Mō te uho Linux Kua whakaarohia he huinga papaki hei whakatinana i te pūrere poraka tāruarua tohatoha DRBD 9, e āhei ai te waihanga i tētahi rarangi RAID-1 i hangaia mai i ngā puku whakaata-whatunga e hono ana ki ngā pūnaha rerekē. Ka whakamatautauria tuatahitia te taraiwa i te peka linux-next, ā, ka whakaotihia mō te whakaurunga kernel. Linux 7.2.
Kua whakaurua te whakatinanatanga tawhito o te DRBD ki roto i te kernel mai i te putanga 2.6.33, i tukuna i ngā tau 16 ki muri. Ko te waehere kernel e ahu mai ana i te peka DRBD 8, he rerekē rawa atu i te peka DRBD 9, i tukuna i te tau 2015, ā, kāore e hototahi i te taumata kawa. Nō reira, i whakawhanakehia te DRBD 9 hei kōwae waho motuhake, kāore i te hono ki te kōwae kernel matua. I puritia motuhaketia te whakatinanatanga DRBD o te kernel, ā, kei muri i te turanga waehere DRBD o nāianei mō te 10-15 tau. Kua hangaia ngā papaki kua whakaarohia hei whakakī i tēnei āputa.
Mā te DRBD ka taea te whakakotahi i ngā puku pūnga tautau ki roto i tētahi wae rokiroki kotahi, e ātete ana ki ngā hapa. Ki ngā tono me te pūnaha, ka puta tēnei wae rokiroki hei taputapu poraka kotahi, ōrite. Mā te DRBD, ka tukuna ngā mahi kōpae ā-rohe katoa ki ētahi atu pūnga, ā, ka tukutahitia ki ngā kōpae o ētahi atu mīhini. Ki te rahua tētahi pūnga, ka haere tonu te wae rokiroki ki te mahi mā te whakamahi i ngā pūnga e toe ana. Ina wātea anō te pūnga rahua, ka whakahokia aunoa tōna āhua ki tōna āhua o nāianei.
Ka taea e te tautau e hanga ana i te rokiroki te whakauru atu ki te 32 ngā pona kei roto i te whatunga ā-rohe me ngā wāhi marara ā-whenua. pokapū raraungaKa mahia te tukutahitanga i roto i ēnei pūnaha rokiroki tohatoha i roto i tētahi whatunga mata—ka rere ngā raraunga mai i tētahi pūnga ki tētahi pūnga. Ka taea te mahi tukuruatanga pūnga i runga i te tukutahitanga, i te kore tukutahitanga rānei. Hei tauira, ka taea e ngā pūnga e manaakihia ana i te rohe te whakamahi i te tukuruatanga tukutahitanga, ko ngā pūnga i ngā wāhi mamao ka taea te whakamahi i te tukuruatanga kore tukutahitanga me te pēhitanga me te whakamunatanga waka tāpiri.
Ko te peka DRBD 9 e wehewehea ana e te paparanga kawe, i taea ai te whakatinana i ngā hongere whakawhitiwhiti kōrero ehara i te mea i runga anake i te TCP/IP, engari mā te whakamahi anō hoki i te RDMA/Infiniband. Ki te whakatauritea ki te whakahaere i runga i te whatunga IP tuku iho, ko te whakauru i te urunga tika ki te RAM o tētahi atu rorohiko mā te whakamahi i te RDMA (Remote Direct Memory Access) i whakaneke rua i te mahi tāruarua me te whakaiti i te kawenga CPU mā te 50%. I whakanuia te rahi mōrahi o te rokiroki tukutahi ki te 32 ngā pūnga. Kei roto hoki i te DRBD 9 te arorau tukutahitanga pūnga kua whakarerekētia, he tikanga raka kua hangaia anō, he tautoko tāpiri mō ngā mokowā ingoa whatunga, te whakatikatika aunoa i te tūnga pūnga i runga i te mahi, me te tautoko mō ngā tukunga rua-wāhanga me te horapa whakahou kore-ārai. 
Source: opennet.ru
