Veeam, kamfani ne wanda ke samar da kayan ajiya da software na dawo da bala'i, ya ba da shawarar tsarin blksnap don haɗawa a cikin kernel na Linux, wanda ke aiwatar da hanyar ƙirƙirar hotunan toshe na'urori da bin diddigin canje-canje a cikin na'urorin toshe. Don yin aiki tare da hotuna, an shirya kayan aikin layin umarni na blksnap da ɗakin karatu na blksnap.so, yana ba ku damar yin hulɗa tare da tsarin kernel ta hanyar kiran ioctl daga sararin mai amfani.
Manufar ƙirƙirar tsarin shine don tsara madaidaicin faifai da faifai masu kama-da-wane ba tare da tsayawa aiki ba - ƙirar tana ba ku damar yin rikodin halin yanzu na duk na'urar toshe, samar da yanki mai keɓe don madadin wanda bai dogara da canje-canje masu gudana ba. . Wani muhimmin fasalin blksnap shine ikon ƙirƙirar hotuna lokaci guda don na'urorin toshe da yawa a lokaci ɗaya, wanda ke ba da damar ba kawai don tabbatar da amincin bayanai a matakin na'urar toshe ba, har ma don cimma daidaito a cikin yanayin na'urori daban-daban na toshe a cikin kwafin madadin.
Don bin diddigin canje-canje, tsarin toshe na'urar (bdev) ya ƙara ikon haɗa matattara waɗanda ke ba ku damar kutse buƙatun I/O. blksnap yana aiwatar da tacewa wanda ke katse buƙatun rubutu, yana karanta tsohuwar ƙima kuma yana adana shi a cikin jerin canjin daban wanda ke bayyana yanayin hoton. Tare da wannan hanyar, ma'anar aiki tare da na'urar toshe ba ta canzawa; yin rikodin a cikin na'urar toshe na asali ana yin shi kamar yadda yake, ba tare da la'akari da hotuna ba, wanda ke kawar da yiwuwar lalata bayanai kuma yana guje wa matsaloli ko da kurakurai masu mahimmanci sun faru a blksnap kuma sararin da aka ware don canje-canje ya cika.
Hakanan tsarin yana ba ku damar tantance waɗanne tubalan da aka canza a cikin lokacin tsakanin na ƙarshe da kowane hoton da ya gabata, wanda zai iya zama da amfani don aiwatar da ƙarin tallafi. Don adana canje-canje dangane da yanayin hoto, ana iya keɓance kewayon sassa na sabani akan kowace na'urar toshe, wanda ke ba ku damar adana canje-canje a cikin fayiloli daban-daban a cikin tsarin fayil akan na'urorin toshe. Ana iya ƙara girman yankin don adana canje-canje a kowane lokaci, koda bayan ƙirƙirar hoto.
Blksnap ya dogara ne akan lambar ƙirar veeamsnap da aka haɗa a cikin Veeam Agent don samfurin Linux, amma an sake tsara shi don la'akari da ƙayyadaddun isarwa a cikin babban kwaya ta Linux. Bambancin ra'ayi tsakanin blksnap da veeamsnap shine amfani da tsarin tacewa da ke haɗe zuwa na'urar toshe, maimakon wani ɓangaren bdevfilter daban wanda ke katse I/O.
source: budenet.ru