{"id":8634,"date":"2025-12-14T21:52:58","date_gmt":"2025-12-14T12:52:58","guid":{"rendered":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=8634"},"modified":"2025-12-19T02:26:19","modified_gmt":"2025-12-18T17:26:19","slug":"vmfs6-tools-%e3%81%a7-lazy-zeroed-%e3%81%aa%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e3%82%92%e8%aa%ad%e3%82%80%e3%81%a8%e3%82%bc%e3%83%ad%e3%81%a7%e3%81%aa%e3%81%84%e5%80%a4%e3%81%8c%e8%aa%ad%e3%82%81","status":"publish","type":"post","link":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=8634","title":{"rendered":"vmfs6-tools \u3067 lazy zeroed \u306a vmdk \u3092\u8aad\u3080\u3068\u30bc\u30ed\u3067\u306a\u3044\u5024\u304c\u8aad\u3081\u308b"},"content":{"rendered":"

ESXi \u304b\u3089 Proxmox VE \uff08\u4ee5\u4e0b PVE\uff09\u306b\u79fb\u884c\u3057\u3088\u3046\u3068\u3057\u3066\u3001\u691c\u8a3c\u3092\u9045\u3005\u3068\u3057\u3066\u9032\u3081\u3066\u3044\u307e\u3059\u3002PVE \u306f\uff08\u3068\u3044\u3046\u304b Linux \u306f\uff09VMFS6 \u4e0a\u306e vmdk \u3092\u76f4\u63a5\u6271\u3046\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3088\u3046\u306a\u306e\u3067\u3001\u4e00\u65e6\u4f55\u304b\u3057\u3089\u306e\u5909\u63db\u3092\u3057\u3066\u6271\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

<\/p>\n

ESXi \u306e VM \u3092\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u3066 OVF \u5f62\u5f0f\u306b\u5909\u63db\u3057\u3001\u305d\u308c\u3092 PVE \u3067\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b<\/a>\u306e\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u305f\u65b9\u6cd5\u306e\u3088\u3046\u3067\u3059\u304c\u3001\u305d\u3046\u3059\u308b\u3068\u5143\u306e vmdk \u3068\u540c\u3058\u30b5\u30a4\u30ba\u306e\u4e00\u6642\u30c7\u30a3\u30b9\u30af\u304c\u5fc5\u8981\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u5b09\u3057\u304f\u3042\u308a\u307e\u305b\u3093\uff08\u6700\u8fd1 HDD \u9ad8\u3044\u3057\uff09\u3002\u3068\u3044\u3046\u308f\u3051\u3067\u30c7\u30a3\u30b9\u30af\u30a4\u30e1\u30fc\u30b8\u3092\u76f4\u63a5\u5909\u63db\u3057\u3001VM \u305d\u306e\u3082\u306e\u306e\u8a2d\u5b9a\u306f\u9762\u5012\u3067\u3059\u304c\u624b\u4f5c\u696d\u3067\u884c\u3046\u3053\u3068\u3092\u8003\u3048\u307e\u3059\u3002VM \u306e\u6570\u304c\u5c11\u306a\u3044\u306a\u3089\u3053\u308c\u3067\u3082\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

\u30c7\u30a3\u30b9\u30af\u30a4\u30e1\u30fc\u30b8\u3092\u76f4\u63a5\u5909\u63db\u3059\u308b\u306b\u306f\u3001ESXi \u306e VMFS6 \u3092 PVE \u4e0a\u3067 vmfs6-tools \u3067\u8aad\u307f\u8fbc\u307f\u5c02\u7528\u30de\u30a6\u30f3\u30c8\u3057\u3001vmdk \u30d5\u30a1\u30a4\u30eb\u3092 qemu-img \u30b3\u30de\u30f3\u30c9\u3067 qcow2 \u5f62\u5f0f\u306a\u308a raw \u5f62\u5f0f\u306b\u5909\u63db\u3057\u307e\u3059\u3002vmfs6-tools \u306f Debian \u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u30ea\u30dd\u30b8\u30c8\u30ea\u304b\u3089\u53d6\u3063\u3066\u304f\u308b\u5f62\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\n
\r\nroot@pve:~# apt install vmfs6-tools\r\n\uff08\u4e2d\u7565\uff09\r\nroot@pve:~# vmfs6-fuse \/dev\/sdb8 \/mnt\/vmfs\r\nVMFS version: 6\r\nroot@pve:~# qemu-img convert -f vmdk -O qcow2 \/mnt\/vmfs\/somevm\/somevm.vmdk ~\/somevm.qcow2\r\n<\/pre>\n<\/blockquote>\n
\u2026\u3068\u3044\u3046\u306e\u304c\u901a\u308a\u4e00\u904d\u306a\u8a71\u306a\u3093\u3067\u3059\u304c\u3001\u691c\u8a3c\u3057\u3066\u3044\u3066\u6c17\u3065\u3044\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u307e\u305a\u3001thin provisioning\u3001lazy zeroed thick provisioning\u3001eager zeroed thick provisioning \u306e vmdk \u306b\u3064\u3044\u3066\u3001\u305d\u308c\u305e\u308c\u306b\u307b\u307c\u540c\u3058\u30c7\u30fc\u30bf\u3092\u66f8\u3044\u3066\uff08\u5177\u4f53\u7684\u306b\u306f Ubuntu \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\uff09\u3001\u305d\u306e\u5f8c qcow2 \u5f62\u5f0f\u306b\u5909\u63db\u3057\u307e\u3057\u305f\u3002\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\n
\r\nroot@pve:~# time qemu-img convert -f vmdk -O qcow2 \/mnt\/tmp\/ubuntu-eager\/ubuntu-eager.vmdk \/mnt\/pve\/testdir\/images\/ubuntu-eager.qcow2\r\n\r\nreal    20m43.444s\r\nuser    0m15.347s\r\nsys     1m3.470s\r\nroot@pve:~# time qemu-img convert -f vmdk -O qcow2 \/mnt\/tmp\/ubuntu-lazy\/ubuntu-lazy.vmdk \/mnt\/pve\/testdir\/images\/ubuntu-lazy.qcow2\r\n\r\nreal    20m7.457s\r\nuser    0m15.473s\r\nsys     1m3.892s\r\nroot@pve:~# time qemu-img convert -f vmdk -O qcow2 \/mnt\/tmp\/ubuntu-thin\/ubuntu-thin.vmdk \/mnt\/pve\/testdir\/images\/ubuntu-thin.qcow2\r\n\r\nreal    6m0.489s\r\nuser    0m11.766s\r\nsys     1m0.454s\r\nroot@pve:~# ls -lh \/mnt\/pve\/testdir\/images\/\r\ntotal 15G\r\n-rw-r--r-- 1 root root 4.9G Oct 10 20:58 ubuntu-eager.qcow2\r\n-rw-r--r-- 1 root root 4.9G Oct 10 21:20 ubuntu-lazy.qcow2\r\n-rw-r--r-- 1 root root 4.9G Oct 10 21:27 ubuntu-thin.qcow2\r\n<\/pre>\n<\/blockquote>\n
\u3067\u304d\u308b qcow2 \u30d5\u30a1\u30a4\u30eb\u306e\u30b5\u30a4\u30ba\u304c\u540c\u3058\u306a\u306e\u306f\u5f53\u7136\u4e88\u60f3\u3067\u304d\u305f\u3053\u3068\u3067\u3059\u304c\u3001thin \u3060\u3051\u304c\u51e6\u7406\u304c\u65e9\u304f\u3001lazy \u3068 eager \u306f\u6642\u9593\u304c\u304b\u304b\u3063\u3066\u3044\u307e\u3059\u3002lazy \u306a\u306e\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u306e\u306f\u304a\u304b\u3057\u3044\u306a\uff1f\u3068\u601d\u3063\u3066 vmdk \u306e backing file \uff08\u5b9f\u969b\u306e\u30c7\u30a3\u30b9\u30af\u306e\u30c7\u30fc\u30bf\u304c\u5165\u3063\u3066\u3044\u308b\u30d5\u30a1\u30a4\u30eb\u3002xxx-flat.vmdk \u3068\u3044\u3046\u540d\u524d\uff09\u3092 dd \u3067\u8aad\u3093\u3067\u307f\u3066\u3082\u3001\u3084\u3063\u3071\u308a\u540c\u3058\u50be\u5411\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\n
\r\nroot@pve:~# time dd if=\/mnt\/tmp\/ubuntu-eager\/ubuntu-eager-flat.vmdk of=\/dev\/null bs=1M\r\n65536+0 records in\r\n65536+0 records out\r\n68719476736 bytes (69 GB, 64 GiB) copied, 1244.46 s, 55.2 MB\/s\r\n\r\nreal    20m44.479s\r\nuser    0m0.331s\r\nsys     0m59.913s\r\nroot@pve:~# time dd if=\/mnt\/tmp\/ubuntu-lazy\/ubuntu-lazy-flat.vmdk of=\/dev\/null bs=1M\r\n65536+0 records in\r\n65536+0 records out\r\n68719476736 bytes (69 GB, 64 GiB) copied, 1208.32 s, 56.9 MB\/s\r\n\r\nreal    20m8.364s\r\nuser    0m0.322s\r\nsys     1m0.591s\r\nroot@pve:~# time dd if=\/mnt\/tmp\/ubuntu-thin\/ubuntu-thin-flat.vmdk of=\/dev\/null bs=1M\r\n65536+0 records in\r\n65536+0 records out\r\n68719476736 bytes (69 GB, 64 GiB) copied, 353.017 s, 195 MB\/s\r\n\r\nreal    5m53.066s\r\nuser    0m0.215s\r\nsys     0m51.034s\r\n<\/pre>\n<\/blockquote>\n
lazy \u306a\u3089 vmdk \u306e\u5927\u534a\u3092\u5360\u3081\u308b\u3001\u307e\u3060\u66f8\u304d\u8fbc\u307f\u304c\u3055\u308c\u3066\u3044\u306a\u3044\uff08\u3064\u307e\u308a\u30bc\u30ed\u306e\u307e\u307e\u3067\u3042\u308b\u306f\u305a\u306e\uff09\u9818\u57df\u306f\u3001\u5b9f\u969b\u306b\u306f\u8aad\u307f\u8fbc\u307f\u3092\u3057\u306a\u3044\u6319\u52d5\u306b\u306a\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3057\u3001ESXi \u4e0a\u3067 backing file \u3092\u8aad\u3080\u3068\u5b9f\u969b\u306b\u305d\u306e\u3088\u3046\u306a\u6319\u52d5\u3092\u3057\u3066\u3044\u308b\u3088\u3046\u306a\u6642\u9593\u3067\u5b8c\u4e86\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001vmfs6-tools \u306b\u304a\u3051\u308b\u3053\u306e\u9045\u3055\u306f\u660e\u3089\u304b\u306b\u4f55\u304b\u3057\u3089\u8aad\u307f\u8fbc\u307f\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3057\u3001\u5b9f\u969b iostat \u3067\u898b\u308b\u3068\u8aad\u307f\u8fbc\u307f\u3092\u884c\u3063\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n
\u4e0a\u306e\u4f8b\u3067\u306f ESXi \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f HDD \u306f\u30bc\u30ed\u3092\u66f8\u3044\u3066\u6d88\u53bb\u3057\u305f\u3082\u306e\u3092\u4f7f\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u3067\u306f\u30e9\u30f3\u30c0\u30e0\u30c7\u30fc\u30bf\u3092\u66f8\u3044\u3066\u6d88\u53bb\u3057\u305f\u3082\u306e\u3092\u4f7f\u3063\u305f\u3089\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002\u306a\u304a\u3001\u4eca\u5ea6\u306f Ubuntu \u306f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u305b\u305a\u3001vmkfstools \u3067\u4f5c\u6210\u3057\u305f\u76f4\u5f8c\u306e vmdk \u3092\u5bfe\u8c61\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\n
\r\nroot@pve:~# time qemu-img convert -f vmdk -O qcow2 \/mnt\/vmfs\/dirty-lazy.vmdk ~\/dirty-lazy.qcow2\r\n\r\nreal    20m13.763s\r\nuser    0m10.469s\r\nsys     1m35.590s\r\nroot@pve:~# time qemu-img convert -f vmdk -O qcow2 \/mnt\/vmfs\/dirty-eager.vmdk ~\/dirty-eager.qcow2\r\n\r\nreal    20m41.797s\r\nuser    0m15.293s\r\nsys     1m0.150s\r\nroot@pve:~# time qemu-img convert -f vmdk -O qcow2 \/mnt\/vmfs\/dirty-thin.vmdk ~\/dirty-thin.qcow2\r\n\r\nreal    0m51.079s\r\nuser    0m11.715s\r\nsys     0m39.344s\r\nroot@pve:~# ls -lh\r\ntotal 65G\r\n-rw-r--r-- 1 root root 193K Dec 14 19:24 dirty-eager.qcow2\r\n-rw-r--r-- 1 root root  65G Dec 14 18:44 dirty-lazy.qcow2\r\n-rw-r--r-- 1 root root 193K Dec 14 19:44 dirty-thin.qcow2\r\n<\/pre>\n<\/blockquote>\n
lazy \u3060\u3051\u30c7\u30ab\u3044\u3067\u3059\u3002\u3053\u308c\u306f qcow2 \u30a4\u30e1\u30fc\u30b8\u306b\u306f\u30bc\u30ed\u3067\u306a\u3044\u5024\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u3001\u3064\u307e\u308a lazy \u306a vmdk \u3092\u8aad\u3093\u3060\u3068\u304d\u306b\u30bc\u30ed\u3067\u306a\u3044\u5024\u3092\u8aad\u3093\u3060\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n
lazy \u306a vmdk \u306f\u3001\u30c7\u30a3\u30b9\u30af\u306e\u9818\u57df\u306f\u4e88\u7d04\u3059\u308b\u304c\u3001\u305d\u306e\u9818\u57df\u306b\u30bc\u30ed\u3092\u66f8\u304d\u8fbc\u3080\u4ee3\u308f\u308a\u306b\u3001\u305d\u306e\u9818\u57df\u306f\u307e\u3060\u66f8\u304d\u8fbc\u307f\u304c\u884c\u308f\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u8aad\u307f\u8fbc\u3093\u3060\u3089\u30bc\u30ed\u3092\u8fd4\u305b\u3068\u30d5\u30e9\u30b0\u3092\u7acb\u3066\u308b\u3053\u3068\u3067 lazy \u306a\u30bc\u30ed\u5316\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\uff08\u4e88\u7d04\u3057\u305f\u3046\u3048\u3067\u5b9f\u969b\u306b\u30bc\u30ed\u3092\u66f8\u304d\u8fbc\u3080\u306e\u304c eager zeroed\u3001\u4e88\u7d04\u81ea\u4f53\u3092\u3057\u306a\u3044\u306e\u304c thin\uff09\u3002\u4eca\u56de\u30bc\u30ed\u3067\u306a\u3044\u5024\u3092\u8aad\u3093\u3067\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u4e0a\u8a18\u306e\u30d5\u30e9\u30b0\u3092\u8a8d\u8b58\u305b\u305a\u3001\u4e88\u7d04\u3057\u305f\u9818\u57df\u306e\u30c7\u30fc\u30bf\u3092\u305d\u306e\u307e\u307e\u8aad\u3093\u3067\u3057\u307e\u3063\u3066\u3044\u308b\u3068\u898b\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u72b6\u614b\u3067\u5909\u63db\u3092\u304b\u3051\u308b\u3068\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u30ec\u30d9\u30eb\u3067\u898b\u305b\u3066\u306f\u3044\u3051\u306a\u3044VM\u30db\u30b9\u30c8\u306e\u751f\u30c7\u30a3\u30b9\u30af\u306e\u69d8\u5b50\u304c\u30b2\u30b9\u30c8\u304b\u3089\u898b\u3048\u3066\u3057\u307e\u3046\u3053\u3068\u306b\u306a\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u554f\u984c\u3092\u306f\u3089\u3093\u3067\u3044\u307e\u3059\u3002\u3082\u3057\u3053\u308c\u3092\u6c17\u306b\u3059\u308b\u306e\u3067\u3042\u308c\u3070\u3001ESXi \u4e0a\u3067 eager zeroed \u306b\u5909\u63db\u3059\u308b (vmkfstools -k) \u304b thin \u306b\u5909\u63db\u3059\u308b (vmkfstools -K) \u3068\u3044\u3063\u305f\u51e6\u7f6e\u3092\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
ESXi \u304b\u3089 Proxmox VE \uff08\u4ee5\u4e0b PVE\uff09\u306b\u79fb\u884c\u3057\u3088\u3046\u3068\u3057\u3066\u3001\u691c\u8a3c\u3092\u9045\u3005\u3068\u3057\u3066\u9032\u3081\u3066\u3044\u307e\u3059\u3002PVE \u306f\uff08\u3068\u3044\u3046\u304b Linux \u306f\uff09VMFS6 \u4e0a\u306e vmdk \u3092\u76f4\u63a5\u6271\u3046\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3088\u3046\u306a\u306e\u3067\u3001\u4e00\u65e6\u4f55\u304b\u3057\u3089\u306e […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-8634","post","type-post","status-publish","format-standard","hentry","category-technology"],"_links":{"self":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/8634","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8634"}],"version-history":[{"count":7,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/8634\/revisions"}],"predecessor-version":[{"id":8642,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/8634\/revisions\/8642"}],"wp:attachment":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8634"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8634"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8634"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}