hi, I have ~1G of personal documents that include all documents that I wrote/edited since high school. Most of them are docx/pptx/txt/markdown/pdf, and mostly text with a small fraction of pictures. I wonder if there is a rock solid backup against almost all possible corrupt in my data files? There are not large files (very few photos/videos) so I do not mind using 10x storage space (with huge redundancy to protect against any corruption) to back up data. Any ideas?
OneDrive/Google Drive
Just back them up in multiple places. I’d suggest Backblaze for offsite storage; I use it to back up my important data.
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At one gigabyte, your best option is redundancy, not reliability. Put copies on a dozen cheap USB thumb drives and store them with friends, relatives, or just in a metal box out in the woods. Upload to Google Drive, OneDrive, and everywhere else that’s offering a free tier that’s large enough. Burn a fresh copy to a DVD-RW every weekend and stash it somewhere.
When you’ve got enough backups, it doesn’t matter if a few of them fail – you can always grab another copy and restore from that.