Unrecognized or unknown storage systems issue
The VSC dashboard of the virtual appliance for Virtual Storage Console (VSC), VASA Provider, and Storage Replication Adapter (SRA) displays alerts about unrecognized or unknown storage systems if authentication fails for any storage system or if any storage system is not configured in the vCenter Server.
About this task 
This issue might be caused if the storage system credentials or the storage systems are updated in ONTAP, but are not updated in the vCenter Server. When NFS datastores are mounted over a private network or on any non-NetApp storage system in the vCenter Server, VSC discovery lists the datastores as unknown.
Storage systems that have IPv6 addresses are listed as unrecognized.
Steps 
1.
2.
3.
If the storage system credentials are not updated in the vCenter Server, you must add the credentials to your vCenter Server.
b.
Enter the appropriate credentials in the Modify Storage Systems dialog box, and then click OK.
a.
Right-click the storage system with unknown status, and identify the error.
If the alert is displayed because the storage system is not added to your vCenter Server, then you must add the storage system to your vCenter Server.
b.
Click , and then add the required details of the storage system in the Add Storage System dialog box.
c.
Parent topic: Host configuration and performance monitoring using the VSC dashboard