Updated May 2017
Nimble Storage Visio stencils. Includes the new All Flash, Hybrid and Secondary Flash arrays. Quad port cards: Quad 1GbaseT, Quad 10GbaseT, Quad 10GbE SFP+ and Quad FC.
Thanks Jim. I needed these stencils. For me it's a lot easier to connect the dots and learn visually. I've attached a few diagrams that I've drawn with your stencils to share with others. Feel free to comment if there's any configuration errors.
Why not plug everything from Controller A into Switch 1 and everything from Controller B into switch 2? That way, if you were to lose either Controller A or Switch 1, the failover would happen, and all 6 Ethernet ports on Controller B would be functional on Switch 2.
In the scenario above, if you lose Switch 1, the you would still be using Controller A, but now on only half the ports. Any thoughts on this being a better or worse configuration and why?
some things to consider:
1) During failover from Active:ControllerA to ControllerB there is a momentary halt to IO (I saw about 15 seconds during testing) which may be an issue depending on environment. Would it be better to prevent a controller failover but lose 1/2 bandwidth?
2) Would dual attached hosts (2 cards only) still be able to load balance? or still load balance but increase bandwidth across inter-switch links?
I think you nailed it. My guess is load balancing is the reason for the ‘best practice’ of half the cables of controller A and B to each switch rather than all of A’s to one switch and all of B’s to the other switch.
I spoke to a Nimble tech. He explained that with a staggered configuration such as the best practices recommendation, one could lose both a switch and a controller and still be operational.
will there be a new visio stencil file with the new ES2 and CSX000?
A new stencil file has been uploaded with ES2 and CSX000.
Nimble Storage Visio stencils updated with All Flash, Hybrid and Secondary Storage arrays plus Quad port cards.
Retrieving data ...