I need home computer for simple backup task (just cronjob on Linux, it will run once per day):
- Download file from my production server (in datacenter, it's good server with Xeons & ECC RAM etc.) to this home computer, verify checksums.
- Burn it to DVD-RW (later I will buy Blu-ray drive for that, later (not sure, price is too big for me now) I will buy tape drive and will write backups to LTO tapes).
- After burning, read disk, and verify checksums again.
Is it safe to use not ECC RAM for that task (cold backup server)?
Because of I'm going to use rewritable disks, it will be free to repeat operation on error, so it's acceptable solution for me if someday I will need to spend some more time on this operation.
But I'm not sure, can file verification save me from memory errors?..
So do I need to buy separate server with ECC RAM to my home for that task or I can just use my old home PC (RAM without ECC) and do not spend money at all?.. [I can buy server, I understand, it's all cheap today, but I prefer not to spend money if it's possible do not spend them, also it will eat more energy, spend my time on administration and I need to find space for it in my room..]