Therefore - and as mentioned in the initial inquiry - it is a inquiry about a SYSTEM.
A system normally comprises several elements, they can be elements of different kinds, material or non-material.
You are right, all kinds of risks must be considered, fire, flood, …
I am aware of it. Missed to ask in the question to skip such discussion.
Just to keep the discussion modularized as possible. My fault.
I am not asking for “perfect” things. Just working and satisfying the risen requirements will be good enough,
it means 100% reliability in terms of the risen requirements. Nothing more.
The best concept is mutiple backup targets with one possibly being offsite and then you have to do regular test restores.
I agree. However me be not sure if it is sufficient enough.
How about detecting errors and recovering from such in file system of the backup storage?
My opinion is - base on life experiences - file system errors protection/recovery is as essential
as the backup itself. It should be the intergral element of backup plan.
