VMware vMotion – Error “Different offload or security policies”

This unable to migrate error indicates that the source and destination servers have different security or offload settings configured on the virtual switch or portgroup that the virtual machine is connected to and usually is related to Traffic Shaping options enabled not on all physical hosts. Read More …

Microsoft – Changing SID of cloned VMs

On the machine level, every computer is identified by a unique value; named Security ID or SID. SID is calculated in the process of the installation of every Windows machine. Whether the computer is part of the workgroup (or it’s just a stand-alone computer), the value of SID is not crucial. Read More …

VMware vCenter – Enable Single Sign On (SSO)

Platform Service Controller is a new component in VMware vSphere. The PSC contains all the services that vCenter needs for its functions including Single Sign-On (SSO). This post describes how to configure AD authentication in vCenter Server. Read More …

CentOS / RHEL 7 – Regenerate UUID for Network Cards (Physical and Virtualized Environments)

Usually, when cloning VMs on virtualized systems (Hyper-V or VMware, for example) an issue could occur related to vNICs: a vNIC could be renamed and so no more the same of the old VMs (obviously). Read More …

VMware – OVF ha un manifest file non valido

Spesso, in ambienti VMware complessi si adopera molto la funzionalità di estrazione delle virtual machines in formato OVF/OVA, per poter trasferire tali VM su altri cluster VMware o semplicemente adoperarli come template su altri sistemi di virtualizzazione. Read More …

VMware – The OVF package is invalid and cannot be deployed

During a VM migration on a VMware ESX infrastructure, using OVA/OVF formats, VMware importing process could be difficult due to the possibility to deploy the OVF/OVA package, and the vSphere Client fails. Read More …

VMware ESX – Recreate a VMX file for a VM

On a VMware ESX infrastructure (especially during VM migration between two not connected ESX) there could be a tedious scenario: once you have extracted a VM from the old ESX and imported to the new one you realize that the VM’s VMX file is probably corrupted. Read More …