[CentOS] Upgrading system from non-RAID to RAID1

Thu Jan 12 07:37:47 UTC 2023
Michael Schumacher <michael_ml at gmx.de>

Hallo Simon,

> Anyway, the splitting of large disks has additional advantages. Think of
> what happens in case of a failure (power loss, kernel crash...). With the
> disk as one large chunk, the whole disk has to be resynced on restart
> while with smaller segments only those which are marked as dirty have to
> be resynced. This can make a bit difference.

I am not sure if this is true. If a underlying disk fails, it will mark all partitions on that disk as dirty, so you will have to resync them all after replacing or readding the disk into the array.