Like anything technical, when it
comes to co-location, there's a whole bunch of
terms, the meaning of which can be quite ambiguous.
Below we've attempted to explain the most common
ones. We will add to this list over time.
95th Percentile
This is a billing method used if you request it
rather than transfer per month
(see below).
Samples of your actual bandwidth
usage are taken every five minutes from your port on
the switch by our bandwidth monitoring program. The
program then averages the totals and posts the
result as a five-minute usage point on your report.
Over the month, we will continue to plot the
five-minute averages, which total about 8,640 points
plotted on the graph.
We then take the top five percent of your usage (432
points, or 36 hours) and discard them.
Your usage is determined based upon the highest
remaining usage plotted. This method of billing
provides you with a number of advantages. Any usage
bursts that are untypical of your bandwidth
requirements are not charged to you, and this
equates to receiving approximately your highest 36
hours of bandwidth usage free each month.
We then give you access via the web to view your
Daily, Weekly, Monthly and graph reports at any
time. If your package(s) include a specific amount
of bandwidth, any overage(s) will be billed at your
contracted rate at end of the calendar month.
What is a
"U"?
A "U" is a measurement of space
for co-location. Rack-optimised servers are
usually measured in terms of their height in Us.
They are usually flat, pizza-box shaped machines.
One U is 1.75" of space.
Some more quick numbers:
1U = 1.75" of Vertical Rack
Space
2U = 3.50" of Vertical Rack Space
3U = 5.25" of Vertical Rack Space
4U = 7.00" of Vertical Rack Space.
Transfer per month
This is a billing method used by
us to fairly bill you based on your usage.
This refers to the total amount
of data transferred to and from your site each
month, including web, FTP, email, and all other
traffic.
For example: Every time one of your web pages is
viewed by someone on the internet, the size of that
page goes towards your bandwidth usage. Below is an
example of how many times a page would have to be
viewed to reach 20GB of transfer
Page size 30kb = 349,525 views
Page size 40kb = 262,144 views
Page size 50kb = 209,715 views
Page size 60kb = 174,762 views
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