[Gluster-users] Switch recommendations
Peter Linder
peter.linder at fiberdirekt.se
Fri Jan 27 13:16:36 UTC 2012
You could get a cisco switch that supports cut through instead of
store-and-forward, for lower latency.
Other than that, compare the port to port forwarding times and see if
there is a difference between the switches you are looking at (probably
not) and make your decision based on that. Consider connecting
everything to two switches, for failover in case a switch breaks?
On 1/27/2012 2:04 PM, Dan Bretherton wrote:
> Dear All,
> I need to buy a bigger GigE switch for my GlusterFS cluster and I am
> trying to decide whether or not a much more expensive one would be
> justified. I have limited experience with networking so I don't know
> if it would be appropriate to spend £500, £1500 or £3500 for a 48-port
> switch. Those rough costs are based on a comparison of 3 Dell
> Powerconnect switches: the 5548 (bigger version of what we have now),
> the 6248 and the 7048. The servers in the cluster are nothing special
> - mostly Supermicro with SATA drives and 1GigE network adapters. I
> can only justify spending more than ~£500 if I can be sure that users
> would notice the difference. Some of the users' applications do lots
> of small reads and writes, and they do run much more slowly if all the
> servers are not connected to the same switch, as is the case now while
> I don't have a big enough switch. Any advice or comments would be
> much appreciated.
>
> Regards
> Dan.
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