Amadivayisi Esitoreji, Ama-Disk Arrays kanye Nezinhlelo Zokugcina, SAN, NAS

 

IDIVAYISI YOKUGCINA noma eyaziwa nangokuthi STORAGE MEDIUM yinoma iyiphi i-hardware yekhompuyutha esetshenziselwa ukugcina, ukuthuthwa kanye nokukhipha amafayela wedatha nezinto. Amadivayisi esitoreji angabamba futhi agcine ulwazi okwesikhashana futhi unomphela. Zingaba ngaphakathi noma ngaphandle kukhompuyutha, kuseva noma kunoma iyiphi idivayisi yekhompyutha efanayo.

 

 

Ukugxila kwethu ku-DISK ARRAY okuyingxenye yehadiwe equkethe iqembu elikhulu lama-hard disk drives (HDDs). Ama-disk arraray angase aqukathe amathreyi e-disk drive amaningana futhi abe nezakhiwo ezithuthukisa isivinini kanye nokwandisa ukuvikeleka kwedatha. Isilawuli sesitoreji sisebenzisa isistimu, ehlanganisa umsebenzi ngaphakathi kweyunithi. Ama-disk array angumgogodla wezindawo zesimanje zokugcina zokuxhumana. Uhlu lwediski luwuHLELO LOKUGCINA LOKUGCINA oluqukethe amadrayivu ediski amaningi futhi luhlukaniswa nendawo evalekile yediski, ngokuthi amalungu afanayo anenkumbulo yenqolobane nokusebenza okuthuthukisiwe okufana ne-RAID kanye nokwenza izinto ezibonakalayo. I-RAID imele i-Redundant Array of Inexpensive (noma Independent) Disks futhi isebenzisa amadrayivu amabili noma ngaphezulu ukuze kuthuthukiswe ukusebenza nokubekezelela amaphutha. I-RAID inika amandla ukugcinwa kwedatha ezindaweni eziningi ukuze kuvikelwe idatha ekonakaleni futhi inikeze abasebenzisi ngokushesha.

 

 

Izingxenye zohlelo olujwayelekile lwediski zifaka:

 

Izilawuli ze-Disk array

 

Izinkumbulo zenqolobane

 

Izivalo zediski

 

Izimpahla zamandla

 

 

Ngokuvamile ama-disk array ahlinzeka ngokutholakala okukhuphukile, ukuqina kanye nokugcinwa ngokusetshenziswa kwezingxenye ezengeziwe, ezingasasebenzi njengezilawuli, izinsiza zamandla, amafeni, njll., ngezinga lokuthi wonke amaphuzu awodwa okwehluleka akhishwe ekwakhiweni. Lezi zingxenye isikhathi esiningi ziyashintshashintsha.

 

 

Ngokuvamile, ama-disk array ahlukaniswe ngezigaba:

 

 

I-NETWORK ATTACHED STORAGE (NAS) ARRAYS : I-NAS iyithuluzi elizinikele lokugcina ifayela elihlinzeka abasebenzisi benethiwekhi yendawo (i-LAN) ngesitoreji sediski esimaphakathi, esihlanganisiwe ngoxhumo olujwayelekile lwe-Ethernet. Idivayisi ngayinye ye-NAS ixhunywe ku-LAN njengedivayisi yenethiwekhi ezimele futhi yabelwe ikheli le-IP. Inzuzo yayo eyinhloko ukuthi isitoreji senethiwekhi asikhawulelwe kumthamo wokugcina wedivayisi yekhompyutha noma inombolo yamadiski kuseva yendawo. Imikhiqizo ye-NAS ngokuvamile ingabamba amadiski anele ukusekela i-RAID, futhi izinto zikagesi eziningi ze-NAS zinganamathiselwa kunethiwekhi ukuze kunwetshwe isitoreji.

 

 

IZILUNGISELELO ZENEWEBHEKI YENDAWO YOKUGCINA (SAN) : Aqukethe uhlu olulodwa noma ngaphezulu lwediski elisebenza njengendawo yokugcina idatha ehanjiswa ngaphandle nangaphakathi kwe-SAN. Amalungu afanayo esitoreji axhumeka kungqimba lwendwangu ngamakhebuli agijima esuka kumadivayisi akusendlalelo sendwangu ukuya kuma-GBIC kuzimbobo ohlwini. Kukhona ikakhulukazi izinhlobo ezimbili zenethiwekhi yendawo yokugcina, okuyimodular ama-SAN array kanye ne-monolithic SAN arrays. Zombili zisebenzisa imemori yekhompyutha eyakhelwe ngaphakathi ukusheshisa kanye nokufinyelela kwenqolobane kumadrayivu ediski ahamba kancane. Lezi zinhlobo ezimbili zisebenzisa inqolobane yememori ngokuhlukile. Amalungu afanayo e-Monolithic ngokuvamile anenkumbulo yenqolobane eyengeziwe uma kuqhathaniswa namalungu afanayo e-modular.

 

 

1.) I-MODULAR YE-SAN ARRAYS : Lezi zinokuxhunywa kwezimbobo ezimbalwa, zigcina idatha encane futhi zixhumeke kumaseva ambalwa uma kuqhathaniswa nezinhlaka ezifanayo ze-SAN ze-monolithic. Benza ukuthi umsebenzisi ofana nezinkampani ezincane akwazi ukuqala kancane ngamadrayivu ediski ambalwa futhi andise inombolo njengoba izidingo zokulondoloza zikhula. Anamashalofu okubamba amadrayivu ediski. Uma ixhunywe kumaseva ambalwa kuphela, ama-modular SAN array angashesha kakhulu futhi anikeze izinkampani ukuguquguquka. Ama-Modular array e-SAN angena kumarack ajwayelekile angu-19”. Ngokuvamile zisebenzisa izilawuli ezimbili ezinememori yenqolobane ehlukene endaweni ngayinye futhi zifanekisela inqolobane phakathi kwezilawuli ukuvimbela ukulahleka kwedatha.

 

 

2.) I-MONOLITHIC SAN ARRAYS : Lawa amaqoqo amakhulu amadrayivu wediski kuzikhungo zedatha. Angagcina idatha eyengeziwe kakhulu uma kuqhathaniswa nezinhlaka ezifanayo ze-SAN futhi ngokuvamile axhume kuma-mainframes. Amalungu afanayo e-Monolithic SAN anezilawuli eziningi ezingabelana ngokufinyelela okuqondile kunqolobane yememori yomhlaba wonke esheshayo. Amalungu afanayo e-Monolithic ngokuvamile anezimbobo ezibonakalayo ezengeziwe ukuze axhumeke kumanethiwekhi wendawo yokugcina. Ngakho amaseva engeziwe angasebenzisa amalungu afanayo. Ngokujwayelekile ama-monolithic array abaluleke kakhulu futhi anokwesekwa okuphakeme okwakhelwe ngaphakathi nokuthembeka.

 

 

IZINDABA ZOKUGCINA IZINTO : Kumodeli yesevisi yesitoreji esisetshenziswayo, umhlinzeki unikeza umthamo wesitoreji kubantu ngabanye noma izinhlangano ngesisekelo sokukhokha ngakunye. Le modeli yesevisi ibizwa nangokuthi isitoreji lapho kudingeka khona. Lokhu kusiza ukusetshenziswa kahle kwezinsiza futhi kunciphisa izindleko. Lokhu kungabiza kakhulu ezinkampanini ngokususa isidingo sokuthenga, ukuphatha kanye nokugcina ingqalasizinda ehlangabezana nezidingo eziphezulu ezingaba ngaphezu kwemikhawulo edingekayo yamandla.

 

 

UKUQINISEKISA KWESITOREJI : Lokhu kusebenzisa ukwenziwa kwezinto ezibonakalayo ukuze kunikwe amandla ukusebenza okungcono nezici ezithuthuke kakhulu ezinhlelweni zokugcinwa kwedatha yekhompyutha. I-Virtualization yesitoreji ukuhlanganisa okusobala kwedatha kusuka kuhlobo olufanayo noma ezinhlotsheni ezahlukahlukene zamadivayisi wesitoreji kulokho okubonakala kuyidivayisi eyodwa ephethwe kusuka kukhonsoli emaphakathi. Isiza abaphathi besitoreji ukuthi benze ikhophi yasenqolobaneni, bagcine kungobo yomlando kanye nokuthola kalula kalula nangokushesha ngokunqoba inkimbinkimbi yenethiwekhi yendawo yokugcina (i-SAN). Lokhu kungafezwa ngokusebenzisa i-virtualization ngezinhlelo zesofthiwe noma ngokusebenzisa i-hardware ne-software hybrid appliances.

​

BUYELA EMUVA kokuthi  PRODUCTS IKHASI