Browsing Posts in VMware

Reading Time: 3 minutes In ESXi the partitions schema is automatically defined by the installation process and there is no way to modify it (you can only choose where install the hypervisor). There is a great post from Rickard Nobel (ESXi 5 partitions) that explain the structure of the partitions, their size and their purpose. But it does not explain how to get this information. To see the partition layout in ESXi 5, the fdisk command will not work on new GTP disk (this type is used for all new disks and for disks that are extended to more […]

Reading Time: 1 minute As you know, several commands from local CLI (via the ESXi shell or TSM technical support mode) are changed in latest version of ESXi (in the new ESXi 5 most are replaced by the new esxcli command). One command that was alredy replaced in ESXi 4.1 was the vmware-cmd command. A new vim-cmd must be used instead (as as described by William Lam in VMware vimsh and vim-cmd). The typical use of vmware-cmd command was get/change the state of a VM and register a VM. About the state of a VM, the VMware KB1014165 (Powering off […]

Reading Time: 2 minutes In the recent hours there were a lot of changes in the View Clients with new releases: New VMware View Clients for the Holidays – Mac, Linux, iPad and Android! View Client of iPad http://www.vmware.com/it/products/desktop_virtualization/view/ipad-client.html There is the new 1.3.0 version (Dec, 16) with the following changes: Connect iPad to up to 1080p (1920×1080) external displays and TVs and leverage Presentation Mode to view more of your View virtual desktop Support for virtual higher resolutions to scroll a larger screen resolution display on a smaller resolution screen Improvements to PCoIP bandwidth usage Numerous bug fixes […]

Reading Time: 2 minutes In a previous post I’ve describe how install the Dell OMSA package with VUM on ESXi 5. The Dell Open Manage (OMSA) is a useful tool (of course for physical Dell’s servers) for different reasons, like for example: configure and manage the RAID controller (for standalone servers and/or for local storage) and configure the (i)DRAC without reboot the host and enter in the POST menu (or without the physical access at the front panel). I think that the VUM approach is the simple and faster way, but some days ago I’ve got a standalone server, […]

Reading Time: 3 minutes Some weeks ago I learn a new curios thing in a thread in the VMware Community: also the latest version of ESXi still have a VNC Server for the VM console that can be used with a common VNC connection as described in the old KB1246 (Using a VNC Client to Connect to Virtual Machines) related to the VMware GSX Server product! Note: as written in the KB VMware does not support running virtual machines with a VNC client. The right client to access the VM console is still the vSphere Client (or the Web […]

Reading Time: 2 minutes There is an performance monitor at VM level that show always a null value: it’s the VM Power Graph. The same monitor at host level show the power usage of the specific host. But by default, the power usage of the VMs are not calculated. To enable this experimental feature you must change an advanced parameter (Power.ChargeVMs) on each host (by default, as show in the picture, is zero… it must be changed to 1):

Reading Time: 3 minutes With a vSphere 5 upgrade there is an important vDesign decision: if you already have some VMFS3 datastores could be better upgrade them to the new version of build new datastores directly with VMFS5? The upgrade procedure is quite fast and friendly and could be applied to a live datastore, so seems that there isn’t a big different between an upgrade or a clean format. But usually the recommendation is to re-format each LUN to VMFS-5 rather than upgrade it. This will fix a number of issues, including:

Reading Time: 3 minutes One of the “issue” with vmdk in thin format is that they start “small” and then grow when you add new data… But when you delete some data, the vmdk file size is not reduced. To be honest this issue is more related to the guest file systems that does never delete the block data, but only the metada (or some of them). Of course at guest OS level you will see the right disk usage, but this will probably not match the one that you see at VMware level (that usually will be bigger).

Reading Time: 2 minutes As described in the  release notes, one of the new features of View5 is the certificate check from the View Client (similar as the certificate check of the vSphere Client): Updated client certificate checking for View clients – View clients now follow the well-known browser model for handling certificates, displaying errors detected in the certificate presented by View Connection Server, or in the certificate trust chain. Administrators can set the Certificate verification mode group policy to enforce strict certificate checking; if any certificate error occurs, the user cannot connect to View Connection Server. Alternatively, administrators […]

Reading Time: 2 minutes One possible issue after a vSphere 5 upgrade using an in-place upgrade of vCenter Server could appear when you forget to remove the Converter Enterprise plugin (and/or the Guided Consolidation plugin). As you know some products has been removed from vSphere 5, and their plugins may remain in a “orphan” state. The result of this issue is that you will have a “broken” plugins list (with some plugins that are no more available) and also a wrong vCenter health status, due to some services that are no more existing:

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