[Cialug] tornado-proofing your data?

Dan Hockey icepuck2k at mchsi.com
Tue May 27 23:10:56 CDT 2008


* Backup onto a remote server located in the underground fruit cellar in the
back yard.
*Use a combination of a solar/wind power the power it.
*Since you only need about 500 watts, you could do this for a reasonable
cost.

Have you priced solar panels and batteries lately?

500 watts x one hour = 500w/hr or 0.500Kw/hr
0.5Kw/hr x 24hrs = 12Kw/hr <- and that's just for one day.

Now for the battery pack..
Using the Optima blue top (55ahr) for this example.

(55ahr x 12v) / 1000
         660  / 1000
         =0.66Kw/hr just for one battery.

55ahr x 20 = 1100ahr

(1100ahr x 12v / 1000 = 13.2Kw/hr

1 battery = $169.95 x 20 = $3399.00

Keep in mind your solar array is going to be 2x to 3x larger in order to
charge the battery bank with the ~4hr of useable sunlight(for ia) for fixed
solar panels.
As you can see this is starting to get expensive to keep your data safe,
that doesn't include the inverter and charge controller. You will be the
only one in town with the highest uptime after the tornado blows through.
-dh   



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