copy large LVM volume(14TB) from one server to another
- by bruce
recently,I have to copy a very large LVM volume()rom server A to server B. Below is the filesystem of server A and server B
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server A
[root@AVDVD-Filer ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_avdvdfiler-lv_root
16T 14T 1.5T 91% /
tmpfs 3.0G 0 3.0G 0% /dev/shm
/dev/cciss/c0d0p1 194M 23M 162M 13% /boot
/dev/mapper/vg_avdvdfiler-test
2.3T 201M 2.1T 1% /test
/dev/sr0 3.3G 3.3G 0 100% /mnt
server B
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-LogVol00
20G 2.5G 16G 14% /
tmpfs 3.0G 0 3.0G 0% /dev/shm
/dev/cciss/c0d0p1 194M 23M 162M 13% /boot
/dev/mapper/VolGroup00-LogVol00
16T 133M 15T 1% /xiangao/lv1
/dev/mapper/VolGroup00-LogVol01
4.7T 190M 4.5T 1% /xiangao/lv2
I want to copy LVM volume /dev/mapper/vg_avdvdfiler-lv_root on server A to LVM volume /dev/mapper/VolGroup00-LogVol00 on server B . The server A and server B is in the same IP segment.
IN the LVM volume on server A , there is all average 500M avi wmv mp4 etc.
I tried mount /dev/mapper/vg_avdvdfiler-lv_root on server A to server B through NFS , then use cp command copy. It is clear I faild .
Because the LVM volume is too big , I do not have good idea . I hope a good solution here.
I'm a chinese, my english is very pool. sorry
thanks everyone!
