Error GSVX493A during SYSVIEW VTAM Access

Products

• SYSVIEW Performance Management

Issue/Introduction

When attempting to invoke the SYSVIEW panel through a VTAM terminal, the user receives the following error message:
`GSVX493A Userid not authorized for application ####SYSV`

This typically occurs even if no recent changes or maintenance have been applied to the SYSVIEW environment.

Cause

The error indicates an authorization failure within the External Security Manager (ESM) such as RACF, ACF2, or Top Secret. The user ID lacks the necessary permissions to access the VTAM application resource (`####SYSV`) or the required security facility.

Resolution

To resolve this issue, coordinate with your Security Administrator to perform the following checks and updates:

1. **Audit Security Logs:**
   Check security audit logs (e.g., SMF, TSSUTIL, or ACFRPTSL) for "Not Authorized" violations recorded at the time of the login attempt.

2. **Verify Application Access:**
   Ensure the User ID has **READ** access to the VTAM application resource (typically `####SYSV`) in the `VTAMAPPL` (or equivalent) resource class.

3. **TSS Facility Requirement (Top Secret Environments only):**
   If using Top Secret, the User ID must have the `GSVX` facility added to its security profile.

4. **Internal SYSVIEW Security:**
   If external security permissions are confirmed as correct and no violations are found in the logs, investigate the internal SYSVIEW security group settings to ensure the user is correctly mapped.