Two DSM 7.x instances with the same serial number. Is this normal/ok?

[denmalley]

I built two different loaders for baremetal machines using ARC and went through the standard process (i.e., I did not choose any but the suggested options). I ended up with two machines that have the same serial number.  I didn't notice until I used Synology Assistant and saw them side by side.  Is this normal and/or ok?  I've seen this question asked back in 6.x days but just wanted to verify I won't have any issues in 7.x

[apriliars3]

Two different with the same serial number is possible. I share my serial number with a lot of users without problems.

Two different with the same mac on the same net is not possible.

[denmalley]

SOunds good, these are two different MACs so no problem there.  Thanks for the answer.