9
votes
4answers
342 views

Maxing out both PDUs in a rack with redundant power

If I have a rack full of servers using redundant power supplies, and I'm keeping the amps at 80% (16A of 20A), isn't this still asking for trouble in the event of a power loss on one of the circuits? ...
4
votes
2answers
402 views

Understanding redundant power supplies

Im looking into the cost of putting a Cassandra cluster into a colo facility. Along these lines there would be 6-8 servers at the outset with expected growth over time. One option is just a series of ...
0
votes
1answer
355 views

Server/Power supply AMP usage

I've been looking into getting some servers with co-location, I've worked with co-lo'd servers before but this is the first time I've actually a rack up. All co-lo' providers specify a limit on the ...
0
votes
3answers
2k views

Switching from 120v to 208v power

We are going to switch from 20 amp 120 volt to 20 amp 208 volt circuits in our colocation facility. I am new to dealing with anything other than standard 120v power, so I am unsure of some intricacies ...
6
votes
7answers
10k views

How can I calculate a server's amperage?

When ordering co-location services, a certain amount of power is included, for example 0.25 amps, 0.5 amps, 1 amps, 2 amps, etc. How do I calculate how much a server is going to require?
5
votes
2answers
374 views

Understanding colo pricing with respect to power needs

I run a small shared web hosting company and rent all my servers. I periodically consider switching to colocating my own boxen and inevitably get stuck understanding how much it may cost. As far as ...