VMware download file and folder fails with couldn't download due to error: Ensure that Nginx is running and configured correctly on the selected MSDP storage server.

Problem

VMware downloaded files and folders failed from the NetBackup WebUI, and the web browser reports "Failed to get version from the Storage Platform Web Service. Ensure that Nginx is running and configured correctly on the selected MSDP storage server" and the OS version of the storage server is higher than RHEL9.

Error Message

Failed to get version from the Storage Platform Web Service. Ensure that Nginx is running and configured correctly on the selected MSDP storage server.

Cause

For the download file and folder option, the Instant Access feature is used. 

In storage servers which the RHEL OS version is higher than 9.0:

• The default OpenSSL version is higher than 3.0
• The nginx version is 1.20

This version of  nginx isn't compatible with OpenSSL 3. 

To check the openssl version of the storage server:

    # openssl version
    OpenSSL 3.0.7 1 Nov 2022 (Library: OpenSSL 3.0.7 1 Nov 2022)

To check the nginx version of the storage server:

    # nginx -v
    nginx version: nginx/1.20.1

Solution

Upgrade the nginx version to higher than 1.22.1, which is the minor version compatibale with OpenSSL 3.