Is it possible to "break the mirror" without ruining the system (mdadm)?

Question

linux

subj actually

ps itself is a Windows user, that's why the questions will seem to someone like a chaynitsky))

Answer 1

If this is a mirror (raid1), then yes, you can work on half of the mirror, because it is identical to the second half. For example, if there is a hardware problem with one of the disks, then it is changed, then the data is synchronized, and all this can be done without stopping the system (if there is a possibility of hot hardware replacement of the disk).