>  Hard-links cannot cross
> filesystems, so creating a second filesystem won't work. Your only
> choice would be to create a second BackupPC instance and move clients
> over to the new instance. 
> 


Well this is possible using the instructions here:

http://backuppc.wiki.sourceforge.net/move_backup_data+

or in the manual under "Copying the pool". I've started this process (moving 
several TB) but my only question is regarding the commands from the manual here:


    su __BACKUPPCUSER__
    cd NEW_TOPDIR
    mkdir pc
    cd pc
    __INSTALLDIR__/bin/BackupPC_tarPCCopy __TOPDIR__/pc | tar xvPf -


In the last command that runs BackupPC_tarPCCopy, does this perl command look 
at any of the configuration files on the local host or does it just get what it 
needs to re-generate the hard links straight from the old "pc" directory? I 
looked through the code and don't see that it does look at the local system's 
backuppc configuration files under /etc/BackupPC . 

What I'm doing is the following: I have two BackupPC servers host1 and host2. 
I'm copying the BackupPC directories from a SAN (san2) attached to host2 to the 
SAN attached to host1 (san1) . Both SANs are available to both hosts through a 
FC switch so I just umount it on host2 and re-mount it on host1. I then copy 
the cpool and pool directories to host1's san1. After this is finished I plan 
on running BackupPC_tarPCCopy on host1 (san1) against the pc directory on san2. 
Just wanted to make sure BackupPC_tarPCCopy wasn't going to look at 
host1:/etc/BackupPC/hosts and try something funny .

Finally I'll reformat san2 from xfs to jfs (xfs is very unstable on apple g5 
xserves) and then do the same thing again to move the backuppc pool, cpool, and 
pc directories back to san2.

Thanks,
Sabuj Pattanayek

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