Management domain pre-check failed for NSX-M with ERROR "Check if backup is configured and at least one backup is available"

Products

• VMware Cloud Foundation
• VMware SDDC Manager

Issue/Introduction

• VCF Management domain pre-check failed at Backup availability check for NSX-V Manager with ERROR

  Check if backup is configured and atleast one backup is available

• Error in SDDC UI

  Error Description: 
  400 Bad Request: [
  Details Unable to connect to server xx.xxx.xx.xx at xx. Either server details are invalid or invalid credentials are presented.
  150502vsm-appliance-mgmt].
  
  Impact:
  High: Do not perform upgrade without addressing this issue.
  
  Remediation:
  Check if the sddc-manager vm is reachable from NSX Manager and there are no SSL issues.

 

Environment

VMware Cloud Foundation

Cause

Password for SDDC backup user was expired.

Resolution

Reset SDDC Backup user password, Steps can be followed as below:

1. SSH to SDDC Manager with VCF user and switch to root account.

2. Type command: chage -l backup to verify backup user account ageing information, following output is an example where in backup user password is expired.

   root@svpctyvxsddc01 [ /home/vcf ]# chage -l backup Last password change                                    : MMM DD, YYYY Password expires                                        : MMM DD, YYYY Password inactive                                       : never Account expires                                         : never Minimum number of days between password change          : 0 Maximum number of days between password change          : 365 Number of days of warning before password expires       : 7 root@svpctyvxsddc01 [ /home/vcf ]#

3. Reset backup user password 

4. you can perform below using SDDC manager root user

   passwd backup

5. Verify backup user password has been reset and its ageing information

   root@svpctyvxsddc01 [ /home/vcf ]# chage -l backup Last password change                                    : MMM DD, YYYY Password expires                                        : MMM DD, YYYY Password inactive                                       : never Account expires                                         : never Minimum number of days between password change          : 0 Maximum number of days between password change          : 365 Number of days of warning before password expires       : 7 root@svpctyvxsddc01 [ /home/vcf ]#

6. (Conditional) Additionally, Login SDDC manager database, and verify Entity ID for backup user is matching with SDDC manager ID. If yes, proceed to run pre-check to verify if issue is resolved or if ID is not matching, then follow steps updated in troubleshooting article Check for password validity of backup user to update Entity ID. Commands to login to SDDC-M platform database and to validate entity ID are below:

   psql -h localhost -U postgres -d platform
   

   select * from credentials where username='BACKUP';

Additional Information

Impact/Risks:
SDDC Manager upgrade blocked due to pre-check validation failed.