How to merge disks into one partition (linux)?

Question

linux

I want to merge several hard drives into one partition sequentially, I read about lvm, but there, if one drive dies, then nothing can be read from the rest, is there something that will allow me to merge the drives and, if one fails, get data from the remaining ones?

Answer 1

* lvm is not about fault tolerance, it's about flexible disk device and space management.
* For fault tolerance - RAID or backups. Or both.

Answer 2

Only LVM or RAID. A fault-tolerant array will not work out of two disks. Usually do Raid-10

Answer 3

In series is lvm or RAID0. But this makes no sense, because if one disk fails, the entire array dies. For acceptable speed and reliability, they make RAID5, RAID6, RAID10 - they all differ in speed, the required number of disks and the working volume (for example, in RAID10 with 4 2TB disks, the volume of the array will be 4TB)

Answer 4

It is difficult to programmatically solve such a problem, because it is usually easy for a person to divide their data, but it is not clear how software can divide them into two disks so that when one disk is pulled out, there is at least something that makes sense to read separately.
How do you imagine such software, according to what algorithm should it decide which file will go to which disk, so that later it would make sense for you to read data from one, separate, disk on another computer?