On Wed, Mar 29, 2006 at 03:37:22PM -0500, stan wrote:
> 
> I'm still struggling with bandwidth limits on a new installation. I cna't
> seem to get they new server to come anywhere close to using the bandwidth
> I've told it to use, and amstatus still says it has spare dumpers because
> it's bandwidth limited. 
> 
> Is there some good documentation as to how this feature works? Is there a
> maximum number that I can put in the config files for this (C data type size
> limit?)?


You are talking about the "netusage" parameter in amanda.conf correct?

Since I'm on shakey ground with my understanding of that parameter,
lets make sure you and I have a correct notion of what it affects.
I'm sure someone will correct any errors I make.

<uncertainty factor>
It has no effect on the bandwidth used by a dump or connection.
I.e. it is not a throttle or accelerator.  It has to do with whether
the dump of a DLE gets started or not.  Once it is started the dump
will use any and all the bandwidth it can get.

When amdump has a free dumper I think it checks the current total
net usage, not just amanda's.  Then if the usage is below the netusage
value, the dumper is assigned a task.  Otherwise the dumper sits idle
and amdump checks again later.
</uncertainty factor>

<certainty factor>
Its a beautiful day here
</certainty factor>

-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
 4455 Province Line Road        (609) 252-0159
 Princeton, NJ  08540-4322      (609) 683-7220 (fax)