copy large LVM volume(14TB) from one server to another

Posted by bruce on Server Fault See other posts from Server Fault or by bruce
Published on 2010-05-13T15:45:49Z Indexed on 2010/05/13 15:55 UTC
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Filed under:

copy

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large

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lvm

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volume

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!

Developer IT