Linux lvm 管理

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[root@iZ23j4eax1iZ ~]# pvdisplay [root@iZ23j4eax1iZ ~]# fdisk -lDisk /dev/xvda: 21.5 GB, 21474836480 bytes255 heads, 63 sectors/track, 2610 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00078f9c    Device Boot      Start         End      Blocks   Id  System/dev/xvda1   *           1        2611    20970496   83  LinuxDisk /dev/xvdb: 1073.7 GB, 1073741824000 bytes255 heads, 63 sectors/track, 130541 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00000000Disk /dev/xvdc: 536.9 GB, 536870912000 bytes255 heads, 63 sectors/track, 65270 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00000000[root@iZ23j4eax1iZ ~]# pvcreate /dev/xvdc  Physical volume "/dev/xvdc" successfully created[root@iZ23j4eax1iZ ~]# pvdisplay   "/dev/xvdc" is a new physical volume of "500.00 GiB"  --- NEW Physical volume ---  PV Name               /dev/xvdc  VG Name                 PV Size               500.00 GiB  Allocatable           NO  PE Size               0     Total PE              0  Free PE               0  Allocated PE          0  PV UUID               sZ87zR-QwaO-5Ibi-2122-e2GK-B3tL-Y8SnuI   [root@iZ23j4eax1iZ ~]# vgcreate vg01 /dev/^C[root@iZ23j4eax1iZ ~]# pvdisplay   "/dev/xvdc" is a new physical volume of "500.00 GiB"  --- NEW Physical volume ---  PV Name               /dev/xvdc  VG Name                 PV Size               500.00 GiB  Allocatable           NO  PE Size               0     Total PE              0  Free PE               0  Allocated PE          0  PV UUID               sZ87zR-QwaO-5Ibi-2122-e2GK-B3tL-Y8SnuI   [root@iZ23j4eax1iZ ~]# vgcreate vg01 /dev/xvdc   Volume group "vg01" successfully created[root@iZ23j4eax1iZ ~]# vgdisplay   --- Volume group ---  VG Name               vg01  System ID               Format                lvm2  Metadata Areas        1  Metadata Sequence No  1  VG Access             read/write  VG Status             resizable  MAX LV                0  Cur LV                0  Open LV               0  Max PV                0  Cur PV                1  Act PV                1  VG Size               500.00 GiB  PE Size               4.00 MiB  Total PE              127999  Alloc PE / Size       0 / 0     Free  PE / Size       127999 / 500.00 GiB  VG UUID               9QFqvp-mf6O-ovy2-HXXC-v7JM-0Fp3-buRZE2   [root@iZ23j4eax1iZ ~]# lvcreate -L 500G -n lv_data01 vg01  Volume group "vg01" has insufficient free space (127999 extents): 128000 required.[root@iZ23j4eax1iZ ~]# lvcreate -L 499G -n lv_data01 vg01  Logical volume "lv_data01" created[root@iZ23j4eax1iZ ~]# mkmkdict            mkdumprd          mkfs              mkfs.ext3         mkfs.msdos        mkinitrd          mksock            mkdir             mke2fs            mkfs.cramfs       mkfs.ext4         mkfs.vfat         mklost+found      mkswap            mkdosfs           mkfifo            mkfs.ext2         mkfs.ext4dev      mkhomedir_helper  mknod             mktemp            [root@iZ23j4eax1iZ ~]# mkfsmkfs          mkfs.cramfs   mkfs.ext2     mkfs.ext3     mkfs.ext4     mkfs.ext4dev  mkfs.msdos    mkfs.vfat     [root@iZ23j4eax1iZ ~]# mkfs.ext4 /dev/vg01/lv_data01 mke2fs 1.41.12 (17-May-2010)Filesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)Stride=0 blocks, Stripe width=0 blocks32702464 inodes, 130809856 blocks6540492 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=42949672963992 block groups32768 blocks per group, 32768 fragments per group8192 inodes per groupSuperblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 102400000Writing inode tables: done                            Creating journal (32768 blocks): doneWriting superblocks and filesystem accounting information: doneThis filesystem will be automatically checked every 38 mounts or180 days, whichever comes first.  Use tune2fs -c or -i to override.[root@iZ23j4eax1iZ ~]# mkdir /data01[root@iZ23j4eax1iZ ~]# mount /dev/vg01/lv_data01 /data01[root@iZ23j4eax1iZ ~]# df -hFilesystem            Size  Used Avail Use% Mounted on/dev/xvda1             20G  1.5G   18G   8% /tmpfs                 7.8G     0  7.8G   0% /dev/shm/dev/mapper/vg01-lv_data01                      492G  198M  467G   1% /data01[root@iZ23j4eax1iZ ~]# vi /etc/rc.local
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