Yes, Synology NAS can change the slot order for disks.
Synology NAS has the hard drive sequence written in the system area of each hard drive.
Therefore, after shutting down the NAS for routine maintenance, changing the hard drive slot sequence and then turning it back on, data will not be lost.
The following video is a demonstration. Drive 1, 2, 3, and 4 form storage pool 1, and drive 5 forms storage pool 2.
After shutting down the NAS, replace the hard disks in order and then turn it back on. Storage pool 1 and storage pool 2 Nothing changes.
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