I'm expanding the switch in our rack to a 10 GbE fiber internet feed. Specifically:
- we have an HP 2910al
- will expand the switch with a J9008A 2-port 10GbE SFP+ module
- will plug in 1 (2?) J9150A 10Gbase-SR tranceiver
Our HP vendor tells us that we need two transceivers, but I cannot find any documentation to that effect. And the images of the transceiver seem to indicate each one has two physical cable ports. But…
Having never actually worked with 10GbE, fiber or SFP+ before I thought I'd hask the boffins here on Server Fault before placing any orders. Please save me from wasting time and/or money!
Best Answer
I haven't worked with 10GbE but AFAIK you only need one fibre connector at each end (unless you're bonding at a guess). Is you vendor confusing the fact you need one at each end ?
You can't mix the interface types because of the cable. At least that's my understanding. We use them for Gig fibre.
You might be surprised that you can pick these little modules up for about £30 off eBay and the likes. Vendors try and force you to buy their massively inflated brand but have a quick look before you buy and you'll probably find they're really cheap elsewhere. I think we got a couple of perfectly good used ones of eBay for £15 each to have some spare in stock.