{"id":827,"date":"2021-11-11T19:29:59","date_gmt":"2021-11-11T10:29:59","guid":{"rendered":"https:\/\/www.alprovs.com\/wordpress\/?p=827"},"modified":"2021-11-11T19:30:39","modified_gmt":"2021-11-11T10:30:39","slug":"linuxdd%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%9b%e3%81%9alvm%e3%81%aehdd%e4%ba%a4%e6%8f%9b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.alprovs.com\/wordpress\/?p=827","title":{"rendered":"[Linux]dd\u3092\u4f7f\u7528\u305b\u305aLVM\u306eHDD\u4ea4\u63db\u65b9\u6cd5"},"content":{"rendered":"

\uff11\uff0e\u74b0\u5883<\/h1>\r\n

OS : CentOS Stream release 8 [4.18.0-348.el8.x86_64]
\u203bKVM\u4e0a\u3067\u52d5\u4f5c<\/p>\r\n

\uff12\uff0e\u3084\u308b\u3053\u3068<\/h1>\r\n

LVM\u69cb\u6210\u306eLinux\u3067\u65b0\u3057\u3044HDD\u306b\u4ea4\u63db\u3059\u308b\u3002
\u540c\u3058\u5bb9\u91cf\u3001\u79fb\u884c\u306b\u591a\u304f\u306e\u306e\u6642\u9593\u3092\u304b\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308c\u3070\u3001dd\u30b3\u30de\u30f3\u30c9\u3092\u5229\u7528\u3059\u308b\u306e\u304c\u5358\u7d14\u3067\u697d\u3060\u304c\u3001\u5c11\u3057\u624b\u9593\u304c\u5897\u3048\u308b\u304cLVM\u306e\u6a5f\u80fd\u3092\u5229\u7528\u3059\u308b\u3068\u505c\u6b62\u6642\u9593\u3092\u77ed\u304f\u79fb\u884c\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\r\n

LVM\u3092\u4f7f\u7528\u3057\u3066\u3044\u306a\u3044\u30b7\u30b9\u30c6\u30e0\u3068\u306f\u9055\u3044\u3001\u30ea\u30ab\u30d0\u30ea\u30c7\u30a3\u30b9\u30af\u306f\u4e0d\u8981<\/p>\r\n

\u524d\u63d0\u3068\u3057\u3066\u3001\u79fb\u884c\u5bfe\u8c61\u306e\u30de\u30b7\u30f3\u306f\u505c\u6b62\u3067\u304d\u308b\u3053\u3068\u3068Grub2\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u3053\u3068<\/p>\r\n

\uff13\uff0e\u624b\u9806<\/h1>\r\n
    \r\n
  1. \u79fb\u884c\u5bfe\u8c61\u306e\u30de\u30b7\u30f3\u3092\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3057\u3001\u79fb\u884c\u5148\u306eHDD\u3092\u63a5\u7d9a\u3059\u308b<\/li>\r\n
  2. \u901a\u5e38\u901a\u308a\u8d77\u52d5\u3059\u308b<\/li>\r\n
  3. \u79fb\u884c\u5148\u306eHDD\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u5207\u308b<\/li>\r\n
  4. \u79fb\u884c\u5148\u306e\/boot\u7528\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3059\u308b<\/li>\r\n
  5. \u79fb\u884c\u5148\u306e\/boot\u3092\u30de\u30a6\u30f3\u30c8\u3059\u308b<\/li>\r\n
  6. \u79fb\u884c\u5143\u304b\u3089\u79fb\u884c\u5148\u3078\/boot\u4ee5\u4e0b\u3092\u30b3\u30d4\u30fc\u3059\u308b<\/li>\r\n
  7. \/etc\/fstab\u304cUUID\u3067\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u79fb\u884c\u5148\u306eHDD\u306e\u3082\u306e\u306b\u4fee\u6b63\u3059\u308b<\/li>\r\n
  8. \u79fb\u884c\u5148HDD\u3092LVM\u306b\u8ffd\u52a0\u3057\u79fb\u884c\u64cd\u4f5c\u3092\u884c\u3046<\/li>\r\n
  9. \u518d\u8d77\u52d5\u3059\u308b<\/li>\r\n
  10. grub\u306econfig\u30d5\u30a1\u30a4\u30eb\u3092\u751f\u6210\u3059\u308b<\/li>\r\n
  11. \u79fb\u884c\u5148HDD\u306bgrub\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b<\/li>\r\n
  12. \u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3057\u3001\u79fb\u884c\u5143\u30c7\u30a3\u30b9\u30af\u3092\u53d6\u308a\u9664\u3044\u305f\u3089\u8d77\u52d5\u78ba\u8a8d\u3092\u884c\u3046<\/li>\r\n<\/ol>\r\n

    \u4ee5\u4e0a<\/p>\r\n

    \uff14\uff0e\u624b\u9806\u8a73\u7d30<\/h1>\r\n

    \uff11\uff0e\u79fb\u884c\u5bfe\u8c61\u306e\u30de\u30b7\u30f3\u3092\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3057\u3001\u79fb\u884c\u5148\u306eHDD\u3092\u63a5\u7d9a\u3059\u308b<\/h3>\r\n

    \uff12\uff0e\u901a\u5e38\u901a\u308a\u8d77\u52d5\u3059\u308b<\/h3>\r\n

    \uff13\uff0e\u79fb\u884c\u5148\u306eHDD\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u5207\u308b<\/h3>\r\n

    fdisk, parted, gdisk\u306a\u3069\u3092\u5229\u7528\u3057\u3066\u79fb\u884c\u5148HDD\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3059\u308b\u3002\u3068\u304f\u306b\u69cb\u6210\u3092\u5909\u3048\u308b\u5fc5\u8981\u304c\u306a\u3051\u308c\u3070\u79fb\u884c\u5143\u3068\u63c3\u3048\u308b\u306e\u304c\u697d<\/p>\r\n

    \u30fb\u79fb\u884c\u5143\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u60c5\u5831<\/p>\r\n

    # fdisk -l \/dev\/vda<\/code><\/p>\r\n

    \"\"<\/a><\/p>\r\n

    \u30fb\u79fb\u884c\u5148\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u4f5c\u6210<\/p>\r\n

    [root@develop ~]# fdisk \/dev\/vdb\r\n\r\nfdisk (util-linux 2.32.1) \u3078\u3088\u3046\u3053\u305d\u3002\r\n\u3053\u3053\u3067\u8a2d\u5b9a\u3057\u305f\u5185\u5bb9\u306f\u3001\u66f8\u304d\u8fbc\u307f\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u307e\u3067\u30e1\u30e2\u30ea\u306e\u307f\u306b\u4fdd\u6301\u3055\u308c\u307e\u3059\u3002\r\n\u66f8\u304d\u8fbc\u307f\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u6ce8\u610f\u3057\u3066\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\r\n\r\n\u30c7\u30d0\u30a4\u30b9\u306b\u306f\u8a8d\u8b58\u53ef\u80fd\u306a\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u305b\u3093\u3002\r\n\u65b0\u3057\u3044 DOS \u30c7\u30a3\u30b9\u30af\u30e9\u30d9\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\u8b58\u5225\u5b50\u306f 0x1ef41471 \u3067\u3059\u3002\r\n\r\n\u30b3\u30de\u30f3\u30c9 (m \u3067\u30d8\u30eb\u30d7): n\r\n\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30bf\u30a4\u30d7\r\n   p   \u57fa\u672c\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3 (0 \u30d7\u30e9\u30a4\u30de\u30ea, 0 \u62e1\u5f35, 4 \u7a7a\u304d)\r\n   e   \u62e1\u5f35\u9818\u57df (\u8ad6\u7406\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u304c\u5165\u308a\u307e\u3059)\r\n\u9078\u629e (\u65e2\u5b9a\u5024 p): p\r\n\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u756a\u53f7 (1-4, \u65e2\u5b9a\u5024 1): \r\n\u6700\u521d\u306e\u30bb\u30af\u30bf (2048-268435455, \u65e2\u5b9a\u5024 2048): \r\n\u6700\u7d42\u30bb\u30af\u30bf, +\u30bb\u30af\u30bf\u756a\u53f7 \u307e\u305f\u306f +\u30b5\u30a4\u30ba{K,M,G,T,P} (2048-268435455, \u65e2\u5b9a\u5024 268435455): 2099199\r\n\r\n\u65b0\u3057\u3044\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3 1 \u3092\u30bf\u30a4\u30d7 Linux\u3001\u30b5\u30a4\u30ba 1 GiB \u3067\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\r\n\r\n\u30b3\u30de\u30f3\u30c9 (m \u3067\u30d8\u30eb\u30d7): n\r\n\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30bf\u30a4\u30d7\r\n   p   \u57fa\u672c\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3 (1 \u30d7\u30e9\u30a4\u30de\u30ea, 0 \u62e1\u5f35, 3 \u7a7a\u304d)\r\n   e   \u62e1\u5f35\u9818\u57df (\u8ad6\u7406\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u304c\u5165\u308a\u307e\u3059)\r\n\u9078\u629e (\u65e2\u5b9a\u5024 p): p\r\n\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u756a\u53f7 (2-4, \u65e2\u5b9a\u5024 2): \r\n\u6700\u521d\u306e\u30bb\u30af\u30bf (2099200-268435455, \u65e2\u5b9a\u5024 2099200): \r\n\u6700\u7d42\u30bb\u30af\u30bf, +\u30bb\u30af\u30bf\u756a\u53f7 \u307e\u305f\u306f +\u30b5\u30a4\u30ba{K,M,G,T,P} (2099200-268435455, \u65e2\u5b9a\u5024 268435455): \r\n\r\n\u65b0\u3057\u3044\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3 2 \u3092\u30bf\u30a4\u30d7 Linux\u3001\u30b5\u30a4\u30ba 127 GiB \u3067\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\r\n\r\n\u30b3\u30de\u30f3\u30c9 (m \u3067\u30d8\u30eb\u30d7): a\r\n\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u756a\u53f7 (1,2, \u65e2\u5b9a\u5024 2): 1\r\n\r\n\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3 1 \u306e\u8d77\u52d5\u30d5\u30e9\u30b0\u3092\u6709\u52b9\u306b\u3057\u307e\u3057\u305f\u3002\r\n\r\n\u30b3\u30de\u30f3\u30c9 (m \u3067\u30d8\u30eb\u30d7): t\r\n\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u756a\u53f7 (1,2, \u65e2\u5b9a\u5024 2): \r\n16 \u9032\u6570\u30b3\u30fc\u30c9 (L \u3067\u5229\u7528\u53ef\u80fd\u306a\u30b3\u30fc\u30c9\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059): 8e\r\n\r\n\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u306e\u30bf\u30a4\u30d7\u3092 'Linux' \u304b\u3089 'Linux LVM' \u306b\u5909\u66f4\u3057\u307e\u3057\u305f\u3002\r\n\r\n\u30b3\u30de\u30f3\u30c9 (m \u3067\u30d8\u30eb\u30d7): w\r\n\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u60c5\u5831\u304c\u5909\u66f4\u3055\u308c\u307e\u3057\u305f\u3002\r\nioctl() \u3092\u547c\u3073\u51fa\u3057\u3066\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u60c5\u5831\u3092\u518d\u8aad\u307f\u8fbc\u307f\u3057\u307e\u3059\u3002\r\n\u30c7\u30a3\u30b9\u30af\u3092\u540c\u671f\u3057\u3066\u3044\u307e\u3059\u3002\r\n\r\n[root@develop ~]# fdisk -l \/dev\/vdb\r\n\u30c7\u30a3\u30b9\u30af \/dev\/vdb: 128 GiB, 137438953472 \u30d0\u30a4\u30c8, 268435456 \u30bb\u30af\u30bf\r\n\u5358\u4f4d: \u30bb\u30af\u30bf (1 * 512 = 512 \u30d0\u30a4\u30c8)\r\n\u30bb\u30af\u30bf\u30b5\u30a4\u30ba (\u8ad6\u7406 \/ \u7269\u7406): 512 \u30d0\u30a4\u30c8 \/ 512 \u30d0\u30a4\u30c8\r\nI\/O \u30b5\u30a4\u30ba (\u6700\u5c0f \/ \u63a8\u5968): 512 \u30d0\u30a4\u30c8 \/ 512 \u30d0\u30a4\u30c8\r\n\u30c7\u30a3\u30b9\u30af\u30e9\u30d9\u30eb\u306e\u30bf\u30a4\u30d7: dos\r\n\u30c7\u30a3\u30b9\u30af\u8b58\u5225\u5b50: 0x1ef41471\r\n\r\n\u30c7\u30d0\u30a4\u30b9   \u8d77\u52d5 \u958b\u59cb\u4f4d\u7f6e  \u7d42\u4e86\u4f4d\u7f6e    \u30bb\u30af\u30bf \u30b5\u30a4\u30ba Id \u30bf\u30a4\u30d7\r\n\/dev\/vdb1  *        2048   2099199   2097152     1G 83 Linux\r\n\/dev\/vdb2        2099200 268435455 266336256   127G 8e Linux LVM\r\n\r\n<\/pre>\r\n
    \uff14\uff0e\u79fb\u884c\u5148\u306e\/boot\u7528\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3059\u308b<\/h3>\r\n
    # mkfs.xfs \/dev\/vdb1<\/code><\/p>\r\n
    \uff15\uff0e\u79fb\u884c\u5148\u306e\/boot\u3092\u30de\u30a6\u30f3\u30c8\u3059\u308b<\/h3>\r\n
    # mount \/dev\/vdb1 \/mnt<\/code><\/p>\r\n
    \uff16\uff0e\u79fb\u884c\u5143\u304b\u3089\u79fb\u884c\u5148\u3078\/boot\u4ee5\u4e0b\u3092\u30b3\u30d4\u30fc\u3059\u308b<\/h3>\r\n
    cp\u3001rsync\u306a\u3069\u3092\u5229\u7528\u3057\u3066\u30b3\u30d4\u30fc\u3001cp \u306e\u5834\u5408\u306f -p \u3001rsync \u306e\u5834\u5408\u306f -a \u30aa\u30d7\u30b7\u30e7\u30f3\u306a\u3069\u3092\u5229\u7528\u3057\u3066\u6240\u6709\u8005\u3001\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u306a\u3069\u304c\u5909\u308f\u3089\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\r\n
    # cp -p \/boot\/ \/mnt\/\r\n\r\nor\r\n\r\n# rsync -avu --delete --progress \/boot\/ \/mnt\/<\/pre>\r\n
    \uff17\uff0e\/etc\/fstab\u304cUUID\u3067\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u79fb\u884c\u5148\u306eHDD\u306e\u3082\u306e\u306b\u4fee\u6b63\u3059\u308b<\/h3>\r\n
    # blkid \/dev\/vdb1<\/code><\/p>\r\n
    \uff18\uff0e\u79fb\u884c\u5148HDD\u3092LVM\u306b\u8ffd\u52a0\u3057\u79fb\u884c\u64cd\u4f5c\u3092\u884c\u3046<\/h3>\r\n
    # vgs
    VG #PV #LV #SN Attr VSize VFree
    cs 1 3 0 wz--n- <127.00g 0

    # pvcreate \/dev\/vdb2\r\n# vgextend  VGNAME \/dev\/vdb2

    # pvs
    PV VG Fmt Attr PSize PFree 
    \/dev\/vda2 cs lvm2 a-- <127.00g 0 
    \/dev\/vdb2 cs lvm2 a-- <127.00g <127.00g
    \r\n# pvmove \/dev\/vda2 \/dev\/vdb2
    \/dev\/vda2: Moved: 0.07%
    \/dev\/vda2: Moved: 0.36%
    \/dev\/vda2: Moved: 0.63%
    \/dev\/vda2: Moved: 0.88%
    :
    :
    \/dev\/vda2: Moved: 99.81%
    \/dev\/vda2: Moved: 100.00%

    # pvs
    PV VG Fmt Attr PSize PFree 
    \/dev\/vda2 cs lvm2 a-- <127.00g <127.00g
    \/dev\/vdb2 cs lvm2 a-- <127.00g 0
    \r\n# vgreduce VGNAME \/dev\/vda2
    \r\n# pvremove \/dev\/vda2<\/pre>\r\n
    \uff19\uff0e\u518d\u8d77\u52d5\u3059\u308b<\/h3>\r\n
    # reboot<\/code><\/p>\r\n
    \uff11\uff10\uff0egrub\u306econfig\u30d5\u30a1\u30a4\u30eb\u3092\u751f\u6210\u3059\u308b<\/h3>\r\n
    # grub2-mkconfig -o \/boot\/grub2\/grub.cfg<\/code><\/p>\r\n
    \uff11\uff11\uff0e\u79fb\u884c\u5148HDD\u306bgrub\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b<\/h3>\r\n
    # grub2-install \/dev\/vdb<\/code><\/p>\r\n
    \uff11\uff12\uff0e\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3057\u3001\u79fb\u884c\u5143\u30c7\u30a3\u30b9\u30af\u3092\u53d6\u308a\u9664\u3044\u305f\u3089\u8d77\u52d5\u78ba\u8a8d\u3092\u884c\u3046<\/h3>\r\n
    \u7121\u4e8b\u8d77\u52d5\u78ba\u8a8d\u5b8c\u4e86<\/p>\r\n
    \"\"<\/a><\/p>\r\n
    \u4ee5\u4e0a<\/p>\r\n","protected":false},"excerpt":{"rendered":"
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