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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