A storage administrator is upgrading Cisco NX-OS on a Cisco MDS switch. The administrator performs an ISSU upgrade following the configuration guide. While the install is proceeding, the administrator connects a new server to the switch, which cannot access storage. The existing servers continue to operate properly through the switch. Why is the new server failing to connect?
A. The fabric data plane resets as part of the upgrade process.
B. The new server is unable to log in to the fabric to receive an FC-ID.
C. The upgrade process disables any currently unused ports.
D. The zoning database is locked during the upgrade process.
