Backup PC 4.0 Request

Craig,

I realize a lot's gone into your thinking for 4.0 - I was wondering if 
it would be possible to offer some sort of "cost" parameter to the host 
configuration.  Specifically, we have local hosts (backing up via a 1GB 
Ethernet connection) and remote hosts (often backing up at 1M or 768k 
through a DSL or T1).  Right now, the parallel code doesn't allow for a 
different overhead cost for doing backups.  I was thinking you could add 
something to the code allowing for a different weighting of remote hosts.

For example, if you specify a concurrency of 5, a slow host might 
contribute 0.1, a medium host 0.5, and a fast host 1.0.  That would 
allow a bunch of slow transfers to happen, whereas fast hosts would 
count at a much higher rate (for network and I/O contention).

Something along the lines of:

    $Conf{backup_cost} = "slow";

or

    $Conf{backup_cost} = 0.1;

Would do the trick nicely.

Cheers,

David.

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