I’ve talked bit about the problems of using Category 6 copper cabling in the data centre. The sheer size and weight of the cable is a serious problem.
Here are my concerns ( discussed in more details here - Problems with Cat6A cables in the Data Centre:
- High power consumption
- large physical Cat6A cable size
- poor mechanical properties of Cat6A copper
- Unreliability of copper in terms of Bit Error Rates (BER) and long term electrical capability.
Take a look at this sample that I was able to access recently. The Category 6 cable is twice the size of the Cat5 cable and seems to weigh about twice as much!!
This side view is more dramatic in showing the amount of physical space that a Category cable bundle needs:
This data centre decided to not use Cat6 cabling because the cost of enhancing the cable trays was more than the cost of using fibre optic or active coaxial cables. The requirements was to double the number of cable trays around the data centre and the cost was excessive.
The EtherealMind View
This is one of those times that a cheap NIC will quickly cost more. It’s quite hard to explain this to managers, they simply aren’t bright enough to understand the maths involved here. And especially you can’t charge the extra cable trays to each individual project means that it’s a major infrastructure problems to get solved.
Hidden costs are still real and the long term impacts of Cat6 cabling are serious. Think carefully.
I have nothing to disclose in this article. My full disclosure statement is here