4 ms·
one of the key things to do in a 'serious' datacenter is separate the fiber from the power. this is why serious facilities have a dedicated channel of yellow p
by walrus01 4y ago
one of the key things to do in a 'serious' datacenter is separate the fiber from the power.
this is why serious facilities have a dedicated channel of yellow plastic overhead fiber tray which contains ONLY 1.6mm or 2.0mm jacketed 9/125 singlemode fiber, with nice smooth corners and spigots on it coming down above racks.
and then the AC power is in conduit and long rectangular metal enclosures.
and the -48VDC cabling on steel ladder rack, often with waxed string lacing if it was done by people who are being serious about it.
on a per rack cabinet level it's also really important to pick one vertical side for your power cables, and data cables vertically up the OTHER side, and stick to it consistently.
- systems_glitch 4y agoWe often end up with AC power down both sides for A and B busses. Prefer the "zero U" type solutions for that.
- deleted 4y ago[deleted]
- gtfoutttt 4y agoWhy is this? Does power interfere with the fiber?
- walrus01 4y agoNo, not at all, it's for proper organization, management, labeling, flexibility to add and remove things, etc.
- deleted 4y ago[deleted]
- ilyt 4y agoThen you get a bunch of boxes where "connectivity" and "power" is on opposite side than the other boxes ;/
- kazen44 4y agowhat is also very common is having power ran across different power rails under the floor of the DC (different feeds obviously), which is then terminated upwards to a PDU into the customers rack. Fiber comes in from the top, with a MPO or patchpanel at the top of rack for customer termination.
- walrus01 4y agoI don't know of anyone building new raised floor datacenters. Cabinets and equipment on concrete slab and everything power and communications related overhead.