#以下以Xshell的日志记录系统直接记录.上面添加了一些个人理解的注释 [BEGIN] 2016/9/13 9:22:24#先查看下硬盘的情况.[root@iZ23h637rtdZ ~]# fdisk -lDisk /dev/vda: 64.4 GB, 64424509440 bytes255 heads, 63 sectors/track, 7832 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/vda1   *           1        7833    62912512   83  LinuxDisk /dev/vdb: 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: 0x3a7be7cb   Device Boot      Start         End      Blocks   Id  System/dev/vdb1               1       65270   524281243+  8e  Linux LVM#上面这里显示已经有LVM.但是为了方便演示. 下面先将这个删除掉了[root@iZ23h637rtdZ ~]# fdisk /dev/vdbWARNING: DOS-compatible mode is deprecated. It‘s strongly recommended to         switch off the mode (command ‘c‘) and change display units to         sectors (command ‘u‘).Command (m for help): pDisk /dev/vdb: 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: 0x3a7be7cb   Device Boot      Start         End      Blocks   Id  System/dev/vdb1               1       65270   524281243+  8e  Linux LVMCommand (m for help): dSelected partition 1Command (m for help): pDisk /dev/vdb: 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: 0x3a7be7cb   Device Boot      Start         End      Blocks   Id  SystemCommand (m for help): nCommand action   e   extended   p   primary partition (1-4)pPartition number (1-4): 1First cylinder (1-65270, default 1): Using default value 1Last cylinder, +cylinders or +size{K,M,G} (1-65270, default 65270): Using default value 65270Command (m for help): pDisk /dev/vdb: 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: 0x3a7be7cb   Device Boot      Start         End      Blocks   Id  System/dev/vdb1               1       65270   524281243+  83  Linux#此处使用t来修改格式.由于是需要LVM.所以需要改为8e的格式.Command (m for help): tSelected partition 1Hex code (type L to list codes): 8eChanged system type of partition 1 to 8e (Linux LVM)Command (m for help): pDisk /dev/vdb: 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: 0x3a7be7cb   Device Boot      Start         End      Blocks   Id  System/dev/vdb1               1       65270   524281243+  8e  Linux LVMCommand (m for help): wThe partition table has been altered!Calling ioctl() to re-read partition table.Syncing disks.[root@iZ23h637rtdZ ~]# partprobe Warning: WARNING: the kernel failed to re-read the partition table on /dev/vda (Device or resource busy).  
As a result, it may not reflect all of your changes until after reboot.[root@iZ23h637rtdZ ~]# fdisk -lDisk /dev/vda: 64.4 GB, 64424509440 bytes255 heads, 63 sectors/track, 7832 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/vda1   *           1        7833    62912512   83  LinuxDisk /dev/vdb: 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: 0x3a7be7cb   Device Boot      Start         End      Blocks   Id  System/dev/vdb1               1       65270   524281243+  8e  Linux LVM[root@iZ23h637rtdZ ~]# pvscan   No matching physical volumes found#先建pv.后面接具体的划分的路径.[root@iZ23h637rtdZ ~]# pvcreate /dev/vdb1  Physical volume "/dev/vdb1" successfully created[root@iZ23h637rtdZ ~]# pvscan   PV /dev/vdb1                      lvm2 [499.99 GiB]  Total: 1 [499.99 GiB] / in use: 0 [0   ] / in no VG: 1 [499.99 GiB][root@iZ23h637rtdZ ~]# pvdisplay   "/dev/vdb1" is a new physical volume of "499.99 GiB"  --- NEW Physical volume ---  PV Name               /dev/vdb1  VG Name                 PV Size               499.99 GiB  Allocatable           NO  PE Size               0     Total PE              0  Free PE               0  Allocated PE          0  PV UUID               GOeBQF-iCCD-n7i7-Y4DT-U5PE-tjHK-B9Z3CL   #再建VG.由于是直接使用整个划分的区块,所以直接跟区块名 /dev/vdb1,前面接的是vg名称,这个随便命名的.[root@iZ23h637rtdZ ~]# vgcreate mailbox_vg /dev/vdb1  Volume group "mailbox_vg" successfully created[root@iZ23h637rtdZ ~]# vgscan   Reading all physical volumes.  This may take a while...  Found volume group "mailbox_vg" using metadata type lvm2[root@iZ23h637rtdZ ~]# pvscan   PV /dev/vdb1   VG mailbox_vg   lvm2 [499.99 GiB / 499.99 GiB free]  Total: 1 [499.99 GiB] / in use: 1 [499.99 GiB] / in no VG: 0 [0   ][root@iZ23h637rtdZ ~]# vgdisplay   --- Volume group ---  VG Name               mailbox_vg  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               499.99 GiB  PE Size               4.00 MiB  Total PE              127998  Alloc PE / Size       0 / 0     Free  PE / Size       127998 / 499.99 GiB  VG UUID               JjdDER-Y1OK-ICwZ-3FgC-cry2-bZYl-SqD3RP   #下面需要创建LV.-l后面接的是pe的数量.这个可使用上面的vgdisplay的命令来查看.#然后后面接lv的名称.也是可以随便命名,但是个人建议这里写个可以区分的.要不到时难分清楚.[root@iZ23h637rtdZ ~]# lvcreate -l 127998 -n mailbox_lv mailbox_vg  Logical volume "mailbox_lv" created[root@iZ23h637rtdZ ~]# lvdisplay   --- Logical volume ---  LV Path                /dev/mailbox_vg/mailbox_lv  LV Name                mailbox_lv  VG Name                mailbox_vg  LV UUID                VPA4HE-22B4-gZc0-Qo8V-TO1C-tKaF-AT8s5T  LV Write Access        read/write  LV Creation host, time iZ23h637rtdZ, 2016-09-13 09:25:34 +0800  LV Status              available  # open                 0  LV Size                499.99 GiB  Current LE             127998  Segments               1  Allocation             inherit  Read ahead sectors     auto  - currently set to     256  Block device           253:0   [root@iZ23h637rtdZ ~]# fdisk -lDisk /dev/vda: 64.4 GB, 64424509440 bytes255 heads, 63 sectors/track, 7832 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/vda1   *           1        7833    62912512   83  LinuxDisk /dev/vdb: 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: 0x3a7be7cb   Device Boot      Start         End      Blocks   Id  System/dev/vdb1               1       65270   524281243+  8e  Linux LVMDisk /dev/mapper/mailbox_vg-mailbox_lv: 536.9 GB, 536862523392 bytes255 heads, 63 sectors/track, 65269 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00000000#建好了.进行格式化[root@iZ23h637rtdZ ~]# mkfs -t ext4 /dev/mailbox_vg/mailbox_lv 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 blocks32768000 inodes, 131069952 blocks6553497 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=42949672964000 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 34 mounts or180 days, whichever comes first.  Use tune2fs -c or -i to override.#创建挂载目录,进行挂载.[root@iZ23h637rtdZ ~]# mkdir /mail_mailbox[root@iZ23h637rtdZ ~]# mount /dev/Display all 179 possibilities? (y or n)[root@iZ23h637rtdZ ~]# mount /dev/mailbox_vg/mailbox_lv /mail_mailbox/[root@iZ23h637rtdZ ~]# df -hFilesystem            Size  Used Avail Use% Mounted on/dev/vda1              59G  1.9G   55G   4% /tmpfs                 3.9G     0  3.9G   0% /dev/shm/dev/mapper/mailbox_vg-mailbox_lv                      493G   70M  467G   1% /mail_mailbox#使用vim修改fstab的文件.让其开机自动的挂载 .以下是后面cat /etc/fstab的内容补上,这里vim没有记录--------------------------------------------------------------------------------------[root@iZ23h637rtdZ ~]# cat /etc/fstab ## /etc/fstab# Created by anaconda on Thu Aug 14 21:16:42 2014## Accessible filesystems, by reference, are maintained under ‘/dev/disk‘# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info#UUID=94e4e384-0ace-437f-bc96-057dd64f42ee / ext4 defaults,barrier=0 1 1tmpfs                   /dev/shm                tmpfs   defaults        0 0devpts                  /dev/pts                devpts  gid=5,mode=620  0 0sysfs                   /sys                    sysfs   defaults        0 0proc                    /proc                   proc    defaults        0 0/dev/mailbox_vg/mailbox_lv    /mail_mailbox    ext4    defaults    1 2[root@iZ23h637rtdZ ~]# --------------------------------------------------------------------------------------[root@iZ23h637rtdZ ~]# vim /etc/fstab #下面进行umount然后再mount -a测试一下fstab是否正常写[root@iZ23h637rtdZ ~]# umount /mail_mailbox/[root@iZ23h637rtdZ ~]# df -hFilesystem      Size  Used Avail Use% Mounted on/dev/vda1        59G  1.9G   55G   4% /tmpfs           3.9G     0  3.9G   0% /dev/shm[root@iZ23h637rtdZ ~]# mount -a[root@iZ23h637rtdZ ~]# df -hFilesystem            Size  Used Avail Use% Mounted on/dev/vda1              59G  1.9G   55G   4% /tmpfs                 3.9G     0  3.9G   0% /dev/shm/dev/mapper/mailbox_vg-mailbox_lv                      493G   70M  467G   1% /mail_mailbox[END] 2016/9/13 9:32:31

#fdisk /dev/vdb #pvcreate /dev/vdb1#vgcreate mailbox_vg /dev/vdb1#lvcreate -l 127998 -n mailbox_lv mailbox_vg#mkfs -t ext4 /dev/mailbox_vg/mailbox_lv #mkdir /mail_mailbox#mount /dev/mailbox_vg/mailbox_lv /mail_mailbox/