nanog mailing list archives
Re: Rasberry pi - high density
From: Randy Carpenter <rcarpen () network1 net>
Date: Mon, 11 May 2015 18:21:32 -0400 (EDT)
----- On May 11, 2015, at 5:36 PM, Peter Baldridge petebaldridge () gmail com wrote:
Pi dimensions: 3.37 l (5 front to back) 2.21 w (6 wide) 0.83 h 25 per U (rounding down for Ethernet cable space etc) = 825 piYou butt up against major power/heat issues here in a single rack, not that it's impossible. From what I could find the rPi2 requires .5A min. The few SSD specs that I could find required something like .8 - 1.6A. Assuming that part of .5A is for driving a SSD, 1A/pi would be an optimistic requirement. So 825-1600 amp in a single rack. It's not crazy to throw 120AMP in a rack for higher density but you would need room to put a PDU ever 2 u or so if you were running a 30amp circus.
That is .8-1.6A at 5v DC. A far cry from 120V AC. We're talking ~5W versus ~120W each. Granted there is some conversion overhead, but worst case you are probably talking about 1/20th the power you describe. -Randy
Current thread:
- Re: Rasberry pi - high density, (continued)
- Re: Rasberry pi - high density Rafael Possamai (May 09)
- Re: Rasberry pi - high density Barry Shein (May 09)
- Re: Rasberry pi - high density Eugeniu Patrascu (May 09)
- Re: Rasberry pi - high density Nick B (May 09)
- Re: [eX-bulk] : Re: Rasberry pi - high density nanog (May 14)
- Re: [eX-bulk] : Re: Rasberry pi - high density charles (May 14)
- Re: Rasberry pi - high density Eugeniu Patrascu (May 09)
- Re: Rasberry pi - high density Dave Taht (May 09)
- Re: Rasberry pi - high density Clay Fiske (May 11)
- Re: Rasberry pi - high density Dave Taht (May 11)
- Re: Rasberry pi - high density Peter Baldridge (May 11)
- Re: Rasberry pi - high density Randy Carpenter (May 11)
- Re: Rasberry pi - high density Peter Baldridge (May 11)
- Re: Rasberry pi - high density Brandon Martin (May 11)
- Re: Rasberry pi - high density Lamar Owen (May 13)
- Re: Rasberry pi - high density Dave Taht (May 11)
- Re: Rasberry pi - high density Chris Boyd (May 11)
- Re: Rasberry pi - high density Rafael Possamai (May 11)
- Re: Rasberry pi - high density Hugo Slabbert (May 11)
- Re: Rasberry pi - high density Rafael Possamai (May 11)
- Re: Rasberry pi - high density Joel Maslak (May 11)
- Re: Rasberry pi - high density Rafael Possamai (May 12)