On what medium to store important information?

Question

Iron

Hello.
I need to find a storage method for a fairly large archive. It is preferable that there would be no problems with the self-destruction of the carrier in the foreseeable time period. That is, what type of media can be used to record important information and put it on a shelf for 50 years?)
I found options with archival dvds, but are there still options that are large in volume so as not to store dvd racks? Something like a removable ssd \ hdd, but with an increased service life.

Answer 1

magnetic tape

Answer 2

Cloud. Every physical medium has an expiration date.

Answer 3

from modern M-DISCs .
pluses:
standard format CD DVD BD
is read by standard drives
higher storage density than in magnetic tape (for BD).
not afraid of magnetic fields.
There is probably only one minus - for recording you need a special drive
for personal cold storage.

Answer 4

If you don’t bother with tapes, then TWO or THREE hard drives of reliable series from DIFFERENT manufacturers of DIFFERENT batches.
If you take external hard drives, then do not take ready-made USB drives, but buy a 2.5-inch SATA laptop drive and a cheap external USB-SATA box adapter.
In the vast majority of ready-made USB drives from WD, Seagate, Toshiba, the USB controller is now soldered directly onto the drive. And this is a weak point. If the interface or connector breaks, it will be enough to remove the disk from the box and connect it to the PC with a regular cable.

Answer 5

If the data is valuable and interesting, then publish it. Create a torrent. This will provide a large number of copies around the world.
True, when the data becomes morally obsolete and they are replaced by more recent and relevant information, the number of copies will steadily tend to zero.

Answer 6

A very good question. Will there be anything to read such a medium in 50 years? Wouldn't it be necessary to manufacture devices and write all the software to work with them?