II have important data that I would like to store offline with occasional addition. But, when data is stored offline, there is a possibility that the data may become corrupt and I may not even know it. So question 1 is, how concerned should I be for this kind of corruption?
Now, suppose I should be concerned enough that I have multiple copies of data. I feel I should, on regular intervals, check whether the data maintained is still valid. Question 2: Generally how long should the intervals be? If they depend on the drive I use, then assume I am using flash based storage (SSD or Flash).
So, now I have to check the data, and determine if it is valid. A good way to do this is to use hashes and verify integrity. I can do this on my own for myself using whatever scripts I want. But, the point is, I want this model to work for my parents. (My parents run Ubuntu, so they have some tech know how, but I cannot expect them to dig into command line.)
Is there a GUI-based method of checking the integrity of data on multiple USB storage devices and then correct and repair the files by copying the correct one (if needed, and if it can)?
I may finally go with an interactive script, but if a GUI exists for now, it will be much better.