对MySQL进行逻辑卷备份与恢复
# pvcreate /dev/hdb5 Physical volume "/dev/hdb5" successfully created# vgcreate VolGroup01 /dev/hdb5
Volume group "VolGroup01" successfully created
用来存放数据。
# lvcreate -L 800M -n mysqldata /dev/VolGroup01
Logical volume "test1" created
用来存放日志。
# lvcreate -L 200M -n mysqlbinlog /dev/VolGroup01
Logical volume "test2" created
以下则是显示创建的LVM的信息:
# pvdisplay /dev/hdb5
--- Physical volume ---
PV Name /dev/hdb5
VG Name VolGroup01
PV> Allocatable yes
PE> Total PE 509
Free PE 259
Allocated PE 250
PV UUID 6aeXEj-MDLY-7k3B-332y-qpZX-CiIX-ME1CZy
# vgdisplay /dev/VolGroup01
--- Volume group ---
VG Name VolGroup01
System> Format lvm2
Metadata Areas 1
Metadata Sequence No37
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG>
PE> Total PE 509
Alloc PE />
FreePE /> VG UUID ux2a6e-DGQX-E05p-I0IP-75zq-TW22-M1jF2x
# lvdisplay /dev/VolGroup01
--- Logical volume ---
LV Name /dev/VolGroup01/mysqldata
VG Name VolGroup01
LV UUID KFMFgG-HhXt-1xSq-VbVh-fb20-75Am-Ag6EIP
LV Write Access read/write
LV Status available
# open 1
LV> Current LE 200
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
--- Logical volume ---
LV Name /dev/VolGroup01/mysqlbinlog
VG Name VolGroup01
LV UUID urvM12-yw24-9GT7-rWsm-kaL4-GKNd-z0deZP
LV Write Access read/write
LV Status available
# open 1
LV> Current LE 50
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:3
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