??????????
???????
????SATA??????????

???7200?SATA????????????????????o???SSD?????????????????????????????д??????????????????

????SSD??????????

??????饗512KB????????????????????250MB/s-270MB/s?????д???????????200MB/s-210MB/s??

С????饗16KB?????????????????140MB/s?????д???120MB/s-130MB/s??

?????sheepdog????????

????????????κ??????????￡?????????????????virtio?????????????sheepdog????sheepdog????????????????

???д

??????С?16KB????????13-14MB/s
??????С??256KB-4MB?????????30-35MB/s
????

??????С?16KB????????25MB/s?????????????????С??????????棬?????20MB/s
??????С??512KB-4MB?????????125-140MB/s??????????????С??????????棬?????80MB/s????
????????????????????512MB?????????????????????4GB?????????