Dell EMC Powerscale- NDMP backup copy using higherend port

Hi ​@Robert.R 

Based on your description, the core issue is that NDMP Backup Copy jobs in CommCell 1 are failing because data movement is not occurring over the expected NDMP port 10000, but instead is using a higher-range port/interface. CommCell 2, with a similar configuration, does not have this problem.

Can you check the below?

1. NDMP Port Configuration and Firewall Rules

NDMP Control Port: NDMP connections typically use port 10000 for control. Data transfer, however, may use high-range dynamic ports unless explicitly configured.

Firewall Rules: Ensure that port 10000 is open bidirectionally between the MediaAgent and the PowerScale server for both CommCells. Also, verify that the required high-range ports (49152–65535 by default) are open if data transfer is expected to use them.

Verify NDMP Port Usage

On the MediaAgent, run a backup copy job and use netstat or similar tools to observe which ports are being used for NDMP connections.

Confirm if port 10000 is being used for control and which ports are used for data.

Test Connectivity:

From the MediaAgent, run:

telnet <PowerScale_IP> 10000 (should connect)

telnet <PowerScale_IP> <high_port> (if high-range ports are being used)

If port 10000 fails but high-range ports succeed, this indicates a firewall or routing issue.

Firewall and OS Port Allowance: Ensure both the OS firewall and any network firewalls allow port 10000 and the required high-range ports.

Regards,

Kalaivanan.