KVMを使ã†ï¼ˆãƒ‡ã‚£ã‚¹ã‚¯æ€§èƒ½ç·¨ãã®2）hdparmを使ã£ãŸread性能ã®æ¸¬å®š KVMã§ã¯ãƒ–ートディスクã®ä»–ã«3ã¤ã®ãƒ‡ã‚£ã‚¹ã‚¯ã‚’アタッãƒã§ãã¾ã™ã‹ã‚‰ã€3ã¤ã®ã‚ャッシュモードをãã‚Œãžã‚ŒæŒ‡å®šã—ãŸã‚¤ãƒ¡ãƒ¼ã‚¸ãƒ•ã‚¡ã‚¤ãƒ«ã‚’アタッãƒã—ã¦ã‚„ã‚‹ã“ã¨ã«ã—ã¾ã™ã€‚ host# qemu-system-x86_64 -hda vm01.img \ -drive index=1,media=disk,cache=writethrough,file=raw1.img \ -drive index=2,media=disk,cache=writeback,file=raw2.img \ -drive index=3,media=disk,cache=none,file=raw3.img \ ... ã“ã‚Œã§ã‚²ã‚¹ãƒˆOSã‹ã‚‰ã¯ã€/dev/sdb = writethroughã€/dev/sdc = writebackã€/dev/sdd = noneã®ãƒ¢ãƒ¼ãƒ‰ã§åˆ©ç”¨ã§ãるよã†
Why you should never build a backblaze pod - BioTeam
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