Networker

Re: [Networker] Balancing load between storage nodes

2006-05-09 09:37:38
Subject: Re: [Networker] Balancing load between storage nodes
From: Gatti <xy.0815 AT GMX DOT NET>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Tue, 9 May 2006 09:35:07 -0400
Hi Thierry and all,

because I missed the RTFM (M = Maillinglist),
I opened a quite similar thread below.

I'd like to discuss the following a little bit more in depth:
> Storage node affinity is based on a top-down preference,
> Legato selecting next entry from the list
> if mount request cannot be satisfied.

IMHO Legato only selects the next entry in the storage node affinity list,
if the storage node is not reachable, etc.
>From my POV, that's not the case, if the "mount request cannot be 
satisfied" (i.e. all drives on storage node are busy).
If all drives on the 1st storage node are busy, the mount request
will be queued for one drive on THIS storage node and not rerouted
to the second storage node, etc.

Unfortunately I would like to have the other
(uses next storage node if 1st is busy) behavior,
but have not tested this yet 
(additional Storage node will go in production end of month)

Pls. correct me if I'm wrong.

Thx -sg-
--
Steffen Gattert; VISIOplant Hamburg

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