创建LVM的日志记录

先上一张鸟哥LVM的图.感觉这张最清楚了。

Disk /dev/vda: 64.4 GB, 64424509440 bytes
255 heads, 63 sectors/track, 7832 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00078f9c

Device Boot Start End Blocks Id System
/dev/vda1 * 1 7833 62912512 83 Linux

Disk /dev/vdb: 536.9 GB, 536870912000 bytes
255 heads, 63 sectors/track, 65270 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x3a7be7cb

WARNING: 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): p

Device Boot Start End Blocks Id System
/dev/vdb1 1 65270 524281243+ 8e Linux LVM

Command (m for help): d
Selected partition 1

Command (m for help): p

Device Boot Start End Blocks Id System

Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-65270, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-65270, default 65270):
Using default value 65270

Command (m for help): p

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): t
Selected partition 1
Hex code (type L to list codes): 8e
Changed system type of partition 1 to 8e (Linux LVM)

Command (m for help): p

Device Boot Start End Blocks Id System
/dev/vdb1 1 65270 524281243+ 8e Linux LVM

Command (m for help): w
The partition table has been altered!

Device Boot Start End Blocks Id System
/dev/vda1 * 1 7833 62912512 83 Linux

Device Boot Start End Blocks Id System
/dev/vdb1 1 65270 524281243+ 8e Linux LVM

Disk /dev/mapper/mailbox_vg-mailbox_lv: 536.9 GB, 536862523392 bytes
255 heads, 63 sectors/track, 65269 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

[END] 2016/9/13 9:32:31

这里到此就结束的.整合一下相关的一些步骤:

#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/

创建LVM的日志记录

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