▁that , ▁each ▁time ▁smaller ▁blocks . ▁At ▁the ▁last ▁moment ▁it ▁will ▁very ▁briefly ▁' free ze ' ▁the ▁existing ▁VM , ▁transfer ▁the ▁last ▁changes ▁in ▁the ▁RAM ▁content ▁and ▁then ▁start ▁the ▁new ▁VM . ▁The ▁intended ▁effect ▁of ▁this ▁process ▁is ▁to ▁minim ize ▁the ▁time ▁during ▁which ▁the ▁VM ▁is ▁susp ended ; ▁in ▁a ▁best ▁case ▁this ▁will ▁be ▁the ▁time ▁of ▁the ▁final ▁transfer ▁plus ▁the ▁time ▁required ▁to ▁start ▁the ▁new ▁VM . ▁ ▁sv M otion ▁( Storage ▁v M otion ) ▁sv M otion ▁enables ▁live ▁migration ▁of ▁virtual ▁dis ks ▁and ▁their ▁home ▁directories ▁without ▁any ▁dow nt ime . ▁sv M otion ▁uses ▁a ▁mirror ▁driver ▁to ▁copy ▁virtual ▁hard ▁drives ▁and / or ▁the ▁home ▁directory ▁from ▁the ▁source ▁to ▁destination ▁dat ast ores ▁simultaneously , ▁which ▁keeps ▁everything ▁in ▁sync ▁until ▁the ▁sv M otion ▁operation ▁is ▁complete ▁on ▁the ▁destination , ▁at ▁which ▁point ▁the ▁source ▁data ▁is ▁deleted . ▁ ▁There ▁is ▁a ▁performance ▁impact ▁from ▁running ▁sv M otion ▁– ▁read ▁IO ▁from ▁the ▁source ▁and ▁write ▁IO ▁on ▁the ▁destination . ▁This ▁can ▁be ▁verified ▁through ▁es xt op . ▁If ▁V AA I ▁is ▁enabled ▁on ▁the ▁ES X i ▁hosts ▁and ▁on ▁the ▁storage ▁array , ▁it ▁will ▁off load ▁the ▁sv M otion ▁migration ▁operation ▁to ▁the ▁array ▁instead ▁of ▁going ▁through ▁the ▁VM kernel , ▁which ▁increases ▁the ▁migration ▁speed . ▁ ▁References ▁ ▁Category : VM ware <0x0A> </s> ▁May