VMware

Quick VMotion in VMware

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I ran into an issue today where I was unable to VMotion a VM due to host issues. While troubleshooting, I remembered how Microsoft first dealt with its inability to support VMotion – Quick VMotion.The idea is that instead of migrating the VM while online, pause the VM, then migrate it, then restart the VM […]

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VCP5 – Configure network security policies

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There are 3 basic network security policies: Promiscuous mode, MAC address changes, and Forged transmits. These policies allow for customization of the networking layer to allow network sniffing, clustering, and load-balancing Changing policies on a Distributed Switch Open vSphere client and select Networking Right-click the Port Group and select Edit Settings Under Policies | Security, […]

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VCP5 – Enable Lockdown Mode

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Lockdown mode blocks direct access to the ESXi host and forces all configuration to be done via the Virtual Center. This can be used to secure your VMware environment and ensure security protocols are followed. Enabling Lockdown Mode via DCUI Log onto the ESXi host console as root Select Configure Lockdown Mode Use the spacebar […]

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Enable/Configure/Disable services in the ESXi firewall

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Unlike prior versions of ESX, v5 uses an XML file to describe the firewall configurations. These files are stored in the /etc/vmware/firewall directory and are automatically loaded. Firewall rules should be installed as part of a VIB package.More information on creating rules: http://pubs.vmware.com/vsphere-50/index.jsp?topic=/com.vmware.vsphere.vcenterhost.doc_50/GUID-E1D90120-73EB-4B00-9F89-8650EBE911F7.html Once installed, the firewall rules and service is managed via the vSphere client. Open vSphere […]

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VCP5 – Describe how permissions are applied and inherited in vCenter Server

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Permissions in vSphere are applied on managed entities (datacenters, folders, VMs, etc…) Permissions are propagated from the managed entity to child identities. Permissions applied at the same level are summed to include both sets of permission.  Unlike other permission inheritance schemes (which sum permissions at different levels), permissions applied at lower levels over-ride inherited permissions.  Permissions applied […]

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VCP5 – Upgrade VMware Tools / Virtual Machine hardware

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This is a two-fer, two objectives listed in 1 post (since they are generally simple tasks). Upgrading tools and hardware manually: In vSphere, open VMs and Templates and select the VM Right-click the VM and select Guest | Install/Upgrade VMware Tools Select Automatic Tools Upgrade and click OK This will upgrade the tools and reboot […]

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VCP5 – Upgrade from VMFS3 to VMFS5

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Upgrading from VMFS3 to VMFS5 is seamless and can be performed online with active VMs. Note however, that there are drawbacks to upgrading to VMFS5: Datastores are accessible to ESXi 5 hosts only The upgrade process will not take advantage of some of the VMFS5 improvements (such as universal block size) Upgrading to VMFS5 In […]

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VCP5 – Upgrade a vNetwork Distributed Switch

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There are 3 versions of vNetwork Distribute Switches available: 4.0, 4.1, and 5.0. Each version provides new functionality, but also limits the interop with older versions Upgrade Distributed Switch In vSphere, browse to Networking Select the switch and on the Summary tab, click Upgrade Select the upgrade version and click Next Confirm no hosts report […]