All of our volumes are thin, so I assume based on what you're saying that every volume should read "false" for "space-reserve-honored". - Yes, every thin volume.
If I'm understanding right, does that mean it essentially doesn't matter what you set the LUN to if the volume is thin? Will the LUN always be thin provisioned if the volume is?
-Technically, no. but I would leave Thin/Thin esp because you're on AFF. Check out this docs page to see what works.
https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm-sanag%2FGUID-2F5C9474-FFE9-4E59-84DB-1B9D6D134688.html
The result is different - System Manager shows 0 used space on the volume until content is added. - how it should be if space-guarantee is disabled.
For all LUNs created by SnapDrive, it shows the LUN size as being used space on the volume, regardless of usage on the LUN.
For example: if I create a 200 GB thin volume and a 100 GB LUN in SnapDrive, the volume shows 100 GB utilized. If I create the LUN in SnapCenter on the same volume, it shows 0 GB utilized.
-I would verify that all luns are thin (space-guarantee disabled) sounds like SnapDrive is creating thick luns on top of thin volumes maybe? It's been a long while since I used SnapDrive though.. can't recall what it dose by default off the top of my head.