Pamene bizinesi ikugwira ntchito ndi deta yaikulu, malo osungiramo sakhala disk imodzi, koma ma disks, kuphatikiza kwawo, chiwerengero cha voliyumu yofunikira. Ndipo iyenera kuyendetsedwa ngati chinthu chofunikira. Lingaliro la kusungirako makulitsidwe ndi ma block-block aggregates akufotokozedwa bwino pogwiritsa ntchito chitsanzo cha JBOD - monga mawonekedwe ophatikizira ma disks komanso ngati chipangizo chakuthupi.
Mutha kukulitsa ma disks osati "m'mwamba" potsitsa ma JBOD, komanso "mkati" pogwiritsa ntchito zochitika zosiyanasiyana zodzaza. Tiyeni tiwone momwe izi zimagwirira ntchito pogwiritsa ntchito Western Digital Ultastar Data60 mwachitsanzo.
Za kudzaza
JBOD ndi gulu lapadera la zida za seva zoyika ma disks, okhala ndi njira zambiri zowafikira ndi oyang'anira kudzera ku SAS. Opanga ma JBOD amawagulitsa ngati ma disks opanda kanthu, ochepa kapena otsekedwa kwathunthu - kutengera momwe mumasankhira. Pang'onopang'ono kudzaza zosungirako ndi ma disks momwe kufunikira kukukula kumakupatsani mwayi wofalitsa ndalama zazikulu pakapita nthawi. Ndizopindulitsa kugula JBOD ndi ma disks onse 60 kuchokera ku Western Digital - ndizotsika mtengo kwambiri. Koma mutha kutenganso yodzazidwa pang'ono: kasinthidwe kakang'ono ka Ultastar Data60 ndi ma drive 24.
Chifukwa 24? Yankho ndi losavuta: aerodynamics. "Gold standard" JBOD 4U / 60 x 3.5 "yakhazikika mumakampani pazifukwa zenizeni - kukula kwa chipangizocho, mwayi, kuziziritsa bwino. Ma disks 60 amakonzedwa ngati mizere 5 ya 12 HDD iliyonse. Mizere yodzaza pang'ono kapena kuchepa kwa ma disks mu JBOD (mwachitsanzo, mzere umodzi wokha) kumayambitsa kutentha kosakwanira kapena kubweza mpweya wapakati panjira yapakati - mawonekedwe a Ultastar Data60, mawonekedwe ake apadera.
M'ma JBOD ake, WD imagwiritsa ntchito ukadaulo waku ArcticFlow disc kuwomba, wopangidwa mosamala ndikutsimikiziridwa. Chilichonse cha ma HDD - pakuchita kwawo, kupulumuka, ndi chitetezo cha data.
Chofunika kwambiri cha ArcticFlow chimatsikira pakupanga maulendo awiri odziyimira pawokha pogwiritsa ntchito mafani: yakutsogolo imaziziritsa mizere yakutsogolo ya ma drive, ndipo mpweya womwe umalowa munjira yamkati mkati mwamilanduyo umagwiritsidwa ntchito kuwombera ma drive kumbuyo kwa JBOD. zoni.
Zikuwonekeratu chifukwa chake kuti ArcticFlow igwire bwino ntchito ndikofunikira kuwonetsetsa kuti zipinda zopanda kanthu zadzazidwa. Pakasinthidwe kakang'ono ka ma drive 24, makonzedwe a Ultastar Data60 akuyenera kuyamba kuchokera kumadera akumbuyo.
Pamakonzedwe a 12-drive, popanda kukumana ndi kutsutsa komwe kumapanga mizere iwiri, mpweya wotuluka mu JBOD umayenda mmbuyo kudera lakutsogolo ndi kulowa mu dongosolo lozizira.
Pali njira yothetsera vutoli - zambiri pambuyo pake.
Za hybridity
Ndikoyenera kuvomereza nthawi yomweyo ngati axiom kuti cholinga cha JBOD ndikusungirako deta. Mapeto ake ndi awa: timagwiritsa ntchito pagulu la zida zofananira. Ndi cholinga choti pamapeto pake mufikire kuchuluka kosungirako, ndikudzaza zipinda zonse.
Nanga bwanji ma SSD? Yankho labwino kwambiri (komanso lolondola) ndikumanga malo osungiramo magwiridwe antchito apamwamba kwambiri pa JBOF. Malo olimba amakhala omasuka pamenepo. Nthawi yomweyo, Ultastar Data60 imalola kukhazikitsa ma drive a flash. Musanayambe kusakanizidwa kwa JBOD, muyenera kuyesa kaye zabwino zake - sankhani SSD pamndandanda wazomwe zimagwirizana (mosiyana ndi HDD, momwe zinthu zilili ndi chithandizo cha SSD ndizodzaza ndi ma nuances). Muyeneranso kugwiritsa ntchito ndalama pokweza ma drive 2,5-inchi m'malo a 3,5-inchi.
Zida za SSD imodzi ziyenera kukhala kumbuyo kwa JBOD zone, kutseka zipinda zosagwiritsidwa ntchito ndi mapulagi apadera - Drive Blanks. Izi zimatchinga kuyenda kwaulele kwa mpweya woziziritsa, monga tanenera pamwambapa, kuti usabwererenso.
Ma SSD opitilira 24 amatha kukhazikitsidwa mu chassis ya Ultastar Data60. Mulimonsemo, izi ziyenera kukhala mizere yomaliza ya zone yakumbuyo.
Chifukwa 24? Kutenthedwa kwa kutentha kwa ma drive olimba ndi apamwamba kuposa mawonekedwe ofanana a HDDs, pachifukwa ichi, masanjidwe amitundu yambiri a disks okhala ndi mitundu yosiyanasiyana ya media sangawombedwe bwino ndi ArcticFlow. Ndipo kutentha kwa kutentha kudzakhala chiwopsezo cha ntchito ya JBOD.
Ndikoyenera kudziwa apa kuti pogwiritsa ntchito Drive Blanks mutha kuchepetsa kubwereza kwa mpweya wotentha. Mapangidwe a JBOD okhala ndi ma HDD 12 azizizira bwino ngati zipinda zopanda kanthu zitakutidwa ndi mapulagi. Wopangayo sananene chilichonse chokhudza chinyengo choterocho, koma ufulu woyesera ndi wathu nthawi zonse. Mwa njira, WD sikuletsa kudzazidwa kwa 12-disk, ngakhale sikukulangiza.
Malingaliro othandiza
Ngakhale kungodziwa pang'ono ndi aerodynamics a JBOD kumapereka lingaliro kuti ntchito yodalirika yosungirako ndi bwino kudalira zochitika ndi malingaliro a wopanga. Njira zomwe zimachitika mkati mwa khola la disk zimafunikira kafukufuku wofunikira. Kunyalanyaza chidziwitso chopezedwa kumadzaza ndi zovuta, zomwe zimakhala zovuta m'lingaliro lililonse posungira mazana a ma terabytes.
Zimadziwika momwe malamulo ankhondo amalembedwera. Chinachake chofanana chimachitika ndi zomangamanga za JBOD. Ngati mayankho aposachedwa adakumana ndi makonzedwe omwe gawo la mawonekedwe lidali mugawo la "exhaust", lowombedwa ndi mpweya wotentha, lero Ultastar Data60 ilibe vuto ili. Zinthu zina zonse zopezeka pamapangidwe ndi chozizwitsa chaukadaulo. Umu ndi momwe ziyenera kuchitidwira.
Source: www.habr.com