<br><font size=2 face="sans-serif">The main downside of using a switch
in your DRBD interlink is that you add another component that can - and
at the worst possible time will - fail. If using a switched network use
it with two network cards, two switches and Active/passive bonding. Otherwise
you have the switch as single point of failure.<br>
</font><font size=3 color=#5f5f5f>Mit freundlichen Grüßen / Best Regards<br>
<br>
Robert Köppl<br>
<br>
Customer Support & Projects <br>
Teamleader IT Support<br>
<b><br>
KNAPP Systemintegration GmbH</b><br>
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8700 Leoben, Austria <br>
Phone: +43 3842 805-322<br>
Fax: +43 3842 82930-500<br>
robert.koeppl@knapp.com <br>
www.KNAPP.com <br>
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Commercial register court: Leoben</font><font size=3><br>
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<td width=40%><font size=1 face="sans-serif"><b>Felix Frank <ff@mpexnet.de></b>
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<br><font size=1 face="sans-serif">Gesendet von: drbd-user-bounces@lists.linbit.com</font>
<p><font size=1 face="sans-serif">02.04.2012 12:36</font>
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<div align=right><font size=1 face="sans-serif">An</font></div>
<td><font size=1 face="sans-serif">Digimer <lists@alteeve.ca></font>
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<div align=right><font size=1 face="sans-serif">Kopie</font></div>
<td><font size=1 face="sans-serif">drbd-user@lists.linbit.com</font>
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<div align=right><font size=1 face="sans-serif">Thema</font></div>
<td><font size=1 face="sans-serif">Re: [DRBD-user] Hardware-recomendation
needed</font></table>
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<br><tt><font size=2>On 04/02/2012 10:09 AM, Digimer wrote:<br>
> I'm open to being shown why I am wrong though (seriously :) ). Do
you<br>
> have any testing numbers or arguments against using a switch?<br>
<br>
You got me. I've never made such analysis. It's more a case of "common<br>
sense agrees with general recommendations agrees with general anxiety"
;-)<br>
<br>
I'ts also that I'm fairly certain that if you do use a switched network<br>
for you DRBD links, it is unlikely to be dedicated (because then it<br>
would be almost trivial to remove the switch from this piece of your<br>
setup). Again, I've been in situations where you cannot have a dedicated<br>
link, and I sympathize, but it's a painful choice and I encourage<br>
everyone to refrain from it.<br>
<br>
I cannot comment on the sense (or lack thereof) in switching your<br>
dedicated links. Your point appears valid.<br>
<br>
Cheers,<br>
Felix<br>
<br>
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