On 11/10/06, DAve <[EMAIL PROTECTED]> wrote:
pedro moreno wrote:
> On 11/10/06, Ryan Novosielski <[EMAIL PROTECTED]> wrote:
>>
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>> DAve wrote:
>> > Good morning,
>> > I'm not sure how to interpret the variation in rates. I don't think I
>> > have a problem, though I would expect the backups across the 1gb
>> network
>> > to be far faster than they are. The backups across the 1gb network are
>> > all FreeBSD boxes, the backups across the 100mb and the 13mb VLAN are
>> > Windows and RedHat servers. The dir, and the sd clients are running on
>> > FreeBSD servers dedicated to that task, there are no other processes
>> > running.
>> >
>> > Any ideas where I might start looking?
>>
>> There are a couple of things that jump out at me. Compression seems to
>> be affecting your rates a certain amount -- that probably makes sense,
>> as it takes some time to do compression. If you can, I'd be curious to
>> see what happens if you turn compression off and try the same numbers.
>>
>> That said, your speed issues might be due to A) spooling or B)
>> misconfigured duplex settings on your machine.
>>
>> Check netstat -ian or your platform's equivalent to make sure your
>> network settings are OK. As far as the spooling goes, you could try
>> without to see what happens (if you are using it), but basically my take
>> on that effect was "that's the way it goes -- you spool and your rate
>> drops." I'm not thrilled that I no longer have a good way to check the
>> SD to tape data transfer rate, but as long as the backups run in an
>> acceptable amount of time, I stay happy.
>>
>> - --
>> ---- _ _ _ _ ___ _ _ _
>> |Y#| | | |\/| | \ |\ | | |Ryan Novosielski - Systems Programmer III
>> |$&| |__| | | |__/ | \| _| |novosirj@ umdnj.edu - 973/972.0922 (2-0922)
>> \__/ Univ. of Med. and Dent.|IST/AST - NJMS Medical Science Bldg - C630
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>>
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>
>
> What help me get some extra rate was:
>
> Network Buffer Size, but it took me 1 week testing all my clients and
> decide wich value use on each client, before i setup the production server.
>
> Greetings!!!
>
> P.S . My Backup server is FreeBSD to.
Can you offer any guidelines as to how best determine the buffer size?
DAve
--
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Edit bacula-sd.conf , change Network Buffer Size, restart the sd service, them edit bacula-fd.conf for each client restart the fd-service, do 3 backups for each client, get the average.
Starting from 8192 to 262144.
I didnt found any other way to made this, but this was my test server, the same machine all this was to get the best values and them setup the server to production.
Some NT4 boxes work good with 65536 another 32768, Linux RH9 65536, none of the clients support 262144 even FreeBSD 6.1.
Was time-consume, but get me some extra rate.
Greetings.
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