Dell PowerStore Installation and Service Guide for PowerStore 1000, 1200, 3000, 3200, 5000, 5200, 7000, 9000, and 9200

Remove an appliance from a PowerStore X model cluster

1. Under Hardware, select Appliances, and identify the IP address of the appliance with the Service Tag identified in Prerequisites.
2. Under Settings, select Network IPs, identify the Host Node IPs of the appliance.
3. If the appliance to be removed has VMFS volumes with internal host mappings, migrate the VMFS volumes to another appliance:
   1. Identify the related compute VMs and VMFS volumes on the appliance.
   2. Ensure that internal host mappings are defined between the VMFS volumes and the hosts on the destination appliance.
      If these internal host mappings do not exist, create the host mappings before continuing.
   3. Manually migrate the VMFS volumes from to the destination appliance using PowerStore Manager.
   4. vMotion the related compute VMs to the destination appliance.
      NOTE:Do not vMotion the vCLS VMs.
   5. Unmap the VMFS volumes from the appliance to be removed using the PowerCLI.
4. Migrate the virtual volumes for vCLS VMs on the appliance to another appliance in the cluster using PowerStore Manager.
   1. Under Storage, select Storage Containers, select the storage container that contains the virtual volumes for the vCLS VMs, and select Virtual Volumes.
   2. Select Show/Hide Columns and select the Appliance check box to display the appliances on which the virtual volumes are located.
   3. Identify the virtual volumes for the vCLS VMs that must be migrated.
   4. Select a virtual volume to migrate and select Migrate.
      NOTE:You can only migrate one virtual volume at a time.
   5. Select the appliance to which to migrate the virtual volume and click Next.
   6. Repeat the previous steps for each virtual volume in the storage container.
5. Disable support notifications on the PowerStore cluster as described in Disable support notifications.
6. Run the svc_appliance_provisioning script to disable resource balancing and prevent objects from being automatically created or placed on the appliance that you want to remove.
   1. Open an SSH client, and connect to the management IP address of the appliance to remove.
      NOTE:External SSH management access must be enabled on the appliance.
   2. Type the username and password of the service account to log in to the appliance.
   3. Run the following command to display the names of the appliances in the cluster:

      svc_appliance_provisioning list

   4. Run the following command, where appliance_name is the name of the appliance that you want to remove:

      svc_appliance_provisioning disable appliance_name

   5. Run the following command to ensure that the provision status of the appliance is disabled:

      svc_appliance_provisioning list

7. Identify the primary and secondary nodes of the appliance in PowerStore Manager.
   1. Under Hardware, select Appliances, and select the appliance to remove.
   2. On the Appliance Details page, select the Components card and select the Internal View tab.
      The node with the text (primary) is the primary node of the appliance, and the node without the text (primary) is the secondary node. The names of the nodes are Node A and Node B.
   3. Under Settings, select Network IPs and select the Management tab.
   4. Record the Host Node IP addresses of Node A and Node B on the appliance.
      • If the primary node on the appliance is Node A, the IP address of Node A is for the primary node and the IP address of Node B is for the secondary node.
      • If the primary node on the appliance is Node B, the IP address of Node B is for the primary node and the IP address of Node A is for the secondary node.
8. Perform the following steps on the vCenter Server to exclude the ESXi host on the secondary node of the appliance from the ESXi cluster:
   1. If there are user VMs on the secondary node of the appliance, vMotion the user VMs to another appliance in the cluster.
      CAUTION:Do not vMotion the vCLS VMs.
   2. Place the ESXi host on the secondary node of the appliance into maintenance mode.
      The controller VM is automatically powered off, and the vCLS VMs on the ESXi host are automatically migrated to another host.

      NOTE:If the ESXi host is unable to enter maintenance mode because of the vCLS VMs, manually power off the vCLS VMs to force the VMs to migrate to another host.
   3. Create a folder of the type New Host and Cluster Folder on the Datacenter.
   4. Move the ESXi host on the secondary node of the appliance to the new folder on the Datacenter.
   5. Take the ESXi host out of maintenance mode and power on the controller VM.
9. Wait 15 minutes, and then ensure that the secondary node is up and running in PowerStore Manager.
   Ensure that there are no active alerts on the secondary node:
   1. Under Hardware, select Appliances, and select the appliance that you want to remove.
   2. Select the Components card, select the Rear View tab.
   3. Expand BaseEnclousure, select the secondary node, and ensure that there are no active alerts.
   In addition, go to Monitoring > Events in PowerStore Manager and ensure that the following event is displayed for the secondary node:

   Event: NODE_IO_SERVICE_LEVEL.
   Event text: IO service level of the node has changed to ready
   

10. Perform the following steps on the vCenter Server to exclude the ESXi host on the primary node of the appliance from the ESXi cluster:
    1. If there are user VMs on the primary node of the appliance, vMotion the user VMs to another appliance in the cluster.
       CAUTION:Do not vMotion the vCLS VMs.
    2. Place the ESXi host on the primary node of the appliance into maintenance mode.
       The controller VM is automatically powered off, and the vCLS VMs on the ESXi host are automatically migrated to another host.

       NOTE:If the ESXi host is unable to enter maintenance mode because of the vCLS VMs, manually power off the vCLS VMs to force the VMs to migrate to another host.
    3. Move the ESXi host on the secondary node of the appliance to the new folder on the Datacenter, which was created in step 9.
    4. Take the ESXi host out of maintenance mode and power on the controller VM.
11. Wait 15 minutes, and then ensure that the primary node is up and running in PowerStore Manager.
    Ensure that there are no active alerts on the primary node in PowerStore Manager:
    1. Under Hardware, select Appliances, and select the appliance that you want to remove.
    2. Select the Components card, select the Rear View tab.
    3. Expand BaseEnclousure, select the primary node, and ensure that there are no active alerts.
    In addition, go to Monitoring > Events in PowerStore Manager and ensure that the following event is displayed for the primary node:

    Event: NODE_IO_SERVICE_LEVEL.
    Event text: IO service level of the node has changed to ready
    

12. Ensure that Node A is the primary node on the appliance to be removed.
    The factory reset of the appliance cannot occur unless Node A is the primary node of the appliance.
    1. Under Hardware, select Appliances, and select the appliance that you want to remove.
    2. Select the Components card, select the Internal View tab.
    3. Ensure that Node A is the primary node on the appliance.
       If the Node B is the primary node of the appliance, log in to the appliance using an SSH client and run the svc_node reboot local command to reboot Node B and make Node A the primary node.
13. If there still are storage objects on the appliance to be removed, use PowerStore Manager to migrate the storage objects to another appliance in the cluster or remove the storage objects from the appliance.
14. Remove the appliance from the PowerStore X model cluster using PowerStore Manager.
    NOTE:The system resets the appliance to original factory settings and powers it off during the removal process.
    1. Under Hardware, select Appliances.
    2. Select the check box of the appliance to remove.
    3. Click Remove.
       The Removing the Appliance dialog box is displayed.
    4. Click Remove.
    The appliance is removed from the cluster and reset to its factory default settings. The appliance can be rediscovered and deployed to a new or existing cluster after it is reset to factory default settings.

    NOTE:The factory reset of the appliance can take up to four hours to complete.