To resolve the issue of a new Windows host being unable to connect to a volume on the E-Series system when all other hosts can, follow these steps:

Obtain the WWPN for the Windows HBA (B):The Worldwide Port Name (WWPN) is essential for zoning and establishing communication between the host and the storage system. Ensure you have the correct WWPN for the new Windows host’s HBA.

Create a single-initiator zone with the host and E-Series system (D):Zoning is crucial in SAN environments to control and secure the data paths. Create a single-initiator zone that includes the WWPN of the Windows host and the target ports of the E-Series system. This ensures that the host can see the storage.

Add a zone to the active zoneset (E):After creating the necessary zone, it needs to be added to the active zoneset on the Cisco MDS switch. The zoneset must then be activated for the changes to take effect, enabling the new host to communicate with the E-Series system.

These steps ensure that the new Windows host is properly zoned and can access the storage volumes without disrupting the existing configurations.

References:

NetApp E-Series SANtricity Storage Manager Documentation

Cisco MDS Switch Configuration Guide