Amanda-Users

Re: many dumps in parallel

2005-06-20 17:59:14
Subject: Re: many dumps in parallel
From: "Stefan G. Weichinger" <sgw AT amanda DOT org>
To: amanda-users AT amanda DOT org
Date: Mon, 20 Jun 2005 23:48:16 +0200
Hello, Jon, you wrote:

> Actually I meant that to go to sgw, not the list :(

Yeah, I know, all those function-keys ;)

> I'm unclear about what maxdumps should do is some settings.
> 
> Suppose I have a general setting of maxdumps of 1, either by
> not specifying it in amanda.conf or by setting it outside
> of any dumptype, before any dumptypes are defined.
> 
> Then further suppose I have some additional dumptypes,
>     tar-one using the default maxdumps 1,
>     tar-four specifying maxdumps 4
> and tar-twenty specifying maxdumps 20.

Well, I know you write "I suppose" but I assume someone would have a
good reason to create these dumptypes.

> Lastly, suppose I have a single client that has lots of DLEs
> using a mixture of the three above dumptypes.  Dose amanda
> then apply maxdumps on a combined algorithm using per-client
> and per-dumptype?  So I could have as many as 25 dumps running
> on that single client (assuming the right mix of dumptypes
> and DLEs)?
> 
> I imagine the restriction is enforced at the start of a dump
> for a particular client.  But I can't imagine the server
> about to start a "tar-one" dumper on the client checking if
> the other dumpers on that client are all running dumptypes
> that have maxdumps overridden.

We should have a look at the code, I assume.

I will try to do that tomorrow ...

Greets, Stefan.


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