Thursday, August 8, 2019

Buying a Chassis switch vs a Stacking vs MLAG

We have an relatively fixed budget and need ~24x SFP+ ports

The two tech's I work with only know HPE Procurve/Aruba when it comes to switching so there would have to be a great reason to not use it.

The minimums are:

6x for iSCSI storage

8x for servers iSCSI connections

8x for servers LAN connectivity

2x for connecting the LAN to the rest of the network

My main concern is whether to get:

Opt A. 1x chassis with 2x management modules and 4x line cards (5406r zl2)

Opt B. 2x fixed switches configured for backplane stacking (3810m)

Opt C. 2x fixed switches configured for MLAG with QSFP+ as cross connects (3810m)

My gut feeling is going with Option C followed by A with B just being a bad idea.

Coworker 1 wants A.

Coworker 2 wants B.

I am wanting C but am having a bad time articulating why.

Longer term we would be relegating the hardware to either just LAN or just SAN and buying another solution for whats left.

Anyone have some input on leaning one way or the other?

Thanks



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