Back Up strategy

I have been asked a few times do I keep all my images? well amazingly I do even though each image is 25 meg, I have a set procedure that is mostly automated   A simple rule I've learnt over time, with backups 

3 Backup copies of anything you want to keep. 
2 different storage media. 
1 offsite storage site.

photos are loaded onto my editing PC into lightroom  this has 6tb of storage  and one copy is kept on a external hard drive when editing is finished, 

within 10 mins a copy of images are sent to 1 of 2 home-servers I run with a total of 24 TB of storage .

Two  HP Proliant servers with 8 Hard drives in total 

hp Link 

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 so two copies in two places now for the third on the servers I run some software called CrashPlan, this backs up to the cloud, a company in US called Code 42, I have unlimited space on the plan I have. so within 10 mins of me loading the images on my PC I have a copy elsewhere and a copy in the cloud that I can access anywhere in the world.

Crash plan offer lots of different plans for back up  check them out here 

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So when I am asked do I still have them pictures from 2 years ago Yes I do :)  If you have any questions on this drop me a line.