08-18-2012
If you have a reliable and fast network code 1 is quite an acceptable method to use and doesn't require additional space.
If you need to go with code 2 method try and run everything from 1 script on the source machine so you don't have to wait around for archive and network copy to finish so you can start extract. Try and avoid putting .tar file in the same directory you are archiving as tar will pick up it's on file and try to read this in. It's best from a performance viewpoint to have .tar file on a different physical disk.
Pick a small subdirectory (with a small size and a small directory tree) to test scripts with, as you don't want the script running for hours and then find the
code 1:
Source server shell:
--------------------
-- change directory
cd /usr/local/adm
-- copy source filesystem to target file system tar & extract to target server
tar cf - . | ssh 192.168.10.2 'cd /usr/local/adm/source.tar ; tar xf -'
Code 2 :
Source server shell:
--------------------
-- change directory
cd /usr/local/adm
-- Avoid writing to same directory you are archiving as tar will pickup the tar file and try to tar this causing issues. I'd suggest putting the zip in another filesystem preferablly on physically seperate disks for more performance.
tar cf /scratch/source.tar .
-- copy from source to targer server , how to modify the based on server
scp /scratch/source.tar 192.168.10.2:/scratch/source.tar
-- fire restore off on target machine (best done in this script as you can run it unattended, ie you wount have to be around at midnight when scp finishes)
ssh 192.168.10.2 'cd /usr/local/adm/ ; tar xf /scratch/source.tar'
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