Amanda-Users

amanda over wireless network

2005-11-16 21:14:06
Subject: amanda over wireless network
From: Paul Yeatman <pyeatman AT mamacass.ucsd DOT edu>
To: "Amanda user's group" <amanda-users AT amanda DOT org>
Date: Wed, 16 Nov 2005 17:53:54 -0800
Hi, don't seem to find much concerning "wireless" when searching the
mailing list.

I'm attempting an amanda backup of a computer on the wireless network
for the first time.  Just preceeding this is compiling amanda on an
Apple powerpc and getting that to work.  This has gone well.  The
number of Apple laptops in our research group has been noticably
increasing as has the need for a way to back them up.  I'd like to use
amanda for this if I can make it work.  Adding to this is that several
such Apple laptop users have so far exclusively used the wireless
network.  I'm just now experimenting with whether it will work to back
up these laptops over a wireless network using amanda.

I have successfully performed this feat on a home directory just over 3
gigs.  When I try the full "/" partiion (17 gigs), however. it times
out during the estimate.  I had already increased the estimate timeout
on the server side to be 900s.  From where it appears to be failing,
given the amandad log on the client, increasing the timeout limit more
won't help

        .
        .
        .
        Amanda 2.4 REP HANDLE 001-3003BD2A55000000 SEQ 1132177077
        OPTIONS features=fffffeff9ffe7f;
        / 0 SIZE 17648380
        ----

        amandad: time 1249.536: dgram_recv: timeout after 10 seconds
        amandad: time 1249.536: waiting for ack: timeout, retrying
        amandad: time 1259.536: dgram_recv: timeout after 10 seconds
        amandad: time 1259.536: waiting for ack: timeout, retrying
        amandad: time 1269.537: dgram_recv: timeout after 10 seconds
        amandad: time 1269.537: waiting for ack: timeout, retrying
        amandad: time 1279.537: dgram_recv: timeout after 10 seconds
        amandad: time 1279.537: waiting for ack: timeout, retrying
        amandad: time 1289.537: dgram_recv: timeout after 10 seconds
        amandad: time 1289.537: waiting for ack: timeout, giving up!
        amandad: time 1289.538: pid 29092 finish time Wed Nov 16 14:29:36 2005

I'm challenged to understand why the estimate is failing when
attempting to backup a larger amount of data (and what if anything I
can do about it)

amanda-2.4.5p1
powerpc laptop running Mac OS X, Darwin 8.3.0 kernel

thanks,

Paul

-- 
Paul Yeatman       (858) 534-9896        pyeatman AT ucsd DOT edu
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