Johnston, James C. (GRC-RXP0): > I've got a large (~16 TB) file server that I want to back up onto a > ~40TB RAID array connected to the fileserver via fiber channel (so > there is no backup traffic on our network).
Ok, I've never done stuff at that size. Just as a warning to read on ;-).
> I need to ease into the backups - I don't want to try to back up the
> whole file system at once because everything will grind to a stop
> trying to move that much data. I want to distribute the backups over
> 4 successive weekends, doing about 5Tb each time.
First thought, won't it grind with 5TB also, just for 1/3 of the time for a
full run?
Second thought, if you limit backup bandwidth, you should be able to limit
effects. If it can't be done on Bacula's level, qos'ing stuff on network
level should yield the same effect.
If the fs to backup can deliver n mb/s, then limiting Bacula's slot to
let's say n/5 mb/s should minimize the effect on normal operations.
Kindest regards,
Dietz
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