Ukukhishwa kwedivayisi yebhulokhi ephindiwe esabalalisiwe i-DRBD 9.1.0 kushicilelwe, okukuvumela ukuthi usebenzise okuthile okufana nohlu lwe-RAID-1 olwakhiwe ngamadiski amaningana emishini ehlukene exhunywe kunethiwekhi (i-network mirroring). Uhlelo luklanywe njengemojula ye-Linux kernel futhi lusatshalaliswa ngaphansi kwelayisensi ye-GPLv2.
Igatsha le-drbd 9.1.0 lingasetshenziswa ukufaka esikhundleni ngokusobala i-drbd 9.0.x futhi lihambisana ngokugcwele nezinga lephrothokholi, amafayela okumisa nezinsiza. Izinguquko zifinyelela ekusetshenzisweni kabusha komshini wokusetha izingidi futhi kuhloswe ngazo ukunciphisa ukuncintisana lapho kusetha amalokhi kukhodi ebhekele i-I/O ku-DRBD. Ushintsho lwenza kwaba nokwenzeka ukuthuthukisa ukusebenza ekucushweni ngenani elikhulu lama-CPU kanye namadrayivu e-NVMe, ngokususa ibhodlela elithinta kabi ukusebenza lapho inani elikhulu lezicelo ezifanayo ze-I/O zitholwa kuma-CPU cores ahlukene. Uma kungenjalo, igatsha le-drbd 9.1.0 lifana nokukhishwa kwe-9.0.28.
Khumbula ukuthi i-DRBD ingasetshenziswa ukuhlanganisa amadrayivu e-cluster node ibe isitoreji esisodwa esibekezelela iphutha. Kuzinhlelo zokusebenza kanye nesistimu, isitoreji esinjalo sibukeka njengedivayisi ye-block efanayo kuwo wonke amasistimu. Uma usebenzisa i-DRBD, yonke imisebenzi yediski yendawo ithunyelwa kwamanye ama-node futhi ivumelaniswe namadiski eminye imishini. Uma i-node eyodwa ihluleka, isitoreji sizoqhubeka nokusebenza ngokuzenzakalelayo sisebenzisa ama-node asele. Lapho ukutholakala kwe-node ehlulekile kubuyiselwa, isimo sayo sizolethwa ngokuzenzakalela.
Iqoqo elakha isitoreji lingabandakanya amanodi amaningana atholakala kokubili kunethiwekhi yendawo futhi asatshalaliswe ngokwezindawo ezikhungweni zedatha ezihlukile. Ukuvumelanisa kusitoreji esinamagatsha anjalo kwenziwa kusetshenziswa ubuchwepheshe benethiwekhi yemeshi (idatha igeleza ngochungechunge isuka endaweni eyinodi iye endaweni). Ukuphindaphinda kwamanodi kungenziwa kokubili ngemodi yokuvumelanisa ne-asynchronous. Isibonelo, ama-node aphethwe endaweni angasebenzisa ukuphindaphinda okuvumelanayo, futhi ukuze kudluliselwe kumasayithi akude, ukuphindaphinda okungavumelaniyo kungasetshenziswa ngokuminyanisa okwengeziwe nokubethela kwethrafikhi.
Source: opennet.ru