How do I identify the hard drive on my Synology NAS?

For Synology NAS with 2 or more hard drive models, the hard drive locations are sorted from left to right or top to bottom. To find the actual hard drive, please refer to the number shown below.


2 hard drive models:



4 hard drive models:




5 hard drive models:



8 hard drive models:



10 hard drive models:



12 hard drive models: