Kuburitswa kweiyo yakagoverwa replicated block mudziyo DRBD 9.1.0 yakadhindwa, iyo inokutendera iwe kuita chimwe chinhu senge RAID-1 array yakaumbwa kubva kune akati wandei disks emichina yakasiyana yakabatana pamusoro petiweki (network mirroring). Iyo sisitimu yakagadzirirwa semodule yeLinux kernel uye yakagoverwa pasi peGPLv2 rezinesi.
Iyo drbd 9.1.0 bazi rinogona kushandiswa kutsiva pachena drbd 9.0.x uye rinonyatsoenderana padanho reprotocol, mafaera ekugadzirisa uye zvinoshandiswa. Shanduko idzi dzinodzika kusvika pakugadzirisa zvakare makiyiri ekuseta makiyi uye dzine chinangwa chekudzikisa makwikwi pakuseta makiyi mukodhi ine chekuita neI/O muDRBD. Shanduko iyi yakaita kuti zvikwanisike kuvandudza mashandiro muzvirongwa nehuwandu hukuru hweCPU uye neNVMe madhiraivha, nekubvisa bhodhoro rinokanganisa kuita basa kana nhamba huru yezvikumbiro zvakafanana zveI / O zvakagamuchirwa kubva kwakasiyana CPU cores. Zvikasadaro, iyo drbd 9.1.0 bazi yakafanana neiyo 9.0.28 kuburitswa.
Rangarira kuti DRBD inogona kushandiswa kusanganisa cluster node dhiraivha mune imwechete kukanganisa-inoshivirira kuchengetedza. Kune maapplication uye sisitimu, chengetedzo yakadaro inoita senge block mudziyo wakafanana kune ese masisitimu. Paunenge uchishandisa DRBD, ese emunharaunda dhisiki mashandiro anotumirwa kune dzimwe node uye anowiriraniswa nemadhisiki emimwe michina. Kana imwe node ikatadza, chengetedzo inongoramba ichishanda uchishandisa manodhi asara. Kana kuwanikwa kweiyo node yakakundikana kwadzoreredzwa, mamiriro ayo anozounzwa otomatiki kusvika parizvino.
Iyo cluster inoumba chengetedzo inogona kusanganisira akati wandei ma node ari ese ari maviri emunharaunda network uye akagovaniswa munzvimbo dzakasiyana dze data. Kuwiriranisa mune akadaro branched storages kunoitwa uchishandisa mesh network technologies (data inoyerera neketani kubva ku node kuenda ku node). Kudzokororwa kwemanodhi kunogona kuitwa zvese musynchronous uye asynchronous mode. Semuenzaniso, nzvimbo dzinogarwa munharaunda dzinogona kushandisa synchronous kudzokorora, uye kuendesa kunzvimbo dziri kure, asynchronous replication inogona kushandiswa nekuwedzera kumanikidza uye encryption yetraffic.
Source: opennet.ru