cid said:
I was just curious what is the right backup strategy for photos?
What approach do you prefer and why do you think it's the best?
Usually, you backup data according to the kind of losses you want to avoid. So your first step should be to list the issues you need to address and then find a way to solve them.
My camera (1DX) has two slots so I use them as mirrors. When I/we travel, I usually have a portable disk on which I copy the cameras content. This disk is kept in our regular luggage. That way, I mostly cover camera thefts and memory card integrity.
At home, photos are stored on a different computer on a RAID1 array. All users (wife, kids, family with accounts) have a read access to the volume but I am the only one to have write access to the "new" content (someone accidentally delete a directory so I change the share policy to a more paranoid mode). Once I have fully processed all photos of a specific year, write access is removed (I have to admit I do not really trust myself either)
Our personnal data is backed-up on tapes (LTO). This is old fashion but I am not very young too and I am used to use such media. The main advantage is you may have plenty of different physical supports (tapes) and easily store them off site. I am backing-up at least one a month (this tape will be kept forever) but, when I have new contents or when I have processed many raws, I will backup up once a week (and will keep this tape at least for one year). This is to be able to retrieve a file as it was at a specific time (within a week time frame for recent files or a month time frame for older ones).
Once I have imported photos, I will not process them before backing-up the data (unless I do not really care about the photos). When I really care about the photos, I will wait for the backup before erasing the memory cards and I will wait for several monthly backups before removing raws.
I usually keep a few tapes in a safe in our basement, in my parents and parents-in-law location and at my office. I also keep a copy of all our photos on the portable disk we bring on holidays (France may be nuked during my holidays, I still have my photos...)