The following permissions are needed by the HADHelper service account when attempting to online the Lanman resource

1. Act as part of the operating system
2. Back up files and directories
3. Adjust memory quotas for a process
4. Restore files and directories
5. Log on as a service

To verify if the above permissions are assigned to the HADHelper service, run the command: hadhelper /showconfig

Sample output: 

C:\>hadhelper /showconfig
Logon user  = testlab\Administrator.
Security ID = S-1-5-21-1595371054-3739099747-1257379597-500.

The user has following privileges:
 * SeTcbPrivilege (Act as part of the operating system).
 * SeBackupPrivilege (Back up files and directories).
 * SeIncreaseQuotaPrivilege (Adjust memory quotas for a process).
 * SeRestorePrivilege (Restore files and directories).
 * SeServiceLogonRight (Log on as a service).

'*' denotes permissions required for HADHelper service.

The command completed successfully.

If there is a need to reconfigure the HADHelper account to update it with the required permissions or to change the account used by HADHelper, run the command: hadhelper /configure /user:<domain\username>

Note: Once the command is run, it will prompt to enter the password for the username. 

Sample output:

C:\>hadhelper /configure /user:testlab\mylabuser
Password:

The HADHelper service is successfully configured.

Note: After successful completion of the command, the user will be auto-assigned all the required privileges. The same can be confirmed by running the command: hadhelper /showconfig

This article details the permissions and rights required by the Veritas Cluster Server Helper service (HADHelper) for InfoScale for Windows. The HADHelper service account is used by Veritas Cluster Server (VCS) to perform DNS and Active Directory (AD) updates via the Lanman resource.