Issue#672: Updating Limitation for Single Storage Node

Signed-off-by: cgoveas <cassandra.goveas@dell.com>

control_plane/roles/provision_idrac/tasks/update_firmware.yml

@@ -66,8 +66,8 @@
         - idrac_error_message in update_firmware.msg
 
     - name: Firmware update job failed
-      fail:
+      debug:
         msg: "{{ firmware_job_fail_msg }}, Error: {{ update_firmware.msg }}"
       when:
         - update_firmware.failed
-        - idrac_error_message not in update_firmware.msg
+        - idrac_error_message not in update_firmware.msg

docs/README.md

@@ -208,6 +208,7 @@ If hosts are listed, then an IP address has been assigned to them by DHCP. Howev
 * In a single node cluster, the login node and Slurm functionalities are not applicable. However, Omnia installs FreeIPA Server and Slurm on the single node.  
 * To change the Kubernetes version from 1.16 to 1.19 or 1.19 to 1.16, you must redeploy the entire cluster.  
 * The Kubernetes pods will not be able to access the Internet or start when firewalld is enabled on the node. This is a limitation in Kubernetes. So, the firewalld daemon will be disabled on all the nodes as part of omnia.yml execution.
+* Only one storage instance (Powervault) is currently supported in the HPC cluster.
 
 # Contributing to Omnia
 The Omnia project was started to give members of the [Dell Technologies HPC Community](https://dellhpc.org) a way to easily set up clusters of Dell EMC servers, and to contribute useful tools, fixes, and functionality back to the HPC Community.