SDDC/NSX Manager Upgrade Pre-check failed due to Backup never completes

VMware NSX

SDDC reports error "NSX backup check failed.Reason: Read timed out"
SDDC reports error "NSX Upgrade coordinator - Failed to suspend backup before upgrade"
NSX Manager backup task is running indefinitely. It never completes, nor fails
The UI may show a backup is in progress, "Cluster Backup in Progress"
On the Backup server, there have been no backups created for this duration, confirming that the backup task is stuck

SDDC Manager

VMware NSX

To resolve the issue:

1: Ensure the backup user is not locked:

Login to the SDDC Manager VM CLI as the vcf user and elevate to root user via the su - command.

faillock to check if the backup user locked

Use the following command to unlock the backup user account:

faillock --user backup --reset

2: Update the backup user password in case it's not match between SDDC Manager and NSX Manager.

3: Restart the following service on NSX Managers to stop NSX backup task

systemctl restart nsx-mp-api-server

4: Change the directory ownership or permissions in the path /nfs/vmware/vcf/nfs-mount/backup by comparing normal site.

chmod to change the permission

chown to change the user ownership

chgrp to change the group ownership

Example to change the ownership for the directory cluster-node-backups

chown backup cluster-node-backups

chgrp backup cluster-node-backups