On 04/19/2012 11:57 PM, Eric Rosenberry wrote:
I have hosts and storage arrays arriving that are coming with 10GBase-T
ports onboard (and no SFP+ ports). This makes it very hard to hook to my
SFP+ *only* switches. ;-)
Really? Hmm. Interesting - what equipment is this?
There does not seem to be a (genuine, unbiased) consensus about whether
10GbaseT or SFP+ is going to "win out" for host connectivity. We have
dithered on this, but have moved in the direction of SFP+ on the basis
that server manufacturers seem to be shipping SFP+ 10G kit, and the
cheap 1U ToR switches are largely SFP+
My research indicates that the lack of 10GBase-T SFP+ modules is likely due
to the power consumption of 10 gig over copper being beyond with the SFP+
form factor allows?
So does anyone on the list know if/when a solution to this need will be
arriving?
My understanding was "never", based on vendor discussions. Specifically,
I believe the SFP+ is unable to provide sufficient power to drive a
10GbaseT, full stop.
I guess it's possible that 10GbaseT components might radically improve
in power efficiency and suddenly it becomes possible. But I wouldn't bet
on it, personally.
I'd be interested to hear what others have done, given the various costs
and tradeoffs involved.
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