NVP-vProxy: Backup failed to disable storage migration with SSL Certificate error

The backup session log shows:

YYYY-MM-DD HH:MM:SS INFO:   [75] Disabling storage migration of virtual machine ...
YYYY-MM-DD HH:MM:SS WARN:   [75] Error disabling storage migration:  VDDK Error: 1: Unknown error., retrying.
YYYY-MM-DD HH:MM:SS ERROR:  [75] Failed to disable storage migration for virtual machine "vm-47686": VDDK Error: 1: Unknown error.

The /opt/emc/vproxy/runtime/logs/vbackupd/vbackupd-vddk.log shows:

YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO VixDiskLib: VixDiskLib_PrepareForAccess: Prepare to access disk.
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO VixDiskLib: VixDiskLib_Connect: Establish connection.
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO VixDiskLib: Resolve host.
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO YYYY-MM-DD HH:MM:SS-07:00 error -[03176] [Originator@6876 sub=IO] HandshakeCb; <SSL(<io_obj p:0x00007f589401da58, h:14, <TCP 'VPROXY_IP_ADDRESS : 45566'>, <TCP 'VCENTER_IP_ADDRESS : 443'>>)>; error: N7Vmacore3Ssl18SSLVerifyExceptionE(SSL Exception: Verification parameters:
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO --> PeerThumbprint: 51:90:4F:AE:79:1B:93:12:CB:F1:40:B6:5B:E8:4A:90:F5:45:DD:10
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO --> ExpectedThumbprint: eb:29:e0:6f:35:3d:a1:72:50:6c:8e:ef:c1:b5:6d:df:b0:18:1c:0a
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO --> ExpectedPeerName: VCENTER_FQDN
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO --> The remote host certificate has these problems:
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO -->
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO --> * unable to get local issuer certificate)
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO --> [context]zKq7AVECAQAAABWX8QANLQAA5m4+bGlidm1hY29yZS5zbwAAr+ccAHldGwD+vRYAUPwpACKwKQAUsikAHvUrAJVvKwCYpysAz1E5AdqWAGxpYnB0aHJlYWQuc28uMAACbQEPbGliYy5zby42AA==[/context]
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO VixDiskLib: VixDiskLib_Connect: Failed to start session. Other error encountered: SSL Exception: Verification parameters:
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO PeerThumbprint: 51:90:4F:AE:79:1B:93:12:CB:F1:40:B6:5B:E8:4A:90:F5:45:DD:10
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO ExpectedThumbprint: eb:29:e0:6f:35:3d:a1:72:50:6c:8e:ef:c1:b5:6d:df:b0:18:1c:0a
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO ExpectedPeerName: VCENTER_FQDN
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO The remote host certificate has these problems:
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO
YYYY-MM-DD HH:MM:SS NOTICE: VDDK INFO * unable to get local issuer certificate at 4838.

The vCenter Certificates (Machine SSL Certificate, VMware Certificate Authority, STS Signing Certificate, etc.) were recently refreshed on the vCenter Server Appliance. The vProxy appliance has references to the old vCenter Certificate thumbprints and is unable to establish a connection.

The vProxy appliances Guest operating system should be restarted in the environment to refresh the vCenter certificate. Here is a general overview of the steps:

• Authenticate to the vSphere Web Client.
• From the vSphere Web Client, select "Power > Restart Guest operating system" for the vProxy appliance.
• Perform a test backup in the environment.