Uma ibhizinisi lisebenza ngedatha enkulu, iyunithi yokugcina ayibi idiski eyodwa, kodwa isethi yamadiski, inhlanganisela yawo, isamba sevolumu edingekayo. Futhi kufanele iphathwe njengenhlangano ebalulekile. I-logic yokukala isitoreji ngama-block-block aggregates achazwe kahle kusetshenziswa isibonelo se-JBOD - kokubili njengefomethi yokuhlanganisa amadiski kanye nedivayisi ephathekayo.
Ungakwazi ukukala ingqalasizinda yediski hhayi kuphela "phezulu" ngokukhipha ama-JBOD, kodwa futhi "ngaphakathi" usebenzisa izimo ezihlukahlukene zokugcwalisa. Ake sibheke ukuthi lokhu kusebenza kanjani kusetshenziswa i-Western Digital Ultastar Data60 njengesibonelo.
Mayelana nokugcwalisa
I-JBOD iyikilasi elihlukile lemishini yeseva yokubeka amadiski aminyene, anokufinyelela kuwo iziteshi eziningi ngabaphathi babaphathi nge-SAS. Abakhiqizi be-JBOD bawathengisa njengamadiski angenalutho, ingxenye noma avaleleke ngokuphelele - kuye ngokuthi ukhetha kanjani. Kancane kancane ukugcwalisa isitoreji ngamadiski njengoba isidingo sikhula sikuvumela ukuthi usakaze izindleko ezinkulu ngokuhamba kwesikhathi. Kunenzuzo ukuthenga i-JBOD ngawo wonke amadiski angama-60 avela ku-Western Digital - ishibhile kakhulu. Kepha futhi ungathatha egcwaliswe ngokwengxenye: ukucushwa okuncane kwe-Ultastar Data60 ngamadrayivu angama-24.
Kungani 24? Impendulo ilula: i-aerodynamics. βIzinga legolideβ JBOD 4U / 60 x 3.5β ligxile embonini ngezizathu ezingokoqobo - usayizi wedivayisi ozwakalayo, ukufinyelela, ukupholisa okuhle. Amadiski angu-60 ahlelwe njengemigqa emi-5 yama-HDD angu-12 ngamunye. Imigqa egcwaliswe ngokwengxenye noma ukushoda kwamadiski ku-JBOD (ngokwesibonelo, umugqa owodwa nje) kuholela ekushabalaleni kokushisa okungekuhle noma ngisho nokuhlehla komoya esiteshini esimaphakathi - isici sokuklama se-Ultastar Data60, isici sayo esihlukile.
Kuma-JBOD ayo, i-WD isebenzisa ubuchwepheshe bokuvuthela amadiski e-ArcticFlow, obumodelwe ngokucophelela futhi baqinisekiswa. Yonke into yama-HDD - ngokusebenza kwawo, ukusinda, nokuphepha kwedatha.
Ingqikithi ye-ArcticFlow yehlela ekwakhekeni kokugeleza komoya okubili okuzimele kusetshenziswa abalandeli: eyangaphambili ipholisa imigqa yangaphambili yamadrayivu, futhi umoya ongena ngephaseji lomoya wangaphakathi ujule ekesi usetshenziselwa ukushaya amadrayivu ku-JBOD engemuva. indawo.
Kuyacaca ukuthi kungani ukuze i-ArcticFlow isebenze kahle kudingekile ukuthi kuqinisekiswe ukuthi amagumbi angenalutho agcwalisiwe. Okungenani ekucushweni kwamadrayivu angama-24, ilungiselelo ku-Ultastar Data60 kufanele liqale endaweni engemuva.
Ekucushweni kwamadrayivu angu-12, ngaphandle kokubhekana nokumelana okungadalwa ukuhlelwa kwemigqa emibili, ukugeleza komoya okushiya i-JBOD kugeleza kubuyele endaweni engaphambili futhi kusistimu yokupholisa.
Kukhona indlela yokuthuthukisa isimo - okwengeziwe kuso kamuva.
Mayelana ne-hybridity
Kuhle ukwamukela ngokushesha njenge-axiom ukuthi inhloso ye-JBOD iwukugcina idatha esikalini. Isiphetho esisuka kulokhu sithi: siyisebenzisela isibalo sabantu bamadivayisi afanayo. Ngenhloso yokuthi ekugcineni ufinyelele umthamo wokugcina umklamo, ugcwalise wonke amagumbi.
Kuthiwani ngama-SSD? Isixazululo esingcono kakhulu (futhi esilungile) siwukwakha isitoreji esiseceleni esisebenza kahle kakhulu ku-JBOF. Izimo eziqinile zikhululekile lapho. Ngesikhathi esifanayo, i-Ultastar Data60 ivumela ukufakwa kwama-flash drive. Ngaphambi kokuba uqale i-JBOD hybridization, kufanele uqale ulinganise izinzuzo - khetha i-SSD ohlwini lwezinto ezihambisanayo (ngokungafani ne-HDD, isimo esinokusekelwa kwe-SSD sigcwele ama-nuances). Kuzodingeka futhi usebenzise imali ekufakeni amadrayivu angu-2,5-intshi kuma-bays angu-3,5-intshi.
Imishini ye-SSD eyodwa kufanele ibekwe endaweni ye-JBOD engemuva, ivale amagumbi angasetshenzisiwe ngamapulaki akhethekile - I-Drive Blanks. Lokhu kuvimbela ukugeleza okukhululekile komoya opholile, njengoba kushiwo ngenhla, ukuwuvimbela ukuba ungaphinde ujikeleze.
Isilinganiso esiphezulu sama-SSD angu-24 singafakwa ku-Ultastar Data60 chassis. Kunoma yikuphi, lezi kufanele kube imigqa yokugcina yendawo engemuva.
Kungani 24? Ukukhishwa kokushisa kwamadrayivu e-solid-state kuphakeme kunezici ezifanayo zama-HDD, ngenxa yalesi sizathu, ukuhlelwa kwemigqa eminingi yamadiski anezinhlobo ezahlukene zemidiya ngeke kushaywe ngempumelelo yi-ArcticFlow. Futhi ukuchithwa kokushisa kuzoba yingozi yokusebenza kwe-JBOD.
Kuyaqapheleka lapha ukuthi ngokusebenzisa i-Drive Blanks unganciphisa umphumela wokujikeleza komoya oshisayo. Isakhiwo se-JBOD esinama-HDD angu-12 sizophola kangcono uma izingxenye ezingenalutho zimbozwe ngamapulaki. Umkhiqizi akazange asho lutho mayelana nobuqili obunjalo, kodwa ilungelo lokuhlola lihlala lingelethu. Ngendlela, i-WD ayikuvimbeli ukugcwaliswa kwe-12-disc, nakuba ingakuncomi.
Iziphetho ezisebenzayo
Ngisho nokujwayelana okukha phezulu ne-aerodynamics ye-JBOD kunikeza umbono wokuthi ekusebenzeni okuthembekile kwesitoreji kungcono ukuncika kokuhlangenwe nakho nezincomo zonjiniyela. Izinqubo ezenzeka ngaphakathi kwekheji lediski zidinga ucwaningo oluyisisekelo. Ukudebeselela ulwazi olutholiwe kugcwele izinkinga, ezizwela ngayo yonke imiqondo yokugcinwa kwamavolumu amakhulu ama-terabyte.
Kuyaziwa ukuthi imithetho yezempi ibhalwa kanjani. Kwenzeka okufanayo ngesakhiwo se-JBOD. Uma izixazululo zesikhathi esidlule zamuva zihlushwa isakhiwo lapho ingxenye yesixhumi esibonakalayo itholakala endaweni "yokukhipha", ishaywa umoya oshisayo, namuhla i-Ultastar Data60 ayinayo le nkinga. Konke okunye okutholwe yimiklamo kumane kuyisimangaliso sezobuchwepheshe. Yile ndlela okufanele iphathwe ngayo.
Source: www.habr.com