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Top25 Virtualization Blogs

Browsing Posts tagged ESXi

VMware vSphere 6 – vMotion everywhere

25 February 2015
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Reading Time: 8 minutes After the new Virtual Volumes, the most “spoilered” features of the new VMware vSphere 6.0 was probably the new vMotion that allow VMs to move across boundaries of vCenter Server, Datacenter Objects, Folder Objects and also virtual switches and geographical area. VMware vMotion was probably the first important virtualization related features that make important VMware (and its product) but, much important, that make relevant the virtualization approach: having VM mobility means handle planned downtime and also workload balancing. Now VMware reinvent vMotion to become more agile, more cloud oriented: breaking the boundaries and going outside […]

VMware, vSphere

VMware vSphere 6 – The new FT feature

20 February 2015
35 comments

Reading Time: 5 minutes As you probably now the vSphere Fault Tolerance features has been unchanged from the first version (in vSphere 4.x)… untill now. With vSphere 6.0, recently announced, there is a new Multi-Processor FT (SMP-FT) features that replace the previous one and brings now continuous availability protection for VMs with up to 4 vCPUs! It’s not something news in the virtual environments… several years ago Marathon announced the everRun MX, that was the first solution, but only for Citrix XenServer. Initial plans of this producs expect also a vSphere version, but the company was then acquired by […]

VMware, vSphere

VMware vSphere 6 – Installation

13 February 2015
22 comments

Reading Time: 10 minutes The new VMware vSphere Suite 6.0 brings several changes and new features, but the installation phases remain still similar with the previous versions. The big changes are in the vCenter deployment type both for the installable and the appliance version and the new VUM client… all the other parts of the installation remain similar  with only few notes.

VMware, vSphere , ,

Issue in VMware vMotion that stop at 14%

Reading Time: 2 minutes Some weeks ago I’ve got an issue in a VMware vSphere 5.1 environment with vMotion that stop each operation at 14% with some strange errors. Also there were several VMware KB articles related to this issues, with different reasons. The error message was simple: Timed out waiting for migration start request. So the closest KB article was: vMotion fails at 14% with the error: Timed out waiting for migration start request (2068817). But none of the possible solutions were applicable to my case.

vSphere

Installing Fusion-IO on ESXi hosts

25 April 2014
1 comment

Reading Time: 7 minutes Fusion-IO is a well-know company in the host-side flash solutions to accelerates databases, virtualization, cloud computing, big data, and the applications without change your storage. Their In-Server Acceleration products are impressive (sometime also in the price) and can provide up to 10.24TB of flash to maximize performance for large data sets, or also solutions for blade server (with the ioDrive2® Mezzanine). Thanks to Fusion-IO Italy I’ve got the opportunity to test thee Fusion-io 410GB ioScale, the smallest model of this product line (ioScale products use MLC technology and are in these capacities: 410GB, 825GB, 1650GB, […]

vSphere ,

Installing Dell OMSA 7 on ESXi 5.5

21 February 2014
2 comments

Reading Time: 2 minutes Some years ago, I’ve write some posts on how install Dell OpenManage on VMware ESXi. The OpenManage Server Administrator (OMSA) is a Dell tool really useful for a central management or to be integrated in other Dell’s management tools. There are different options, but basically the most used ways are: Use the Dell ESXi custom image that already include also a version of OMSA (not necessary the latest) Use the command line Use VMware Update Manager The last option is my preferred option because is really faster and simplest.

DellEMC, Highlights ,

VMware vSphere 5.1 – PSOD during host reboot

18 January 2013
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Reading Time: < 1 minute I’ve got a case of a host upgraded to VMware vSphere 5.1 with a determinist PSOD during each host reboot or shutdown (I’ve found the issue during the first patch update). No difference if hosts where rebuild from scratch with a similar configuration. And no difference with all recent ESXi patches. After a full upgrade of each BIOS, firmware and drivers (and of course the HCL verification) I’ve only found the KB 2038281 (ESXi 5.1 host fails with a purple diagnostic screen when Beacon probing is enabled). Syntoms where similar: Cannot reboot a ESXi 5.1 […]

VMware, vSphere

Analysis of different hypervisors

21 March 2012
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Reading Time: 4 minutes I’ve read some posts (see in the bottom of this post for the references) and I notice how the  hypervisor comparison and choosing criteria are still a interesting trend and not only a marketing battle between different vendors (and maybe there will be more interest will be on this aspects with the release of Windows Server 8). But in several cases the comparison is limited to the hypervisor technical characteristics (and I’ve already written something about Hyper-V 3.0, XenServer 6.0 and RHEV 3.0) without considering (except in some cases) that the those are only one […]

VMware , , ,

ESXi – Partitions layout of system disk

20 December 2011
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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 […]

Highlights, VMware, vSphere

ESXi Performance Graphs – VM Power

9 December 2011
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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):

vSphere

Upgrading to ESXi 5 vs. doing a Fresh Install

23 November 2011
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Reading Time: 3 minutes In 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:

Highlights, vSphere , ,

VMware vSphere – 4.1 Update 2

27 October 2011
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Reading Time: 2 minutes Source: VMware vSphere 4.1 Update 2 Released The VMware vCenter Server 4.1 Update 2 release offers the following improvements: Support for new processors: vCenter Server 4.1 Update 2 supports hosts with processors on AMD Opteron 6200 series (Interlagos) and AMD Opteron 4200 series (Valencia). Note: For the AMD Opteron 6200 and 4200 series (Family 15h) processors, vCenter Server 4.1 Update 2 treats each core within a compute unit as an independent core, except while applying licenses. For the purpose of licensing, vCenter Server treats each compute unit as a core. For example, although a processor […]

vSphere , ,
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