VMware template creation can be automated using packer. VMware Virtual Machine deployments are very faster because of the template based VM build. But due to rapid development and fast-paced Operating system releases, we might need to build multiple templates and keep it ready for deployment. A customer might ask different operating system release and you […]
VMware-Guests
Packer Automation – Build Redhat/CentOS VM on VMware vSphere
In this article, we will be walking through the building of Redhat Enterprise Linux 7/CentOS 7 VM using ISO on VMware vSphere environment. Packer is very useful to build your base images on the cloud and on-premise. Packer is an opensource tool and developed by HashiCorp. HashiCorp owns very famous tools like Vagrant, Consul, and […]
Virtual Machine Live Migration – How it works ?
Virtualization’s revolution has pushed many technical challenges from “impossible” category to the “possible” category. Live Guest OS Migration can be considered as one of the major benefits of the OS virtualization. Migrating the virtual machine from one host to another host without downtime facilitates fault management, load-balancing, and low-level system maintenance. It has eliminated all difficulties faced […]
How to Measure the bandwidth between Linux / Solaris hosts ?
All the new servers are shipping with 10 Gbps built-in network adapters . At the same time, servers are virtualized and one physical server may hosts many virtual servers. For an example, VMware ESXi hypervisor will be directly installed on physical server and multiple VM’s will be created on top of that. So all the VM’s will share the same 10Gbps […]
VMRC – Standalone VMware Remote Console
Due to NPAPI (Netscape Plugin Application Programming Interface) deprecation on all the modern browsers , VMware need to find the alternate solution to use the vSphere Web-client for launching the VM console, upload & download the files from datastore and use of windows authentication on the browser(To use windows login in browser). According to the Google announcement, […]
Dynamically Adding Memory CPU to VM on VMware
VMware vSphere’s hot-add Memory and hot-plug CPU functions allow you to add the CPU and Memory while virtual machine is up and running. It will help you to add the additional resources whenever required and no need to bring down the VM for each time.But you can’t remove the resources once you have added the […]
How VMware vSphere is saving physical memory ?
There are lot of discussions is going on the blogs,social media’s about the vSphere’s VM memory management. So i had just came up with VM’s memory analysis on the last article. But i haven’t explained the memory saving techniques on that article. Here we are going to discuss about that. If you look at the […]
Veeam – How to backup and restore Solaris/Linux guests using veeamzip ?
Veeam Backup & Replication is one of the leading backup software for VMware vSphere/Hyper-v environments.Compare to other traditional backup softwares, Veeam is very fast to recover the guest OS irrespective of guest filesystem type on VMware vSphere environment. In last weekend ,one the Guest OS was removed accidentally but we had good veeamZip backup file […]
How to disable control Alt Delete on VMware Linux Guests ?
I just want to share about the incident that happened on our VMware vSphere environment last week. In our environment, we have mix of windows and Redhat Linux guest operating systems that are running on VMware ESXi . One of the Redhat Linux server rebooted automatically and the root cause was that some one send […]
How to generate crashdump of VMware Guests using snapshot ?
Root cause analysis is one of the toughest job.If its come to operating system, We mostly engage the Operating system vendors to find the root cause by analyzing the system logs and crashdump.The system logs will not alone help you to identify the root cause all the time and you need crashdump very badly. How the […]