{"id":1440,"date":"2015-06-25T23:55:24","date_gmt":"2015-06-25T15:55:24","guid":{"rendered":"http:\/\/blog.dynox.cn\/?p=1440"},"modified":"2015-06-26T00:01:24","modified_gmt":"2015-06-25T16:01:24","slug":"ldm-ldmtool","status":"publish","type":"post","link":"https:\/\/blog.dynox.cn\/?p=1440","title":{"rendered":"LDM & ldmtool"},"content":{"rendered":"

\u5728Windows\u7cfb\u7edf\u4e2d\u521b\u5efa\u4e86\u4e00\u4e2a\u5e26\u533a\u52a8\u6001\u5377\uff0c\u5176\u5b9e\u5c31\u662f\u7528\u4e24\u4e2a\u78c1\u76d8\u4ee5RAID0\u65b9\u5f0f\u6574\u5408\u4e5f\u4e00\u4e2a\u5927\u78c1\u76d8\u3002\u4f46\u542f\u52a8\u8fdb\u5165Ubuntu (14.04) \u7cfb\u7edf\u540e\u5e76\u4e0d\u80fd\u6b63\u786e\u8bc6\u522b\u3002\u4e0b\u56fe\u662f\u6211\u5728\u6d4b\u8bd5\u7cfb\u7edf\u4e2d\u521b\u5efa\u4e86\u4e00\u4e2a\u5e26\u533a\u5377E:\uff08\u75312\u4e2a\u76d8\u6784\u6210\uff09\u548c\u4e00\u4e2aRAID5\u5377F:\uff08\u75314\u4e2a\u76d8\u6784\u6210\uff09\uff1a<\/font><\/p>

\"LDM-RAID-Volumes\"<\/a><\/p>

\u8fd9\u4e24\u4e2a\u7531Windows\u7cfb\u7edf\u521b\u5efa\u7684\u52a8\u6001\u5377\uff0c\u662fLDM\u683c\u5f0f\uff08Logical Disk Manager\uff09\uff0cLinux\u7cfb\u7edf\u4e2d\u4e0d\u80fd\u6b63\u786e\u8bc6\u522b\u3002\u6700\u521d\u6211\u5c1d\u8bd5\u7528mdadm\u5f3a\u5236\u52a0\u8f7d\u5e26\u533a\u5377\uff0c\u5206\u522b\u8bd5\u4e8664K\u53ca128K chunk\uff0c\u4f46\u5168\u90e8\u65e0\u6548\uff0c\u5c1d\u8bd5\u529e\u6cd5\u5982\u4e0b\uff1a<\/font>
root@ubuntu:~# mdadm --build \/dev\/md0 --level=0 --chunk=128 --raid-devices=2 \/dev\/sd[cd]3
mdadm: array \/dev\/md0 built and started.
root@ubuntu:~# mdadm --detail \/dev\/md0
\/dev\/md0:
        Version :
  Creation Time : Thu Jun 25 16:08:11 2015
     Raid Level : raid0
     Array Size : 41680640 (39.75 GiB 42.68 GB)
   Raid Devices : 2
  Total Devices : 2<\/p>

          State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
  Spare Devices : 0<\/p>

     Chunk Size : 128K<\/p>

    Number   Major   Minor   RaidDevice State
       0       8       35        0      active sync   \/dev\/sdc3
       1       8       51        1      active sync   \/dev\/sdd3
root@ubuntu:~# tune2fs -l \/dev\/md0
tune2fs 1.42.9 (4-Feb-2014)
tune2fs: Bad magic number in super-block while trying to open \/dev\/md0
Couldn't find valid filesystem superblock.
root@ubuntu:~# mdadm -S \/dev\/md0
mdadm: stopped \/dev\/md0
root@ubuntu:~# mdadm --build \/dev\/md0 --level=0 --chunk=128 --raid-devices=2 \/dev\/sd[dc]3
mdadm: array \/dev\/md0 built and started.
root@ubuntu:~# mdadm --detail \/dev\/md0
\/dev\/md0:
        Version :
  Creation Time : Thu Jun 25 16:08:57 2015
     Raid Level : raid0
     Array Size : 41680640 (39.75 GiB 42.68 GB)
   Raid Devices : 2
  Total Devices : 2<\/p>

          State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
  Spare Devices : 0<\/p>

     Chunk Size : 128K<\/p>

    Number   Major   Minor   RaidDevice State
       0       8       51        0      active sync   \/dev\/sdd3
       1       8       35        1      active sync   \/dev\/sdc3
root@ubuntu:~# tune2fs -l \/dev\/md0
tune2fs 1.42.9 (4-Feb-2014)
tune2fs: Bad magic number in super-block while trying to open \/dev\/md0
Couldn't find valid filesystem superblock.
root@ubuntu:~# mdadm -S \/dev\/md0
mdadm: stopped \/dev\/md0
root@ubuntu:~#<\/p>

\u540e\u6765\u51e0\u7ecf\u641c\u7d22\uff0c\u53d1\u73b0\u89e3\u51b3\u65b9\u6848\u539f\u6765\u5f88\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5b89\u88c5ldmtool\u3002<\/font><\/p>

root@ubuntu:~# parted -l
Model: VMware, VMware Virtual S (scsi)
Disk \/dev\/sda: 85.9GB
Sector size (logical\/physical): 512B\/512B
Partition Table: msdos<\/p>

Number  Start   End     Size    Type     File system     Flags
1      1049kB  1000MB  999MB   primary  ext2            boot
2      1000MB  81.0GB  80.0GB  primary  xfs
3      81.0GB  85.9GB  4898MB  primary  linux-swap(v1)<\/p>


Model: VMware, VMware Virtual S (scsi)
Disk \/dev\/sdb: 42.9GB
Sector size (logical\/physical): 512B\/512B
Partition Table: msdos<\/p>

Number  Start   End     Size    Type     File system  Flags
1      1049kB  42.9GB  42.9GB  primary  ext4<\/p>


Model: VMware, VMware Virtual S (scsi)
Disk \/dev\/sdc: 21.5GB
Sector size (logical\/physical): 512B\/512B
Partition Table: gpt<\/p>

Number  Start   End     Size    File system  Name                          Flags
1      17.4kB  1066kB  1049kB               LDM metadata partition
2      1066kB  134MB   133MB                Microsoft reserved partition  msftres
3      134MB   21.5GB  21.3GB               LDM data partition<\/p>


Model: VMware, VMware Virtual S (scsi)
Disk \/dev\/sdd: 21.5GB
Sector size (logical\/physical): 512B\/512B
Partition Table: gpt<\/p>

Number  Start   End     Size    File system  Name                          Flags
1      17.4kB  1066kB  1049kB               LDM metadata partition
2      1066kB  134MB   133MB                Microsoft reserved partition  msftres
3      134MB   21.5GB  21.3GB               LDM data partition<\/p>


Model: VMware, VMware Virtual S (scsi)
Disk \/dev\/sde: 64.4GB
Sector size (logical\/physical): 512B\/512B
Partition Table: gpt<\/p>

Number  Start   End     Size    File system  Name                          Flags
1      17.4kB  1066kB  1049kB               LDM metadata partition
2      1066kB  134MB   133MB                Microsoft reserved partition  msftres
3      134MB   64.4GB  64.3GB               LDM data partition<\/p>


Model: VMware, VMware Virtual S (scsi)
Disk \/dev\/sdf: 64.4GB
Sector size (logical\/physical): 512B\/512B
Partition Table: gpt<\/p>

Number  Start   End     Size    File system  Name                          Flags
1      17.4kB  1066kB  1049kB               LDM metadata partition
2      1066kB  134MB   133MB                Microsoft reserved partition  msftres
3      134MB   64.4GB  64.3GB               LDM data partition<\/p>


Model: VMware, VMware Virtual S (scsi)
Disk \/dev\/sdg: 64.4GB
Sector size (logical\/physical): 512B\/512B
Partition Table: gpt<\/p>

Number  Start   End     Size    File system  Name                          Flags
1      17.4kB  1066kB  1049kB               LDM metadata partition
2      1066kB  134MB   133MB                Microsoft reserved partition  msftres
3      134MB   64.4GB  64.3GB               LDM data partition<\/p>


Model: VMware, VMware Virtual S (scsi)
Disk \/dev\/sdh: 64.4GB
Sector size (logical\/physical): 512B\/512B
Partition Table: gpt<\/p>

Number  Start   End     Size    File system  Name                          Flags
1      17.4kB  1066kB  1049kB               LDM metadata partition
2      1066kB  134MB   133MB                Microsoft reserved partition  msftres
3      134MB   64.4GB  64.3GB               LDM data partition
<\/p>

root@ubuntu:~# ldmtool scan
[
  "3ffea520-1b24-11e5-8565-000c293dbd64"
]
root@ubuntu:~# ldmtool show diskgroup 3ffea520-1b24-11e5-8565-000c293dbd64
{
  "name" : "WIN-FB20IXK90MU-Dg0",
  "guid" : "3ffea520-1b24-11e5-8565-000c293dbd64",
  "volumes" : [
    "Volume2",
    "Volume1"
  ],
  "disks" : [
    "Disk1",
    "Disk2",
    "Disk3",
    "Disk4",
    "Disk6",
    "Disk5"
  ]
}
root@ubuntu:~# ldmtool show volume 3ffea520-1b24-11e5-8565-000c293dbd64 Volume1
{
  "name" : "Volume1",
  "type" : "RAID5",
  "size" : 376688640,
  "chunk-size" : 128,
  "hint" : "F:",
  "partitions" : [
    "Disk1-01",
    "Disk2-01",
    "Disk3-01",
    "Disk4-01"
  ]
}
root@ubuntu:~# ldmtool show volume 3ffea520-1b24-11e5-8565-000c293dbd64 Volume2
{
  "name" : "Volume2",
  "type" : "striped",
  "size" : 83353600,
  "chunk-size" : 128,
  "hint" : "E:",
  "partitions" : [
    "Disk5-01",
    "Disk6-01"
  ]
}
root@ubuntu:~# ldmtool show partition 3ffea520-1b24-11e5-8565-000c293dbd64 Disk1-01
{
  "name" : "Disk1-01",
  "start" : 2014,
  "size" : 125562880,
  "disk" : "Disk1"
}
root@ubuntu:~# ldmtool show partition 3ffea520-1b24-11e5-8565-000c293dbd64 Disk2-01
{
  "name" : "Disk2-01",
  "start" : 2014,
  "size" : 125562880,
  "disk" : "Disk2"
}
root@ubuntu:~# ldmtool show partition 3ffea520-1b24-11e5-8565-000c293dbd64 Disk3-01
{
  "name" : "Disk3-01",
  "start" : 2014,
  "size" : 125562880,
  "disk" : "Disk3"
}
root@ubuntu:~# ldmtool show partition 3ffea520-1b24-11e5-8565-000c293dbd64 Disk4-01
{
  "name" : "Disk4-01",
  "start" : 2014,
  "size" : 125562880,
  "disk" : "Disk4"
}
root@ubuntu:~# ldmtool show partition 3ffea520-1b24-11e5-8565-000c293dbd64 Disk5-01
{
  "name" : "Disk5-01",
  "start" : 2014,
  "size" : 41676800,
  "disk" : "Disk5"
}
root@ubuntu:~# ldmtool show partition 3ffea520-1b24-11e5-8565-000c293dbd64 Disk6-01
{
  "name" : "Disk6-01",
  "start" : 2014,
  "size" : 41676800,
  "disk" : "Disk6"
}
<\/p>

\u7528ldmtool\u89e3\u6790\u5e76\u521b\u5efa\u52a8\u6001\u5377\u53ea\u9700\u8981\u4e00\u4e2a\u7b80\u5355\u547d\u4ee4<\/font>\uff1a<\/p>

root@ubuntu:~# ldmtool create all
[
  "ldm_vol_WIN-FB20IXK90MU-Dg0_Volume2",
  "ldm_vol_WIN-FB20IXK90MU-Dg0_Volume1"
]<\/p>

root@ubuntu:~# ls -l \/dev\/mapper\/
total 0
crw------- 1 root root 10, 236 Jun 25 16:29 control
lrwxrwxrwx 1 root root       7 Jun 25 16:29 ldm_part_WIN-FB20IXK90MU-Dg0_Disk1-01 -> ..\/dm-1
lrwxrwxrwx 1 root root       7 Jun 25 16:29 ldm_part_WIN-FB20IXK90MU-Dg0_Disk2-01 -> ..\/dm-2
lrwxrwxrwx 1 root root       7 Jun 25 16:29 ldm_part_WIN-FB20IXK90MU-Dg0_Disk3-01 -> ..\/dm-3
lrwxrwxrwx 1 root root       7 Jun 25 16:29 ldm_part_WIN-FB20IXK90MU-Dg0_Disk4-01 -> ..\/dm-4
lrwxrwxrwx 1 root root       7 Jun 25 16:29 ldm_vol_WIN-FB20IXK90MU-Dg0_Volume1 -> ..\/dm-5
lrwxrwxrwx 1 root root       7 Jun 25 16:29 ldm_vol_WIN-FB20IXK90MU-Dg0_Volume2 -> ..\/dm-0<\/p>

root@ubuntu:~# ls -l \/dev\/dm*
brw-rw---- 1 root disk 252, 0 Jun 25 16:29 \/dev\/dm-0
brw-rw---- 1 root disk 252, 1 Jun 25 16:29 \/dev\/dm-1
brw-rw---- 1 root disk 252, 2 Jun 25 16:29 \/dev\/dm-2
brw-rw---- 1 root disk 252, 3 Jun 25 16:29 \/dev\/dm-3
brw-rw---- 1 root disk 252, 4 Jun 25 16:29 \/dev\/dm-4
brw-rw---- 1 root disk 252, 5 Jun 25 16:29 \/dev\/dm-5
root@ubuntu:~#
root@ubuntu:~# tune2fs -l \/dev\/dm-0
tune2fs 1.42.9 (4-Feb-2014)
Filesystem volume name:   <none>
Last mounted on:          <not available>
Filesystem UUID:          22a45231-ede2-4c60-9c93-ee841ae2f2ee
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype extent flex
_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags:         signed_directory_hash
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              2605056
Block count:              10419200
Reserved block count:     520960
Free blocks:              10210674
Free inodes:              2605045
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      1021
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8192
Inode blocks per group:   512
RAID stride:              16
RAID stripe width:        32
Flex block group size:    16
Filesystem created:       Thu Jun 25 15:58:29 2015
Last mount time:          n\/a
Last write time:          Thu Jun 25 15:58:31 2015
Mount count:              0
Maximum mount count:      -1
Last checked:             Thu Jun 25 15:58:29 2015
Check interval:           0 (<none>)
Lifetime writes:          132 MB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:               256
Required extra isize:     28
Desired extra isize:      28
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      a472f2f6-a27b-4362-91e2-dce4ad48a700
Journal backup:           inode blocks
root@ubuntu:~# tune2fs -l \/dev\/dm-5
tune2fs 1.42.9 (4-Feb-2014)
Filesystem volume name:   <none>
Last mounted on:          <not available>
Filesystem UUID:          f0655359-b2e0-4732-8df0-b0ab24918ec1
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype extent flex
_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags:         signed_directory_hash
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              11771904
Block count:              47086080
Reserved block count:     2354304
Free blocks:              46299313
Free inodes:              11771893
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      1012
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8192
Inode blocks per group:   512
RAID stride:              16
RAID stripe width:        48
Flex block group size:    16
Filesystem created:       Thu Jun 25 15:13:55 2015
Last mount time:          n\/a
Last write time:          Thu Jun 25 15:14:21 2015
Mount count:              6
Maximum mount count:      -1
Last checked:             Thu Jun 25 15:14:21 2015
Check interval:           0 (<none>)
Lifetime writes:          133 MB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:               256
Required extra isize:     28
Desired extra isize:      28
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      88ddd8a2-506a-4e9b-9109-ce9c171b2607
Journal backup:           inode blocks<\/p>

\u81f3\u6b64\u5c31\u53ef\u4ee5\u81ea\u7531\u8bbf\u95ee \/dev\/dm-0\u548c\/dev\/dm-5\u4e24\u4e2a\u8bbe\u5907\u5377\u4e86\u3002\u4e0d\u8fc7\u8fd8\u8981\u8bf4\u7684\u662f\uff0cldmtool\u662f\u901a\u8fc7DM (Device Mapper) \u4ea7\u751f\u7684RAID\u5377\uff08\u548cLVM\u4f7f\u7528\u7684\u662f\u540c\u6837\u7684\u673a\u5236\uff09\uff0c\u800c\u4e0d\u662f\u6700\u5e38\u7528\u7684MD\u65b9\u5f0f(\u5373Multiple Devices)\uff0c\u7279\u522b\u5bf9\u4e8eRAID5\/RAID6\u6b64\u7c7b\u7684\u6570\u636e\u5377\uff0cMD Raid\u505a\u4e86\u8f83\u591a\u7684\u4f18\u5316\uff0c\u9664\u6027\u80fd\u66f4\u597d\u4e4b\u5916\uff0c\u7a33\u5b9a\u6027\u5e94\u8be5\u4e5f\u597d\u4e8eDevice Mapper\u65b9\u5f0f\u3002<\/font><\/p>

\u53c2\u8003\u9605\u8bfb\uff1a
1\uff0chttp:\/\/manpages.ubuntu.com\/manpages\/trusty\/man1\/ldmtool.1.html<\/a>
2\uff0chttps:\/\/github.com\/mdbooth\/libldm<\/a>
3\uff0chttps:\/\/notesbytom.wordpress.com\/2012\/06\/14\/linux-support-for-windows-dynamic-disks\/<\/a>
4\uff0chttp:\/\/stackoverflow.com\/questions\/8427372\/windows-spanned-disks-ldm-restoration-with-linux\/22108676#22108676<\/a> <ldmtool\u51fa\u73b0\u4e4b\u524d\u7684\u529e\u6cd5 \"Smile\"><\/font><\/p><\/div>","protected":false},"excerpt":{"rendered":"

\u5728Windows\u7cfb\u7edf\u4e2d\u521b\u5efa\u4e86\u4e00\u4e2a\u5e26\u533a\u52a8\u6001\u5377\uff0c\u5176\u5b9e\u5c31\u662f\u7528\u4e24\u4e2a\u78c1\u76d8\u4ee5RAID0\u65b9\u5f0f\u6574\u5408\u4e5f\u4e00\u4e2a\u5927\u78c1\u76d8\u3002\u4f46\u542f\u52a8\u8fdb\u5165Ub […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[9],"tags":[567,566,569,561,562,565,564,568,563],"views":23440,"_links":{"self":[{"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/posts\/1440"}],"collection":[{"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1440"}],"version-history":[{"count":2,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/posts\/1440\/revisions"}],"predecessor-version":[{"id":1443,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/posts\/1440\/revisions\/1443"}],"wp:attachment":[{"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}