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Installing Fusion-IO on ESXi hosts

25 April 2014
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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
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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.

DellTechnology ,

Hyper-V 2012R2 vs. vSphere 5.5

20 September 2013
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Reading Time: 9 minutes Now that both Microsoft and VMware have officially announced the new released of their virtualization products it’s possible make an homogenous comparison between Hyper-V 2012 R2 (the fourth generation of Hyper-V) and vSphere 5.5. VMware vSphere 5.5 introduces several news and scalability improvements, on the other side Microsoft Hyper-V 2012 R2 consolidate its features and improve what was already existing in the 2012 version, with a limited (but significant) new features. For example now, finally, some VMware old date features are mainstream also in Hyper-V, like VM hot cloning, hot disk resize (in this case […]

Microsoft, VMware ,

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
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