Someone pointed me to these [1], M-Disk, 25 pack of 100GB for around $260. That last for 1000 years. Probably some marketing numbers but I will be happy even if it was 100 years. It is still on my research list I have look at how and why it works and if they really that good in real life. But [2] seems to be reassuring.
I dont think the cost is expensive on a long term TCO. Assuming it really last that long. The problem is the time to burn those Data and they are practically not searchable.
I hope there are next gen storage, optical or not that brings larger data count and longer life cycle
I am thinking of a vague idea if there could be an NAS, where it has two drive, one for your local copy, the other one is used for storing bit and pieces of Data of similar brand of NAS from other users for recovery purposes.
Sounds like you want a modern equivalent of one of the old Auspex/NetApp servers that used distributed RAID HDDs for the the head of every file, backed by optical disk robots for the rest, so for large files, you get a nice cross of the performance of HDD with the cost of optical.
Also, no one here has mentioned Duplicati yet (https://duplicati.com). I switched last year, and it's flat wonderful.
The versioning and backups just work, it's free and open source, runs on pretty much everything, has good encryption baked in, and supports a really broad array of backend storage protocols for both cloud and local. Oh, and it comes with a pretty decent scheduler and a web-based GUI interface.
Quite honestly, the best piece of OSS I've adopted in the past two years. I no longer pay for any backup software (just S3/Wasabi storage), and I no longer have to do any integration or management of the moving parts - it just works. I like that, as I no longer have the patience for crappy software now that we're two decades into the 21st century.
I dont think the cost is expensive on a long term TCO. Assuming it really last that long. The problem is the time to burn those Data and they are practically not searchable.
I hope there are next gen storage, optical or not that brings larger data count and longer life cycle
I am thinking of a vague idea if there could be an NAS, where it has two drive, one for your local copy, the other one is used for storing bit and pieces of Data of similar brand of NAS from other users for recovery purposes.
[1] https://www.amazon.com/Verbatim-98914-M-Disc-100GB-Surface/d...
[2] http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www...