Visio by DPTPB: 40GbE to 4x10GbE breakout cable shapes

Feb X 2017 update notes for Visio by DPTPB stencil collection, part 3

40GbE to 4x10GbE breakout cable shapes

With most 40GbE switches there is possibility to split a single 40GbE port to four 10GbE ports by using breakout cable with one QSFP+ connector at one end of the cable and four 10GbE SFP+ connectors at the other end of the cable.

Available both for fiber and direct-attached connectivity. Fiber connection has separate transceivers + a breakout cable with 1x 40G MPO connector / 4x10G LC connectors. DAC cable is a single piece of hardware.

Continue reading “Visio by DPTPB: 40GbE to 4x10GbE breakout cable shapes”

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Nutanix + 10GbE Switches + DAC cables: Working Combinations

While Nutanix has only few types of cables to use and has way simpler cabling schematic than traditional 3-tier architectures, there are still cautions with cabling, especially with 10GbE cabling.

If I had to name one type of IT equipment that I really dislike, the award would definitely go to 10GbE DAC or TwinAx-cables. This dislike is not specific only towards Nutanix 10GbE DAC cabling, regardless of which vendor I happen to be working with, I usually feel pinch in my stomach, when someone suggest using DAC cables.

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NetApp Ontap 9.1 HW refresh: Faster ports and more ports

NetApp announced hardware refresh recently, basically renewing all current FAS / AFF controller models.  This time I will investigate network connectivity and more so port counts rather than port speeds.

Continue reading “NetApp Ontap 9.1 HW refresh: Faster ports and more ports”