Kazhinji, dhisiki kana dhisiki arrays ane yakanyanya kuita mune imwechete host host yekubatanidza mamiriro. Mazhinji masisitimu anoshanda akavakirwa pane ega faira masisitimu, izvo zvinoreva kuti faira system inogona chete kuve yeayo anoshanda sisitimu. Nekuda kweizvozvo, ese ari maviri sisitimu yekushandisa uye application software inokwenenzvera data kuverenga uye kunyora yedhisiki yekuchengetedza system zvichienderana nehunhu hwayo. Iyi optimization ine chinangwa chekudzikisa nguva dzekutsvaga kwemuviri uye kuderedza disk mechanical mhinduro nguva. Izvo zvikumbiro zve data kubva kune imwe neimwe purogiramu yepurogiramu inobatwa nehurongwa hwekushanda, zvichiita kuti data yakagadziridzwa uye yakarongeka kuverenga nekunyora zvikumbiro zve disk kana disk array. Izvi zvinotungamira kune yakanakisa kuita kwegadziriro yekuchengetedza mune iyi setup.
Kune dhisiki arrays, kunyangwe imwe yekuwedzera RAID controller inowedzerwa pakati peiyo inoshanda sisitimu uye yega dhisiki madhiraivha, ikozvino RAID controller vanonyanya kutarisira uye nekuona disk kukanganisa kushivirira mashandiro. Ivo havaite chikumbiro chedata kubatanidza, kurongazve, kana optimization. RAID controllers akagadzirwa zvichibva pafungidziro yekuti zvikumbiro zve data zvinobva kune imwe chete host, yakatogadziridzwa uye yakarongedzwa neiyo inoshanda sisitimu. Iyo cache yemutongi inongopa yakananga uye computational buffering kugona, pasina queuing data kuitira optimization. Kana iyo cache inokurumidza kuzadzwa, kukurumidza kunobva kwadzikira kune chaiyo kumhanya kweiyo disk mashandiro.
Iyo RAID controller basa rekutanga kugadzira rimwe kana akawanda akakura-anoshivirira dhisiki kubva kune akawanda madhisiki uye kugadzirisa iyo yakazara data kuverenga nekunyora kumhanya uchishandisa caching ficha pane yega dhisiki. Iyo yekuverenga cache yeRAID controllers inosimudzira zvakanyanya dhisiki array kuverenga kwekuita kana iyo data imwechete ichiverengwa mukati menguva pfupi. Iyo chaiyo yakakura kuverenga nekunyora kumhanya kweiyo yese dhisiki array inogumira kukosha kwakaderera pakati peiyo host channel bandwidth, controller CPU's verification calculation uye system control kugona (RAID injini), disk chiteshi bandwidth, uye disk performance (iyo yakabatanidzwa chaiyo kuita kwe madhisiki ese). Pamusoro pezvo, kusawirirana pakati peiyo optimization hwaro hweiyo inoshanda sisitimu zvikumbiro zve data uye iyo RAID fomati, senge bhuroka saizi yeI/O zvikumbiro zvisingaenderane neiyo RAID segment size, inogona kukanganisa zvakanyanya dhisiki array.
Kuita Kusiyana kweChinyakare Disk Array Storage Systems mune Multiple Host Access
Mune akawanda maitirwo ekuwana mamiriro, kuita kwedhisiki arrays kunodzikira kana ichienzaniswa neiyo imwe host host yekubatanidza. Mudiki-diki dhisiki array ekuchengetedza masisitimu, ayo anowanzo ane imwechete kana yakarebesa peya yedhisiki array controllers uye nhamba shoma yemadhisiki akabatana, kuita kunokanganiswa neiyo isina kurongeka data inoyerera kubva kune akasiyana mauto. Izvi zvinotungamira pakuwedzera dhisiki nguva yekutsvaga, data segment musoro uye ruzivo rwemuswe, uye kupatsanurwa kwedata rekuverenga, kusanganisa, kuverengera kuverenga, uye kunyorazve maitiro. Nekuda kweizvozvo, mashandiro ekuchengetedza anodzikira sezvo mamwe mauto akabatana.
Mune yakakura-yakakura dhisiki array yekuchengetedza masisitimu, iyo yekuita degradation yakasiyana neiyo yediki-scale disk arrays. Aya mahombe-mahombe masisitimu anoshandisa chimiro chebhazi kana muchinjika-chinzvimbo chekuchinja kubatanidza akawanda ekuchengetera masisitimu (dhisiki arrays) uye anosanganisira hombe-cacheji cache uye host yekubatanidza modules (yakafanana nechannel hubs kana switch) kune mamwe mauto mukati mebhazi kana switching. chimiro. Kuita kwakanyanya kunoenderana necache mune transaction kugadzirisa maapplication asi ine kushomeka kushanda mumultimedia data mamiriro. Nepo iyo yemukati dhisiki array subsystems mune aya mahombe masisitimu anoshanda akazvimirira, imwechete inonzwisisika unit inongovakwa mukati meimwe disk subsystem. Nokudaro, kushanda kwechikwata chimwe chete chinonzwisisika chinoramba chiri pasi.
Mukupedzisa, madiki edhisiki arrays anosangana nekuderera kwekuita nekuda kwekusarongeka kwedhata kuyerera, nepo hombe-madhisiki arrays ane akawanda akazvimirira disk array subsystems anogona kutsigira mamwe mauto asi achiri kutarisana nemipimo yemultimedia data application. Kune rimwe divi, masisitimu ekuchengetera eNAS akavakirwa pane yechinyakare RAID tekinoroji uye kushandisa NFS neCIFS mapuroteni kugovera kuchengetedza nevashandisi vekunze kuburikidza neEthernet yekubatanidza inosangana nekuderera kwekuita kushoma munzvimbo dzakawanda dzekuwana. Masisitimu ekuchengetera eNAS anokwenenzvera kufambiswa kwedata uchishandisa akawanda akafanana TCP/IP kutamiswa, zvichibvumira kukurumidza kugovaniswa kunosvika makumi matanhatu MB/s mune imwe chete NAS yekuchengetedza system. Iko kushandiswa kweEthernet yekubatanidza kunoita kuti data rinyorwe zvakanyanyisa kudhisiki system mushure mekutonga uye kurongekazve neiyo inoshanda sisitimu kana data management software mune yakaonda server. Naizvozvo, iyo disk system pachayo haina kuona kwakakosha kuderera kwekuita, zvichiita kuti NAS chengetedzo ikwane kune maapplication anoda kugovana data.
Nguva yekutumira: Jul-17-2023
