My professional life I do Computer Forensics and electronic discovery, so I deal with a TON of data. I can not preach enough to BACKUP, BACKUP, BACKUP!!!!! I get a call at less weekly from friends and family who has lost data and want to try to recover it. 80% of the time it isn't recoverable or will cost $3,000+. Think about how much kid photos, that perfect presentation you made, or even just that one awesome wallpaper - how much are they worth to you. When I had my first kid is when I personally went nuts on my backup. 100% of my kids photos are electronic and it would be heart breaking to loose.
My 2 cents - I follow a 3-2-1 backup strategy. I have 3 Copy's, on 2 different media, and 1 is offsite. I also live on the edge of crazy, I also have high redundant data on local RIAD setup for a little extra but remember RAID DOES NOT EQUAL BACKUP. All my data live on my local server (Copy 1 - Media: Hard Drive) and I have a NAS that backup (Copy 2 - Media: Hard Drive), and then offsite using a mix of Backblaze (Most things - Pictures, Sequences, Home Videos, etc ... no sensitive data) and Amazon S3 (High sensitive data - Documents, credit cards, birth certificates) (Copy 3 - Offsite - Media: 'Cloud'). I have this all scripted and at MOST will be 15 min out of sync. Also protected agains theft, lost, failure, or natural disaster (Something to keep in mind - what if an area like Dallas had 1 thing is you data geographically somewhere else).
Few things to keep in mind ... Cost, what does it backup (Check each services has different specifications), security (If this was to get in the public does it need to be encrypted), How much work to keep in sync, what is the expected life of the data and the device, also will I be able to read this in X number of years (Think of ZIP discs here).
Some App / service Recommendations:
Good Sync (You are not allowed to view links.
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ARQ (You are not allowed to view links.
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Dropbox (You are not allowed to view links.
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Backblaze (You are not allowed to view links.
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Good Articles / Podcasts:
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LoginI admit I live on the edge of crazy but when you see it every day. Thumb drives die, Hard drives crash, data is deleted, house burns down, devices are lost. So my final word - BACKUP, BACKUP, BACKUP!!!!!!!!!!
Harrison