tl;dr: can I put 10GbE across those MM fibers (measurement and patch panels: https://imgur.com/a/mv9kl0f ). the measurement was done by my colleague with a 10m loop on the other panel, so the 2x250m are the cables in the ground.
I tried to read into fiber theory for the last few days and also stumbled upon the long and informative post in here from a while ago. Yet I'm still strugeling to map that information to my setup.
We're planning to put a NetApp FAS2620 as a nearstore in the neighbouring building. Luckily when they built it in around 2003, they laid some fibers across the campus directly into our building.
However, noone seems to know/remember what kind of fiber it was and we only found out the length by pointing a Fluke to one of the sockets. (Measurement readings in the imgur-album) It is about 250m panel to panel and 2,2dB dampening in one direction. Or -19dB. That's another thing i cant figure out yet. Currently we have MM links with 1GbE patched with stable results.
I looked at a few 10GbE optics from fs.com (we're a cisco shop) and their power- and sensivity-values. Do I just pick one, that results in this equasion?
"tx power"-"rcv sens"-"fluke dampening reading"=0
Like shown in the pictures, the SM-panel is also available to us. So 10GbE would be no problem on that path, but I and our storage contractor is not sure yet, if the NetApp can fit SM optics. Because the plan apparently is, that we're too cheap to put a 10GbE-Switch next to it and want to patch the NetApp directly at our switch across buildings.
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