ndizochulukirapo katatu kuposa ma disks omwe amawunikira makanema. Ndipo ngati pakufunika zolemetsa zambiri, timalimbikitsa kugwiritsa ntchito ma drive amtundu wa Seagate (mwachitsanzo, Exos, zomwe zinali pa blog yathu).
Zachidziwikire, makamera onsewa sangalumikizidwe mwachindunji ndi hard drive, koma kudzera pa chipangizo chamtengo wapatali cha NVR/XVR/***, chomwe chidzagwire ntchito ina yonse: konzekerani zosungirako ndikuzipeza, zosunga zobwezeretsera, ndondomeko. makanema (kuzindikira anthu, magalimoto, kuzindikira nkhope, ...), etc. Sizida zonse, ngakhale zochokera kuzinthu zodziwika bwino, zimathandizira ma drive akulu akulu, koma pali zambiri zoti musankhe: kuchokera kwa mtsogoleri wapadziko lonse Hikvision (mwachitsanzo, mu I-series, Super NVR ndi DeepInMind NVR mizere) mpaka odziwika kwambiri - Dahua, TVT kapena Uniview. Zida za HikVision zimatha kukhazikitsa mpaka ma drive 16 a SkyHawk - tangolingalirani kukhazikitsidwa uku ndi kuthekera kwake.
Hikvision SuperNVR ndi Hikvision DeepMind NVR
******
Tiyeni tibwerere ku disk yathu. Liwiro la spindle ndi 7200 rpm - tanthauzo lagolide, kupatsa chipangizocho magwiridwe antchito ofunikira pogwira ntchito ndi kanema. Komanso durability ndi otsika phokoso mlingo. Phokoso limatha kuwoneka mu mbale, koma zowerengera zimaperekedwa pa disk "patebulo" - kwenikweni, diskiyo idzabisika mu NAS / NVR kapena kuya kwa gawo la dongosolo, kumene sipadzakhala phokoso kapena kugwedezeka kudzasiyidwa kuchokera pamenepo.
Kuyeza liwiro kudapangidwa mu mtundu wotsimikizika wa HD Tune Pro utility 5.70. Zithunzi zonse zowonekera zimangodulidwa.
Kuwerenga kwa mzere - kuchokera ku 120 mpaka 266 MB/s ndi mtengo wapakati wa 209 MB/s, zofananira zolembera. Nthawi yofikira mwachisawawa ili mumtundu wa 11.6 - 13 ms powerenga ndi magawo khumi a ma milliseconds polemba - zotsatira zabwino, makamaka chifukwa cha cache yosiyana.
Kuwerenga:
Lembani:
Ma drive onse a Seagate SkyHawk AI ali ndi cache ya 256 MB - kukula kolemekezeka, koma pankhaniyi imagwira ntchito yapadera. Mtundu watsopano wa algorithm umalowetsedwa mu disk firmware ImagePerfect AI, yomwe imapangitsa kuti mavidiyo asakatulidwe, amaonetsetsa kuti palibe mafelemu ogwetsedwa muzojambula ndikuchepetsa zolakwika za data. Ma aligorivimu amatengera ukadaulo wa multitier caching (MTC, Multi-Tier Caching) ndipo imapereka:
- Kulandila kwa 64/XNUMX kwa makanema amakanema kuchokera ku makamera a XNUMX HD.
- Kuthamanga kwakukulu.
- Palibe mafelemu ogwetsedwa (chifukwa cha kukonza zolakwika ndi ma algorithms omanganso deta).
- Kukhulupirika kwazithunzi zapamwamba.
- Thandizo la ATA-8 Streaming command set (kutengerapo deta kumayika patsogolo nthawi pa kukhulupirika kwa deta, kumalola wolandirayo kuti apemphe kutumizidwa kwa deta pakapita nthawi), kukonzedwa kuti athe kukonza zotsatizana zazikulu zotsatizana za mafayilo amakanema.
Mutha kudziwa zambiri za momwe ukadaulo umagwirira ntchito , ndikuwona bwino muvidiyoyi:
Chikalata cholumikizidwa pamwambapa chimaperekanso tsatanetsatane wa momwe ukadaulo wa AcuTrac umagwirira ntchito kuti zitsimikizire kuti magwiridwe antchito ndi odalirika ngakhale m'malo ogwedezeka kwambiri.
Komanso m'bwalo muli SkyHawk Health Management (SHM) - mapulogalamu apadera opangidwa pamodzi ndi Hikvision (ya machitidwe ndi NVR OS 4.0) - S.M.A.R.T. pa steroids, kupitirira muyezo wamakampani. Ukadaulo umayang'anira ndikusanthula deta paumoyo ndi magwiridwe antchito a disk, zomwe zingathandize kupewa zovuta zomwe zingachitike munthawi yake.
Zolemba za Seagate SkyHawk AI
Mzere wa SkyHawk AI umaphatikizapo zida za 8, 10, 12, 14 ndi 16 TB. Kuphatikiza pa voliyumu, amasiyana kokha kulemera, kuchuluka kwa mbale, kugwiritsa ntchito mphamvu komanso kutsika pang'ono kosalekeza kwa data pamlingo wakunja (kwa zitsanzo zazing'ono).
β
β
Mfundo Zazikulu
Zosankha zambiriChitsanzo: Seagate SkyHawk AI
Kodi wopanga: Chithunzi cha ST16000VE000
Chaka chotuluka: 2019
YendetsaniKuchuluka kosungira: 16 TB
Mtundu: 3,5 "
Kukula kwa Cache Memory: 256 MB
Liwiro la spindle: 7200 rpm
Nambala ya mbale: 9
Mitu: 18 (zamitundu 16 ndi 14 TB)
KachitidwePanthawi yake: Masekondi 23 ndi ofanana; 30 masekondi - pazipita
Chiwongola dzanja chachikulu chotumizira deta: 250 MB/s
Nthawi yofikira: 4.16 ms
Nthawi yodikirira: 4.16 ms
mawonekedweChiyankhulo: SATA 6Gb/s (SATA-III)
Chiyankhulo Bandwidth: 6 Gbit / s
Thandizo la NCQ: pali
Zimango ndi kudalirikaMalire Olemetsa Ogwira Ntchito: 550 TB pachaka
Chiwerengero cha malo oyimikapo magalimoto: 300 000
MTBF: 1.5 miliyoni maola
AFR: 0.44% (kutengera 8760 POH)
Chitetezo cha kuzungulira kugwedezeka: inde, 12.5 rad/s2 mpaka 1500 Hz
Impact resistance pa ntchito: 50G yokhalitsa 2ms pamene ikuyenda, 200G yokhalitsa 2ms ikachoka
Zolakwika zowerengera / zowerengeka zosalongosoka: 1 cholakwika pa 1E15 (10 mpaka 15 mphamvu) bits
Mulingo waphokoso pakugwira ntchito: 28 dB
Mulingo waphokoso mumachitidwe osagwira ntchito: 18 dB
Kutentha kogwirira ntchito: 5 ~ 70 Β° C
Chitsimikizo Chochepa: Zaka 3
Phokoso ndi kugwiritsa ntchito mphamvuMulingo wa phokoso: mu mode standby - 1.8 bel (ambiri), 2.0 bel (pazipita); pofufuza - 2.6 bel (yodziwika), 2.8 bel (pazipita)
Avereji yogwiritsa ntchito mphamvu pakugwiritsa ntchito: 6.71 W - pafupifupi pakugwira ntchito
Avereji yogwiritsa ntchito mphamvu mumayendedwe oyimilira: 5.1 W
Kugwiritsa ntchito mphamvu poyambira: 21.6 W (kuyambira pano 1.8A mu 12V dera)
Werengani/lembani kugwiritsa ntchito mphamvu: 6.9 W
Avereji yogwiritsa ntchito mphamvu mumayendedwe Oyimilira ndi Kugona: 1.05 W
Makulidwe, kulemeraKutalika: 101.6 ΠΌΠΌ
ΠΠ»ΠΈΠ½Π°: 147 ΠΌΠΌ
Π’ΠΎΠ»ΡΠΈΠ½Π°: 26.1 ΠΌΠΌ
Kunenepa: 670 gr
mtengo
Pafupifupi mitengo panthawi yomwe positiyi idasindikizidwa:
16 TB - 37β½
14 TB - 31β½
12 TB - 26β½
10 TB - 21β½
8 TB - 16β½
******
Pangani zomangamanga zanu moyenera komanso motetezeka, izi zimakupulumutsani kumavuto ambiri!
Zikomo chifukwa cha chidwi chanu!
Source: www.habr.com