sbohne wrote:
BTW it was not serendipity. If I didn't use any backup method and never lost an image, THAT would be serendipitous. My backup plan was sufficient. There's a difference.
Just to clarify, I, and no one else here is suggesting dozens of copies or an elaborate back up system. What is being suggested by me (and any other data storage professional) is 3 copies - an active working copy, a backup copy (for convenient, quick restores), and an off-site DR copy. Simple. Sounds like you combined the last two, but there are flaws in that procedure:
1) if the off-site copy is local, it’s subject to the same natural disaster as the primary copy
2) any data between the creation of the backup/off-site copies is lost if you lose the primary storage. What if that week incorporates several important events? Gone.
3) weekly trips to the bank are inconvenient and require great discipline over long periods of time
4) a majority of disk failures occur on start-up after being powered off for long periods
5) if you lose a disc during non-business hours, you’ll wait until the next working day (perhaps Friday afternoon to Monday morning to begin your restore.
6) even with professional grade backup/restore SW, some percentage of restores fail
7) the vast majority of users employ cheap, consumer grade drives for backup
BTW, archiving your data on the original SD card is NOT a reliable long-term storage mechanism.
The reason we’re debating this isn’t that I have any investment in convincing you - you’ve made up your mind. BUT, as I said, the week doesn’t go by that some member using a poor (or no) backup system loses his data. The issue is easy to fix, and I AM interested in propagating correct information about preferred data storage practices (after working for the largest data storage companies in the world for almost 3 decades).