Reading Time: < 1 minuteA best practice is a method or technique that has consistently shown results superior to those achieved with other means, and that is used as a benchmark. In addition, a “best” practice can evolve to become better as improvements are discovered. But, as well described by Frank Denneman in his post, best practices are never absolute, they depends on your specific case.
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Browsing Posts tagged ESXi
Reading Time: 2 minutesIn 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 minutesSome 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 minutesThere 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: 2 minutesThe RDM disks are a feature of VMware vSphere (but was present also in Virtual Infrastructure) to make a “mapping” between a LUN (or logical disk) to a VM (is similar to a disk pass-through). This feature can be used in different cases, for example: to support disk larger than 2 TB (only in vSphere 5 with physical RDM) and to implement guest clustering with shared storage (still only with physical RDM). But there is an issue (or a feature :) ) that does not allow to add a RDM disk from the GUI for […]
Reading Time: 3 minutesIn a vSphere upgrade process, there are two different approach for the host upgrade: a fresh re-install or a in-line upgrade. In the VMware site there is an interesting post about this choice. The differences between an upgraded host and a freshly installed host are:
Reading Time: 3 minutesThe new major release of Citrix’s hypervisor was released on Sep, 30 2011 (XenServer 6.0 is here! ). For more info see also the Release Notes for Citrix XenServer 6.0. Architectural Changes: The Boston release is based on the open-source Xen 4.1 hypervisor. XenServer is another commercial product to ship with the Xen 4 hypervisor. For those of you who like to follow the open source world, Oracle VM 3 launched a few weeks ago, and is based on the Xen 4 hypervisor. Ubuntu Server 11.10 will soon follow with support for Xen 4, and […]
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