PowerFlex 4.x - PowerFlex Management Platform - Static Route on MVMs Causes Error When Re-adding HCI Resource Group

Summary: Customers may encounter a static route configuration error when attempting to re-add an existing HCI Resource Group to PowerFlex Manager. This issue prevents the successful addition of the resource group and can block planned upgrades ...

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Symptoms

Scenario

When attempting to re-add an existing HCI Resource Group to PowerFlex Manager, an error message is displayed indicating a missing network for a specific destination IP. This error occurs on multiple ESXi hosts within the resource group.

Error encountered during the RG addition process due to static routes on Management VMs(MVMs), preventing PowerFlex Manager from configuring necessary network routes:

 

Multiple errors occurred. Expand the list to view the details of each error. (500)
Static Route configuration could not be completed due to missing network for destination IP 192.168.100.0. Please check pfx001-powerflex.dell.com. (VXFM00736)
Please look at the destination network settings and verify the netmask, subnet, or IP ranges include this IP 192.168.100.0. Please check pfx001-powerflex.dell.com.
Static Route configuration could not be completed due to missing network for destination IP 192.168.100.0. Please check pfx002-powerflex.dell.com. (VXFM00736)
Static Route configuration could not be completed due to missing network for destination IP 192.168.100.0. Please check pfx003-powerflex.dell.com. (VXFM00736)

Impact 

Prevents the successful addition of the HCI Resource Group to PowerFlex Manager, blocking planned system upgrades and impacting overall system management.

Cause

Conflicting static routes were configured on the Management VMs (MVMs), specifically a static route for the destination network `10.X.X.0/24` via an unintended gateway. This conflict prevented PowerFlex Manager from completing the necessary static route configuration for the resource group addition.

Resolution

1. Identify the conflicting static routes on the MVMs.

  • Run the ip route show command:
ip route show
default via 10.30.106.1 dev eth0
192.168.100.0/24 via 192.168.100.1 dev eth1

2. Remove the conflicting static routes that PFxM is using, by executing the following commands on each affected MVM:

  • sudo ip route del 192.168.100.0/24 via 192.168.100.1 dev eth1   
  • sudo sed -i '/192.168.100.0\\/24 via 192.168.100.1 dev eth1/d' /etc/sysconfig/network/routes

3. Verify that the static routes have been removed from both the current routing table and the network configuration files.

4. Re-attempt to add the existing HCI Resource Group using the PowerFlex Manager wizard.  Confirm that the wizard completes successfully without errors.

Additional Information

Impacted Version

PowerFlex Manager 4.5 / RCM 3.7.3.1

Fixed In Version

N/A - Configuration adjustment required.

 

 

 

 

 

Article Properties
Article Number: 000249264
Article Type: Solution
Last Modified: 19 Nov 2024
Version:  1
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