How to replace a Volume in mdadm software RAID array
mdadm, which is a Linux Software RAID, is not inferior to a typical hardware RAID controller, and just like a hardware controller – enables us to swap physical disks inside the RAID array. It requires executing some commands indeed, but the whole process still seems to be pretty straightforward.
Usually, we replace a disk in RAID when it starts failing, but there might be scenarios, where you just want to swap mechanical SATA disks in RAID with SSDs, one by one, for better performance, without reinstalling the whole OS.
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