Make sure that whatever user is set to mount the share through casper admin has r/w permissions to the share on netapp. Casper defaults to some local user which ad does not know about. We changed this in my environment to an AD account.

To see which user casper admin is using, go into your jss web interface > settings > servers and select your netapp dp.

yes. the user has read/write permissions to the share and the user is in AD as well. Do you have to use DOMAINuser as the username for AD accounts in DP settings?

You shouldn't. Here's a copy of the settings for our netapp DP as it sits on the JSS. We are using JSS v8.1:

General:
Display Name: NetAppv2
DNS Name or IP Address: NetAppv2.domain.com
It's not our master server and there is no load balancing being done. We can't SSH to our netapp, so those fields are blank.

File Sharing:
Connection Type: SMB
Share Name: MacPackaging
Port: 548

HTTP:
HTTP downloads are not enabled
Protocol: HTTP
Port: 80
Context: CasperShare
No authentication required
Everything else is blank.

Anyone using smb distribution points hosted on DFS shares?

so I raised a support call with JAMF on this topic and they confirmed any smb paths used for distribution points is not currently supported e.g. //<server>/path/to/share or (for dfs) //<domain>/root/path/to/share

Providing support for this would make casper much more flexible when it comes to fitting in existing environments (we have a mixture of windows dfs and net app filers)

I have raised a feature request (link below) so please vote on this if you are also experiencing this issue

https://jamfnation.jamfsoftware.com/featureRequest.html?id=500