{"id":481,"date":"2014-05-13T13:59:21","date_gmt":"2014-05-13T04:59:21","guid":{"rendered":"https:\/\/blog.id774.net\/entry\/?p=481"},"modified":"2014-05-15T16:15:12","modified_gmt":"2014-05-15T07:15:12","slug":"%e6%97%a2%e5%ad%98%e3%81%ae-lvm-%e3%81%ab%e6%9a%97%e5%8f%b7%e5%8c%96%e3%81%95%e3%82%8c%e3%81%9f-lvm-%e3%82%92%e8%bf%bd%e5%8a%a0%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/blog.id774.net\/entry\/2014\/05\/13\/481\/","title":{"rendered":"\u65e2\u5b58\u306e LVM \u306b\u6697\u53f7\u5316\u3055\u308c\u305f LVM \u3092\u8ffd\u52a0\u3059\u308b"},"content":{"rendered":"

\u5148\u65e5\u30d1\u30bd\u30b3\u30f3\u3092\u8cb7\u3063\u305f<\/a>\u308f\u3051\u3060\u304c\u3053\u308c\u306f SSD 120GB + HDD 2TB \u3068\u3044\u3046\u30b9\u30c8\u30ec\u30fc\u30b8\u69cb\u6210\u3002\u666e\u901a\u306b\u8003\u3048\u3066 SSD \u306b OS \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u308f\u3051\u3060\u304c Debian \u3092\u6700\u5c0f\u306e\u624b\u4f5c\u696d\u304b\u3064\u6c4e\u7528\u7684\u306a\u624b\u6bb5\u3067\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3059\u308b\u3068\u3044\u3046\u8a18\u4e8b<\/a>\u3067\u3082\u66f8\u3044\u305f\u901a\u308a\u500b\u4eba\u7684\u306b\u81ea\u5206\u306e\u30c7\u30fc\u30bf\u3092\u7f6e\u304f\u3042\u3089\u3086\u308b\u30b9\u30c8\u30ec\u30fc\u30b8\u306f\u5fc5\u305a\u6697\u53f7\u5316\u3059\u308b\u3068\u3044\u3046\u30dd\u30ea\u30b7\u30fc\u304c\u3042\u308b\u3002\u305d\u3053\u3067 SSD \u306b\u306f GNU\/Linux \u306b\u5099\u308f\u3063\u3066\u3044\u308b\u6697\u53f7\u5316 LVM \u3092\u6709\u52b9\u306b\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3002\u3055\u3066\u3053\u3053\u3067\u554f\u984c\u306b\u306a\u308b\u306e\u304c HDD \u3067\u3042\u308a\u3001\u3053\u308c\u3082\u6697\u53f7\u5316\u3057\u305f\u4e0a\u3067 LVM \u306b\u8ffd\u52a0\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u65e2\u5b58\u306e\u6697\u53f7\u5316\u6e08\u307f LVM \u306b\u65b0\u3057\u304f\u30b9\u30c8\u30ec\u30fc\u30b8\u3092\u6697\u53f7\u5316\u3057\u3066\u8ffd\u52a0\u3055\u305b\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a18\u8ff0\u3059\u308b\u3002\u306a\u304a\u65b0\u3057\u3044\u30b9\u30c8\u30ec\u30fc\u30b8\u306f \/dev\/sdb \u3068\u3057\u3066\u8a8d\u8b58\u3055\u308c\u3066\u3044\u308b\u524d\u63d0\u3067\u66f8\u304f\u3002<\/p>\n

\u6697\u53f7\u5316\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u306e\u4f5c\u6210<\/strong><\/p>\n

\u3053\u308c\u306f\u57fa\u672c\u7684\u306b\u3053\u3061\u3089\u306e\u8a18\u4e8b<\/a>\u306e\u901a\u308a\u3067\u3042\u308b\u3002<\/p>\n

\u307e\u305a\u306f\u30dc\u30ea\u30e5\u30fc\u30e0\u3092\u4e71\u6570\u3067\u57cb\u3081\u308b\u3002\u3053\u308c\u306f\u4ed6\u306b\u3082\u3084\u308a\u65b9\u304c\u3042\u308b\u3057\u3001\u3060\u3044\u305f\u3044\u5143\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u304c\u4ee5\u524d\u304b\u3089\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u308b\u306a\u3089\u8aad\u307f\u53d6\u308a\u4e0d\u53ef\u306a\u306e\u3067\u305d\u306e\u307e\u307e\u4f7f\u3048\u308b\u3068\u3044\u3046\u3053\u3068\u3082\u6709\u308a\u5f97\u308b\u3002<\/p>\n

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shred -n 1 -v \/dev\/sdb<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u6b21\u306b\u9375\u3092\u751f\u6210\u3059\u308b\u3002 256 \u30d3\u30c3\u30c8\u9577\u306a\u306e\u3067 32 \u30d0\u30a4\u30c8\u3092\u6307\u5b9a\u3002\u751f\u6210\u3057\u305f\u9375\u306f root \u3060\u3051\u8aad\u307f\u53d6\u308c\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304f\u3002<\/p>\n

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dd if=\/dev\/random of=\/etc\/lvm\/lvm.seckey bs=1 count=32
\nchmod 400 \/etc\/lvm\/lvm.seckey<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u6b21\u306b LUKS \u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u306e\u4f5c\u6210\u3092\u3059\u308b\u3002<\/p>\n

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cryptsetup --cipher aes-cbc-essiv:sha256 --key-size 256 luksFormat \/dev\/sdb
\n# \u5927\u6587\u5b57\u3067 YES \u3092\u56de\u7b54\u3059\u308b
\n# \u30d1\u30b9\u30d5\u30ec\u30fc\u30ba\u3092 2 \u56de\u5165\u529b\u3059\u308b
\ncryptsetup luksAddKey \/dev\/sdb \/etc\/lvm\/lvm.seckey
\n# \u30d1\u30b9\u30d5\u30ec\u30fc\u30ba\u3092 1 \u56de\u5165\u529b\u3059\u308b<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u3053\u308c\u3067\u6697\u53f7\u5316\u3055\u308c\u305f\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u304c\u4f5c\u6210\u3055\u308c\u305f\u3002\u6b21\u306e\u3088\u3046\u306b\u78ba\u8a8d\u3059\u308b\u3002 UUID \u3092\u78ba\u8a8d\u3057\u3066\u304a\u304f\u3002<\/p>\n

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# cryptsetup luksDump \/dev\/sdb
\nLUKS header information for \/dev\/sdb
\n
\nVersion:        1
\nCipher name:    aes
\nCipher mode:    cbc-essiv:sha256
\nHash spec:      sha1
\nPayload offset: 4096
\nMK bits:        256
\n\u301c \u7701\u7565 \u301c
\nMK iterations:  77500
\nUUID:           8553a6e4-4f0f-4230-8ddb-ec2f4b68e4eb
\n\u301c \u7701\u7565 \u301c
\nKey Slot 0: ENABLED
\n\u301c \u7701\u7565 \u301c
\nKey Slot 2: DISABLED
\nKey Slot 3: DISABLED
\nKey Slot 4: DISABLED
\nKey Slot 5: DISABLED
\nKey Slot 6: DISABLED
\nKey Slot 7: DISABLED<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

dm-crypt \u30c7\u30d0\u30a4\u30b9\u306e\u4f5c\u6210\u3092\u3059\u308b\u3002 sdb_crypt \u306e\u90e8\u5206\u306f\u597d\u304d\u306a\u540d\u524d\u3067\u826f\u3044\u3002\u65e2\u5b58\u306e LVM \u3068\u63c3\u3048\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u3059\u308b\u3068\u826f\u3044\u3060\u308d\u3046\u3002<\/p>\n

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cryptsetup --key-file \/etc\/lvm\/lvm.seckey luksOpen \/dev\/sdb sdb_crypt<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

LVM \u3078\u306e\u8ffd\u52a0\u3068\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u4f5c\u6210<\/strong><\/p>\n

\u3053\u308c\u3082\u57fa\u672c\u7684\u306b\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b<\/a>\u306e\u901a\u308a\u3002<\/p>\n

dm-crypt \u30c7\u30d0\u30a4\u30b9\u306b PV \u3092\u4f5c\u6210\u3059\u308b\u3002<\/p>\n

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pvcreate \/dev\/mapper\/sdb_crypt<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u4f5c\u6210\u3057\u305f PV \u3092\u65e2\u5b58\u306e VG \u306b\u53c2\u52a0\u3055\u305b\u308b\u3002<\/p>\n

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vgextend raytrek-vg \/dev\/mapper\/sdb_crypt<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u6210\u529f\u3057\u305f\u3089 vgscan \u3084 pvscan \u3067\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n

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# vgscan
\n  Reading all physical volumes.  This may take a while...
\n  Found volume group "raytrek-vg" using metadata type lvm2
\n# pvscan
\n  PV \/dev\/mapper\/sda5_crypt   VG raytrek-vg   lvm2 [119.00 GiB \/ 0    free]
\n  PV \/dev\/mapper\/sdb_crypt    VG raytrek-vg   lvm2 [1.82 TiB \/ 0    free]
\n  Total: 2 [1.94 TiB] \/ in use: 2 [1.94 TiB] \/ in no VG: 0 [0   ]<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u307e\u305f pvdisplay \u3067\u62e1\u5f35\u53ef\u80fd\u306a\u30a8\u30af\u30b9\u30c6\u30f3\u30c8\u6570\u3092\u78ba\u8a8d\u3057\u3066\u304a\u304f\u3002<\/p>\n

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# pvdisplay
\n  --- Physical volume ---
\n  PV Name               \/dev\/mapper\/sda5_crypt
\n  VG Name               raytrek-vg
\n  PV Size               119.00 GiB \/ not usable 0  
\n  Allocatable           yes (but full)
\n  PE Size               4.00 MiB
\n  Total PE              30464
\n  Free PE               0
\n  Allocated PE          30464
\n  PV UUID               Sho5wy-eiSd-TZEU-y7Xs-7vTY-JaX6-i3dwe1
\n   
\n  --- Physical volume ---
\n  PV Name               \/dev\/mapper\/sdb_crypt
\n  VG Name               raytrek-vg
\n  PV Size               1.82 TiB \/ not usable 3.09 MiB
\n  Allocatable           yes
\n  PE Size               4.00 MiB
\n  Total PE              476931
\n  Free PE               476931
\n  Allocated PE          0
\n  PV UUID               YqLai4-8IS3-IH6J-AVhC-aT8J-K6Bx-NhsPYV<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u4e0a\u306e\u4f8b\u3067\u306f 476931 \u304c\u62e1\u5f35\u53ef\u80fd\u3067\u3042\u308b\u3068\u308f\u304b\u308b\u3002\u3053\u308c\u3092\u3082\u3068\u306b VG \u306b\u8ffd\u52a0\u3055\u308c\u305f PV \u4e0a\u306b LV \u3092\u4f5c\u6210\u3059\u308b\u3002\u9818\u57df\u306e\u7121\u99c4\u306e\u306a\u3044\u3088\u3046\u306b\u30a8\u30af\u30b9\u30c6\u30f3\u30c8\u6570\u3092\u5f15\u6570\u306b\u6307\u5b9a\u3059\u308b\u306e\u304c\u63a8\u5968\u3067\u3042\u308b\u3002<\/p>\n

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lvcreate -l 476931 --name data raytrek-vg<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u3053\u308c\u3067 LV \u304c\u3067\u304d\u305f\u306e\u3067\u3001 LV \u4e0a\u306b\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u4f5c\u6210\u3059\u308b\u3002<\/p>\n

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mkfs -t ext4 \/dev\/raytrek-vg\/data<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

mount \u30b3\u30de\u30f3\u30c9\u3092\u767a\u884c\u3057\u3066\u30de\u30a6\u30f3\u30c8\u304c\u3067\u304d\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n

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mkdir \/data
\nmount \/dev\/raytrek-vg\/data \/data
\ndf -T -h<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u6210\u529f\u3057\u305f\u306a\u3089\u4e00\u65e6 umount \u3057\u3066\u304a\u304f\u3002<\/p>\n

\u81ea\u52d5\u30de\u30a6\u30f3\u30c8\u306e\u8a2d\u5b9a<\/strong><\/p>\n

\u6700\u5f8c\u306b\u8d77\u52d5\u6642\u306b\u81ea\u52d5\u30de\u30a6\u30f3\u30c8\u3055\u308c\u308b\u3088\u3046\u5404\u7a2e\u30d5\u30a1\u30a4\u30eb\u3092\u7de8\u96c6\u3059\u308b\u3002\u30c7\u30d0\u30a4\u30b9\u540d\u306f\u306a\u308b\u3079\u304f UUID \u3067\u6307\u5b9a\u3059\u308b\u306e\u304c\u63a8\u5968\u3067\u3042\u308b\u3002<\/p>\n

\u307e\u305a \/etc\/fstab \u3092\u7de8\u96c6\u3059\u308b\u3002<\/p>\n

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\/dev\/mapper\/raytrek--vg-root \/               ext4    relatime,errors=remount-ro 0       1
\n\/dev\/mapper\/raytrek--vg-data \/data               ext4    relatime,errors=remount-ro 0       1<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u307e\u305f \/etc\/crypttab \u306b\u6b21\u306e\u4e00\u884c\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n

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sdb_crypt UUID=8553a6e4-4f0f-4230-8ddb-ec2f4b68e4eb \/etc\/lvm\/lvm.seckey luks<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

mount -a \u3059\u308c\u3070\u81ea\u52d5\u7684\u306b\u30de\u30a6\u30f3\u30c8\u3055\u308c\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u308b\u306f\u305a\u3067\u3042\u308b\u3002<\/p>\n

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# mount -a
\n# df -T -h
\nFilesystem                   Type      Size  Used Avail Use% Mounted on
\n\/dev\/mapper\/raytrek--vg-root ext4       86G   49G   36G  58% \/
\nnone                         tmpfs     4.0K     0  4.0K   0% \/sys\/fs\/cgroup
\nudev                         devtmpfs   16G  4.0K   16G   1% \/dev
\ntmpfs                        tmpfs     3.2G  1.2M  3.2G   1% \/run
\nnone                         tmpfs     5.0M     0  5.0M   0% \/run\/lock
\nnone                         tmpfs      16G  156K   16G   1% \/run\/shm
\nnone                         tmpfs     100M   28K  100M   1% \/run\/user
\n\/dev\/sda1                    ext4      232M   46M  180M  21% \/boot
\n\/dev\/mapper\/raytrek--vg-data ext4      1.8T   68M  1.7T   1% \/data<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u3053\u308c\u3067 \/data \u3092\u30c7\u30fc\u30bf\u9818\u57df\u3068\u3057\u3066\u81ea\u7531\u306b\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5148\u65e5\u30d1\u30bd\u30b3\u30f3\u3092\u8cb7\u3063\u305f\u308f\u3051\u3060\u304c\u3053\u308c\u306f SSD 120GB + HDD 2TB \u3068\u3044\u3046\u30b9\u30c8\u30ec\u30fc\u30b8\u69cb\u6210\u3002\u666e\u901a\u306b\u8003\u3048\u3066 SSD \u306b OS \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u308f\u3051\u3060\u304c Debian \u3092\u6700\u5c0f\u306e\u624b\u4f5c\u696d\u304b\u3064\u6c4e\u7528\u7684\u306a\u624b\u6bb5\u3067\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3059\u308b … \u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-481","post","type-post","status-publish","format-standard","hentry","category-tech"],"_links":{"self":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/posts\/481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/comments?post=481"}],"version-history":[{"count":0,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/posts\/481\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/media?parent=481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/categories?post=481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/tags?post=481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}