周末班授課記錄2-未整理（LVM的配置步驟）

gdlc

fdisk /dev/hdc
Command (m for help): p
Disk /dev/hdc: 40.0 GB, 40007761920 bytes
16 heads, 63 sectors/track, 77520 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/hdc1               1       19377     9765976+  8e  Linux LVM
/dev/hdc2           19378       77520    29304072    5  Extended
/dev/hdc5           19378       29066     4883224+  83  Linux
Command (m for help): n
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
l
First cylinder (29067-77520, default 29067):
Using default value 29067
Last cylinder or +size or +sizeM or +sizeK (29067-77520, default 77520): +5g
Command (m for help): n
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
l
First cylinder (38756-77520, default 38756):
Using default value 38756
Last cylinder or +size or +sizeM or +sizeK (38756-77520, default 77520): +5g
Command (m for help): p
Disk /dev/hdc: 40.0 GB, 40007761920 bytes
16 heads, 63 sectors/track, 77520 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/hdc1               1       19377     9765976+  8e  Linux LVM
/dev/hdc2           19378       77520    29304072    5  Extended
/dev/hdc5           19378       29066     4883224+  83  Linux
/dev/hdc6           29067       38755     4883224+  83  Linux
/dev/hdc7           38756       48444     4883224+  83  Linux
Command (m for help): t
Partition number (1-7): 7
Hex code (type L to list codes): fd
Changed system type of partition 7 to fd (Linux raid autodetect)
Command (m for help): t
Partition number (1-7): 6
Hex code (type L to list codes): fd
Changed system type of partition 6 to fd (Linux raid autodetect)
Command (m for help): t
Partition number (1-7): 5
Hex code (type L to list codes): fd
Changed system type of partition 5 to fd (Linux raid autodetect)
Command (m for help): p
Disk /dev/hdc: 40.0 GB, 40007761920 bytes
16 heads, 63 sectors/track, 77520 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/hdc1               1       19377     9765976+  8e  Linux LVM
/dev/hdc2           19378       77520    29304072    5  Extended
/dev/hdc5           19378       29066     4883224+  fd  Linux raid autodetect
/dev/hdc6           29067       38755     4883224+  fd  Linux raid autodetect
/dev/hdc7           38756       48444     4883224+  fd  Linux raid autodetect
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@test25 ~]# partprobe
[root@test25 ~]# cat /proc/partitions
major minor  #blocks  name
   3     0   39070080 hda
   3     1   30668053 hda1
   3     2    8393962 hda2
  22     0   39070080 hdc
  22     1    9765976 hdc1
  22     2          1 hdc2
  22     5    4883224 hdc5
  22     6    4883224 hdc6
  22     7    4883224 hdc7
[root@test25 ~]# pvcreate /dev/hdc1
  Physical volume "/dev/hdc1" successfully created
[root@test25 ~]# vgcreate vg00 /dev/hdc1
  Volume group "vg00" successfully created
[root@test25 ~]# lvcreate -L +5G -n data vg00
  Logical volume "data" created
[root@test25 ~]# lvscan
  ACTIVE            '/dev/vg00/data' [5.00 GB] inherit
[root@test25 ~]# vgscan
  Reading all physical volumes.  This may take a while...
  Found volume group "vg00" using metadata type lvm2
[root@test25 ~]# pvscan
  PV /dev/hdc1   VG vg00   lvm2 [9.31 GB / 4.31 GB free]
  Total: 1 [9.31 GB] / in use: 1 [9.31 GB] / in no VG: 0 [0   ]
[root@test25 ~]# mkfs.ext3 /dev/vg00/data
mke2fs 1.35 (28-Feb-2004)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
655360 inodes, 1310720 blocks
65536 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=1342177280
40 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information:
done
This filesystem will be automatically checked every 31 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
[root@test25 ~]#
[root@test25 ~]# mkdir /media/lvm1
[root@test25 ~]# mount /dev/vg00/data /media/lvm1/
[root@test25 ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda1              29G  6.5G   21G  24% /
none                 1014M     0 1014M   0% /dev/shm
172.16.100.98:/linuxos
                       39G   28G  9.1G  76% /mnt
/dev/mapper/vg00-data
                      5.0G   43M  4.7G   1% /media/lvm1
[root@test25 ~]# lvextend -L +2G /dev/vg00/data
  Extending logical volume data to 7.00 GB
  Logical volume data successfully resized
[root@test25 ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda1              29G  6.5G   21G  24% /
none                 1014M     0 1014M   0% /dev/shm
172.16.100.98:/linuxos
                       39G   28G  9.1G  76% /mnt
/dev/mapper/vg00-data
                      5.0G   43M  4.7G   1% /media/lvm1
[root@test25 ~]# ext2online /dev/vg00/data
ext2online v1.1.18 - 2001/03/18 for EXT2FS 0.5b
[root@test25 ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda1              29G  6.5G   21G  24% /
none                 1014M     0 1014M   0% /dev/shm
172.16.100.98:/linuxos
                       39G   28G  9.1G  76% /mnt
/dev/mapper/vg00-data
                      6.9G   44M  6.5G   1% /media/lvm1


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