Dell PowerFlex 4.5.x Administration Guide

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Managing external changes

If you make manual changes outside of PowerFlex Manager, you might need to perform some steps within PowerFlex Manager to ensure that the external changes are reflected within the user interface and the environment is kept in a healthy state.

The following table describes common tasks for managing external changes and what steps to take in PowerFlex Manager for each task:


If you have...	Do this in PowerFlex Manager...
Manually added VMware NSX to a cluster outside of PowerFlex Manager	Click Update Resource Group Details on the resource group, so it will correctly reflect the environment with VMware NSX, which will be in lifecycle mode.
Manually replaced a node outside of PowerFlex Manager for a resource group in PowerFlex Manager	Remove the node from the resource group. On the Lifecycle > Resource Groups page, select a resource group. On the Resource Group Details page, under More Actions, click Remove Resource. Remove the node from the list of resources. On the Resources page, click the All Resources tab. From the list of resources, select the resource, and click Remove. Discover the new node. On the Resources page, click Discover on the All Resources tab. Update the resource group details. On the Lifecycle > Resource Groups page, click Update Resource Group Details.
Manually created additional VLANs on the VDS in vCenter outside of PowerFlex Manager	Remove the resource group. On the Resource Group Details page, click Remove Resource Group under More Actions. When you click Remove Resource Group, do not select Delete Resource Group as the Resource Group Removal Type. This action completely tears down the resource group and makes configuration changes to the nodes, switch ports, virtual machine managers, and PowerFlex. Instead, select Remove Resource Group as the Resource Group Removal Type. Then, to keep the nodes in the inventory, select Leave nodes in PowerFlex Manager inventory and set state to and choose Managed. Rediscover the resource group. On the Lifecycle > Resource Groups page, click +Add Existing Resource Group. If you do not choose the correct options when you remove the resource group, you could tear down the resource group and destroy it, or leave the servers in an unmanaged state, and not be able to add the existing resource group.
Manually created volumes outside of PowerFlex Manager	Click Run Inventory on the Resources page to update the inventory. Then, click Update Resource Group Details on the Lifecycle > Resource Groups page for any resource group that requires the updated volumes.
Manually deleted volumes outside of PowerFlex Manager	Click Run Inventory on the Resources page to update the inventory. Then, click Update Resource Group Details on the Lifecycle > Resource Groups page for any resource group that requires updated information about volumes deleted. PowerFlex Manager displays a message indicating that the volumes have been removed from the resource group.
Manually added nodes outside of PowerFlex Manager	Click Run Inventory on the Resources page to update the inventory. Then, click Update Resource Group Details on the Lifecycle > Resource Groups page for any resource group that requires the updated nodes.
Manually removed nodes outside of PowerFlex Manager	Click Run Inventory on the Resources page to update the inventory. Then, click Update Resource Group Details on the Resource Groups page for any resource group that requires updated information about nodes deleted. Then, manually remove the resource on the Resources page by clicking the All Resources tab, selecting the resource, and clicking Remove.
Renamed objects such as VMware ESXi host, volume, datastore, VDS, port group, data center, cluster, and so forth	Click Run Inventory on the Resources page to update the inventory. Then, click Update Resource Group Details on the Lifecycle > Resource Groups page for any resource group that requires the updates. Note that vCLS datastore names are based on cluster names, so any change to a cluster name renders the vCLS datastore un-recognizable. If you change the cluster name manually for a deployment, the datastore name hosting the vCLS VMs needs to be updated. You need to change the vCLS datastore name to match the new cluster name and then perform an Update Resource Group Details operation. For example: Existing cluster name: `cluster1` vCLS datastore name: `powerflex-cluster1-ds-1` Updated cluster name: `cluster1-new` vCLS datastore name: `powerflex-cluster1-new-ds-1`
Manually changed the IP address for a switch	Remove the switch. On the Resources page, click the All Resources tab. From the list of resources, select the switch, and click Remove. Rediscover the switch. On the Resources page, click the All Resources tab and click Discover. If the IP address is in use, remove the resource group and add it again. On the Lifecycle > Resource Groups page, click +Add Existing Resource Group.
Created new objects on the Block or File tab	Click Run Inventory on the Resources page to update the inventory. Then, click Update Resource Group Details on the Lifecycle > Resource Groups page for any resource group that requires the updates.