Articles by Deepak Prasad
define ephemeral disk in OpenStack and compare with persistent storage
Define ephemeral storage. Difference between root disk vs ephemeral disk in openstack? Ephemeral storage is non persistent storage unlike cinder swift storage.
How to create and set property of flavor in OpenStack with examples
In this article I will show you the steps to create and set property of flavor with examples. Use openstack flavor set --property for existing flavors
How to configure ipv6 address in Linux (RHEL / CentOS 7/8)
Configure IPv6 address using Network Manager (nmtui), CLI, Modify existing IPv6 address using nmci on Linux (RHEL / CentOS 7), Best practices for IPv6 usage
Solved: ironic node-delete is associated with instance
Here I have shared the steps to fix "ironic node-delete is associated with instance" where you fail to delete an ironic node accociated with an instance.
How to troubleshoot OpenStack ironic introspection
Troubleshoot OpenStack ironic introspection for issues like Invalid provision state for introspection, Look up error: Could not find a node for attributes.
How to create or configure NIC Teaming using nmcli (CentOS / RHEL 7/8)
Learn to configure NIC teaming on CentOS/RHEL 7 Linux node. RHEL 7 implements network teaming with a small kernel driver and a user-space daemon, teamd.
How to configure bridged network in virt-manager (CentOS / RHEL 7)
Steps to configure bridged network in virt-manager. Virtual Machine Manager provides a graphical tool for administering virtual machines for KVM, Xen etc
How to create or configure network bridge in CentOS / RHEL 7/8
configure network bridge by this step by step guide on CentOS or RHEL 7 linux, configure network bridge using NetworkManager TUI, nmtui.
Solved: vncserver service failed a configured resource limit was exceeded
vncserver service failed because a configured resource limit was exceeded tigervnc on RHEL 7, remove temporary files from under /tmp and /tmp/.X11-unix/.
Step-by-Step Tutorial: Install OpenStack on CentOS 7 using Packstack
Step by Step openstack installation Guide using packstack single node in centos or rhel 7 linux. Install Openstack on CentOS 7 using Packstack
Linux Interview questions and answers for experienced users
Here I have consolidated 29 linux interview questions and answers for experienced professionals working into Linux or System Administrator profile.
Shell scripting Interview questions with answers
Here I have consolidated some of the basic unix/linux shell scripting interview questions with their possible answers to help you practice.
OpenStack Interview Questions and Answers (Multichoice)
In this article I have shared multiple openstack interview questions and answers (multi choice) covering various areas of openstack project.
Check Openstack version and mapped release information
Is there any single command to check openstack version or release name and how is Red Hat Openstack version mapping done.
Solved 'No valid host was found. not enough hosts available'
Overcloud deployment fails with error message "No valid host was found. There are not enough hosts available" in Undercloud Openstack with Red Hat.