Chipangizo chogawanitsa cha DRBD 9.1.0 chatulutsidwa. Chimathandizira kukhazikitsa gulu la RAID-1 lopangidwa kuchokera ku ma disk angapo ochokera ku makina osiyanasiyana olumikizidwa pa netiweki (network mirroring). Dongosololi likugwiritsidwa ntchito ngati module ya kernel. Linux ndipo imagawidwa pansi pa layisensi ya GPLv2.
Nthambi ya drbd 9.1.0 itha kugwiritsidwa ntchito ngati choloweza m'malo mowonekera drbd 9.0.x ndipo imagwirizana kwathunthu ndi protocol, fayilo yosinthira, ndi milingo yogwiritsira ntchito. Zosinthazi zimayang'ana pakukonzanso njira yotsekera zotsekera ndipo cholinga chake ndi kuchepetsa mikangano pokhazikitsa zokhoma mu DRBD I/O code. Kusinthaku kumapangitsa kuti magwiridwe antchito apangidwe ndi ma CPU angapo ndi ma drive a NVMe pochotsa chopinga chomwe chimasokoneza magwiridwe antchito pomwe zopempha zambiri za I/O zifika kuchokera ku ma CPU cores osiyanasiyana. Kupanda kutero, nthambi ya drbd 9.1.0 ndiyofanana ndi kutulutsidwa kwa 9.0.28.
Monga chikumbutso, DRBD itha kugwiritsidwa ntchito kuphatikizira ma drive a cluster node kukhala gawo limodzi losungirako zolakwika. Kwa mapulogalamu ndi dongosolo, gawo losungirali limawoneka ngati chipangizo chotchinga, chofanana pamakina onse. Ndi DRBD, ntchito zonse za disk zam'deralo zimatumizidwa kumalo ena ndikugwirizanitsa ndi ma disks a makina ena. Node imodzi ikalephera, gawo losungirako limapitilizabe kugwira ntchito pogwiritsa ntchito ma node otsala. Node yolephera ikapezekanso, dziko lake limabwezeretsedwanso momwe lilili.
Gulu lomwe limapanga malo osungiramo zinthu likhoza kukhala ndi ma node angapo omwe ali mu netiweki yakomweko komanso omwe amagawidwa m'malo osiyanasiyana malo ogwiritsira ntchito detaKugwirizanitsa m'machitidwe osungira oterewa kumachitika pogwiritsa ntchito ukadaulo wa maukonde a maukonde (deta imagawidwa mu unyolo kuchokera ku node kupita ku node). Kubwerezabwereza kwa ma node kumatha kuchitika m'njira zofananira kapena zosafananira. Mwachitsanzo, ma node omwe ali m'deralo angagwiritse ntchito kubwerezabwereza kogwirizana, pomwe kubwerezabwereza kosasinthasintha ndi kukakamiza kwa magalimoto ndi kubisa kungagwiritsidwe ntchito kusamutsa deta kumalo akutali.
Source: opennet.ru
