[Cialug] tornado-proofing your data?

[David Champion]

When I worked in a warehouse as a teenager (yeah, that was a long, long 
time ago...) we used a forklift to lift the forklift batteries. :)

p.s. The forklift batteries also tended to leak battery acid, so don't 
wear anything you're fond of keeping when you're working with them.

-dc

Dave J. Hala Jr. wrote:
> They generally start at around a $1000.00 and they are heavy.  You'll
> need a 3/4 ton truck to haul it and some type of hoist to get it off the
> truck/trailer.
>
>
> On Wed, 2008-05-28 at 09:52 -0500, Nathan C. Smith wrote:
>   
>> Wish I'd known that about the forklift batteries a month ago.  I just got a new optima blue for our panel.
>>
>> -Nate
>>
>>     
>>> -----Original Message-----
>>> From: cialug-bounces at cialug.org
>>> [mailto:cialug-bounces at cialug.org] On Behalf Of Dave J. Hala Jr.
>>> Sent: Wednesday, May 28, 2008 8:46 AM
>>> To: Central Iowa Linux Users Group
>>> Subject: RE: [Cialug] tornado-proofing your data?
>>>
>>>
>>> You forget...I'm a bohemie with a welder. I'm fairly
>>> confident that I would not build a structure to hold all
>>> those pv panels.  I'd probably build a frame using a 14ga 1in
>>> box steel and 18ga sheet stock. I'd put it 6-8 inches off the
>>> ground (so the bunnies could have a home) and then I'd put up
>>> a 50in tall cattle panel fence around it to keep the dogs off
>>> of it.  I realize that dogs and bunnies don't mix, but if you
>>> have an ample supply of de-wormer and bunnies, you have happy dogs.
>>>
>>> I've just finished the mockup of a prototype 2kw (in 25 mph
>>> wind) horizontal axis wind generator that sits on the ground.
>>> Photos will be available as soon as its painted and spinning
>>> in the back yard.
>>>
>>> I'd use an Outback systems inverter to combine the two
>>> seperate power sources and charge the battery. I wouldn't use
>>> the optima batteries.
>>> They cost too much and only have a 3-5 year life. I'd
>>> purchase a 24 volt forklift battery that has been recently
>>> taken out of service. There have been numerous reports of
>>> re-purposed forklift batteries being used with wind turbines
>>> and being in service in excess of 15 years.
>>>
>>> :) Dave
>>>
>>> On Wed, 2008-05-28 at 08:21 -0500, murraymckee at wellsfargo.com wrote:
>>>       
>>>> That's assuming that you built a structure strong enough to
>>>>         
>>> hold the
>>>       
>>>> panels against the wind during the storm.  And even if the frame
>>>> holding the panels survived you'd have to contend with the panels
>>>> being blown out of the frame.
>>>>
>>>> Murray McKee
>>>> Operating Systems Engineer
>>>> WFFIS - Wells Fargo Financial Information Systems 800 Walnut Street
>>>> MAC F4030-037 Des Moines, IA 50309-3605 WORK (515)557-6127
>>>>         
>>> Cell (515)
>>>       
>>>> 890-9660  FAX (515) 557-6046 MurrayMcKee at WellsFargo.com
>>>>         
>>> "This message
>>>       
>>>> may contain confidential and / or privileged information.
>>>> If you are not the addressee or authorized to receive this for the
>>>> addressee, you must not use, copy, disclose, or take any
>>>>         
>>> action based
>>>       
>>>> on this message or any information herein.  If you have
>>>>         
>>> received this
>>>       
>>>> message in error, please advise the sender immediately by
>>>>         
>>> reply e-mail
>>>       
>>>> and delete this message.  Thank you for your cooperation."
>>>>
>>>> -----Original Message-----
>>>> From: cialug-bounces at cialug.org
>>>>         
>>> [mailto:cialug-bounces at cialug.org] On
>>>       
>>>> Behalf Of Dan Hockey
>>>> Sent: Tuesday, May 27, 2008 11:11 PM
>>>> To: 'Central Iowa Linux Users Group'
>>>> Subject: RE: [Cialug] tornado-proofing your data?
>>>>
>>>> * 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
>>>>