ESXi - How does the dual bank work?

As written in the previous posts, in the ESXi installation there are two copy of the system image located in two different partitions (see Partitions layout of system disk and More on partitions posts). The actual system image is located on the first 250 MB partition, formatted with plain old FAT16 filesystem, but using a special pseudo-filesystem on it (see VisorFS: A Special-purpose File System for Efficient Handling of System Images). The image itself, s.v00, is a 124 MB compressed file, which is decompressed on boot and contains the hypervisor operating system. Note that the compressed image is larger in 5.0 ...

Read More

Why Dynamic Disks are a bad choice

Microsoft Windows Dynamic Disks (or Dynamic Volumes) are an abstraction layer (introduced in Windows 2000) over the partitions (similar to the LVM layer on Linux environment) to decoupled the volumes (with their NTFS data) from the disk partitions and have a greater flexibility, like hot-extend a volume by simple add new partitions (but also several other advantages). But in a virtual environment there are other way to handle disk flexibility, like hot-extend a virtual disk at hypervisor level (for VMware this feature was introduced in VI 3.5U2)... so there is no need to use dynamic disks at guest level. The only ...

Read More

Purging old data from a vCenter Server DB

In the previous post we have talk about the VMware Horizon View Event database and how purge the old data in order to free some space. You can have similar issue also with the VMware vCenter Server database, considering that it can continuous grow due to the statistics and also due to the events/tasks. In really small system a simple solution could be re-install a fresh version of vCenter Server (maybe during an upgrade) and re-create all the configuration stored only in the vCenter Server database. But in several cases this approach is not realistic. Again there isn't a pre-build maintenance ...

Read More

How startup and shutdown a vSphere based infrastructure

As written in a previous post, starting from vSphere 5.0U1 in a HA cluster the VM Startup & Shutdown ESXi host properties is disabled. Anyway wasn't supported, because according with the vSphere Avalability Guide and also the KB 850 (Automating the process of starting and stopping virtual machines on VMware ESX): The Virtual Machine Startup and Shutdown (automatic startup) feature is disabled for all virtual machines residing on hosts that are in (or moved into) a vSphere HA cluster. Automatic startup is not supported when used with vSphere HA. So, how it's possible handle a correct poweron and shutdown sequence of your infrastructure? The ...

Read More

VMware View 5.1 – Disable the certificate warning

One year ago, I've described how to disable the certificate warning in the Windows View Client 5.0, by using GPO or a direct change in the local registry (on the client). Now, with the new version 5.1 of the View Client there is a new way client side: As you can notice, there is a new option "Configure SSL..." that can open this window: In this window you can choose the right behavior. Note that on the smartphone and e tablet version of the client, on each connection you can choose the behaviour (in case on not valid certificate). But remember that the right approach ...

Read More

Installing Dell OMSA 7 on ESXi 5.5

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. Also if there is an update version (actually OMSA 7.3) the procedure is exactly the same described ...

Read More

Supported means that works well?

In the previous post I've consider the cases and scenarios of a "non supported" configurations. But what's happen with "supported" configurations? Are they always working and always in the best way? A supported configuration means that it can work well, but in specific situations, cases, scenarios. Usually a good rule could be make a good analysis and a good virtual design before choose the single pieces. A supported configuration does not mean that also meets requirements like availability, scalability and performance. For example there are a lot of entry storage that are VMware certified, but they does not meet any of ...

Read More

vCenter Operations Management - Installation without a DRS cluster

The vCenter Operations Manager 5.0 is a powerful tool for monitor a vSphere environment. But, as writtent in the previous post, the software is distribuited using a vApp (with two VMs) that means the you need DRS if you deploy it on a VMware Cluster. Note that if you deploy it on a standalone ESXi host it does not require DRS. So how deploy this vApp with a vSphere edition lower than the Enterprise edition? Officially there isnt's a strict requirement of a specific edition, so you can play to use it also on Essential, Essential+ or Standard edition of vSphere. In this case, the ...

Read More

Storage for VDI: local or shared?

In my interview with Sakthi Chandra (NexentaVSA for View Director), during the last Open Storage Summit EMEA, we have talk about the Nexenta approach of the storage for a VDI environment. Their product has been developed from a collaboration with VMware and some aspects sound familiar: for example the overview of the VSA deployment and design seems similar to the VMware VSA, except the scalability limit (that is limited to max 3 host for the VMware solution). But I don't want talk about the product, yet (I prefer dedicate it a post, when I will be able to make some ...

Read More

How change the download directory in VMware Update Manager

In most cases (in small environment) a default installation of vCenter Server and its components could work. Considering that the default disk of Windows Server 2008 R2 and 2012 is 40 GB (at least in a VMware virtual environment) it can store all the installation without any directory changes. Except for the Upload Manager (VUM) that need a reasonable space for store the patches (usually not more than 20GB, but in some case also more, and the installer suggest at least a 120 GB disk). If you forget to change the patches directory during the installation (by default it's C: in a ...

Read More

Running Windows 8.1 or Windows Server 2012 R2 in a VM

The new releases of Windows OS products (both Windows 8.1 and Windows Server 2012 R2) are actually in a RTM state for OEM and will be public available on October (probably the 17th or the 18th). Actually, in the last days, Microsoft has announced that the RTM is also available on MSDN and Technet. Or you can simple ask to download the evaluation product (but in this case it's just a beta version). If you want to run them on a VM it's really easy because it's just the same of running a Windows 8 or a Windows Server 2012 VM. And ...

Read More

Whitepaper on backup policies

Some months ago I've realize a course for the Backup Academy titled: Basic principles of backup policies. Now it's available also a whitepaper title "Backup policies defined for VMware VMs" (but it's enough general to be applied for generic policies, both for physical and virtual environment). This is the list of all the media type available on my course: Online video with transcript Offline video Podcast PowerPoint Slide Whitepaper

Read More

PCoIP vs. RDP

In a VMware View environment usually PCoIP protocol is preferred to the RDP one due to several reasons. I don't want to spend too much time about the latency, throughput, reactivity, user experience different between those two protocols... in most cases PCoIP is better compared to RDP. But PCoIP protocol has some limits that your have to consider in your design and mainly are described in the View Architecture Planning guide. Client support PCoIP only client: mobile clients, such as iPad and Android, use only the PCoIP display protocol. RDP only client: actually the Technical Preview of the Windows 8 Style Client works only ...

Read More

ESXi Performance Graphs - VM Power

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): After this operation the performance graph will start to show the value of VM power consumption (I supposed based on memory and CPU usage): How those value can ...

Read More

Virtualization types

With the term virtualization usually we are talking about System Virtualization, where a physical system is "partitioned" to permit multiple environments (using virtual machines). But virtualization is more generic and include different types: System Virtualization or Platform Virtualization: the hypervisor layer permit multiple virtual machines (VM). There are mainly two sub-types: Server Virtualization: where VMs are usually server OSes with server roles. Desktop Virtualization: where VMs are desktop OSes. There are two different approaches: Server Hosted: where VMs are running on physical server machines (usually using hypervisor for server virtualization). Also called VDI (Virtual Desktop Infrastructure or Virtual Desktop Interface). Client Hosted: where VMs are running ...

Read More

How to verify other IT Certifications

In the previous post I've define some ways to verify a VMware certification, to avoid frauds and wrong usage of false credential. Note that VUE give also a way to authenticate a Score Report. For other certifications there are different ways and, in some cases, could also be simplest: Microsoft: for all this kind of certification there is a specific portal (Validate MCP Transcript) where you can put the MCP ID (each certified people has a unique ID and this does not depends on the certification type) and a password (defined by the certified guy) and get the entire transcript of all Microsoft certifications. ...

Read More

LoginVSI-Logo

Login VSI is a well know company in the VDI and End User Computing are, due to its Login VSI product: the flagship product (sold for the past 2 years) for sizing, scaling, capacity planning, change impact on performance. But also a standard for benchmark those kind of environments. I’ve already wrote about the new 4.1 release.

But is not the only product, there are also:

  • Login VUM (new product out in limited beta): for continuous proactive monitoring of end user experience in production environments.
  • Login Automation Machine (currently part of Login Consultants as Automation Machine, will be moved to Login VSI before the end of 2014): for automate and manage the end user experience.

continue reading…

Share
VMUG

November will be a great month for VMUG User Conferences in Europe with three great events:

continue reading…

Share
TFD-Logo

During the last Tech Field Day extra at VMworld Europe after the first day there was an interesting roundtable discussion between the delegates.

The topic was about hyper-convergence systems that was one of the hot themes during the VMworld, considering also the VMware announces. Of course EVO:RAIL was one of the main points, but not only and there were lot of interesting considerations.

continue reading…

Share
Veeam-Logo-2014

During the first European Tech Field Day Extra (at VMworld EU in Barcelona) one of the companies was Veeam with an interesting session. Veeam does not need any introduction because it’s well know both in the data protection world and in the virtualization ecosystem.

There were Doug Hazelman (VP or Product Strategy and Chief Evangelist at Veeam Software), Rick Vanover (Product Strategy Specialist and Community Manager at Veeam Software) and Luca Dell’Oca (EMEA Evangelist at Veeam).

Of course one of the session’s topic was about the Veeam Availability Suite, but the main theme was how Veeam solves common issues caused by backup.

continue reading…

Share
VMware Logo

Using VMware Workstation 10 on Windows 8.1 I’ve got a strange issue on mouse handling the mouse with strange behaview, like delayed click, area selection (when not required), click on the wrong points, … making the Workstation console completly unusable. Keyboard was working fine in the console and also the mouse in the host OS or in the guest OS when connected with RDP.

The issue was not related on the type of the guest OS (same issue on Windows 7, Windows 8 or Windows Server 2012 R2) and was not related to Workstation Patches (up to date) or VMware Tools in the guest (also up to date).

Issue appear when I was using an external video with a HDMI to VGA adapter and how Windows 8.1 handle DPI scaling.

continue reading…

Share
VMware Logo

In VMware strategy, Cloud Management is the control plane for the Software-Defined Data Center and the Hybrid Cloud and, of course, is one strategical aspect for both pillars.

The next step in the VMware cloud management evolution must addressing evolving needs of SDDC and Hybrid Cloud customers:

  • Deliver cloud services with the cost and agility their consumers expect from cloud
  • Enable converging of IT Silos (Storage, Network, App MW, Security, Ops)
  • Deliver unified management across Private, Public and Hybrid with flexible consumption models

continue reading…

Share
VMware Logo

There are already lots of information about VMware vSphere 6.0 (actually in beta) but one big change has not be publicized so much: starting in December with the next ESXi Update release, TPS (Transparent Page Sharing) among virtual machines will no longer be enabled by default and this will not only be applied to next release, but also on current releases.

This actually does not mean that will be not be available (at least not in the short period), but is another historical piece that will be not used by default, like the vSphere Client (first was announced as no longer available in next release, than something has changed) or like ESX Server or Converter Enterprise.

continue reading…

Share
VMworld-Logo

The VMworld EU 2014 has finished today Thu 16 October. As usually most of the activities close in the early afternoon (or also in the morning), making the last day the weakest one. At least certifications and some activities are still running for the rest of the day. And this year, there will be also the Tech Field Day Extra in the afternoon.

In the next post I will provide a report of all my meetings and the Tech Field Day sessions!

continue reading…

Share
VMware Logo

VMware vRealize Operations 6.2 is the new name of the vCloud Automation Center product that will be now part of the new vRealize suite. But will be not only a barely renaming of an existing product, instead it will be a completely new version with several interesting improvements and enhancements.

Of course, there will be a tight integration between vRealize Operations and Automation (like in health status displays and reclaims inactive VMs) but also lot of enhancements in usage (more ease of use) and supportability and an admin Friendly CLI (to simplify scripting of vRealize Automation commands).

continue reading…

Share
VMware Logo

VMware vRealize Operations 6.0 is the new name of the vCenter Operations 5.x family and will be part of the new vRealize suite. But will be not only a barely renaming of an existing product, instead it will be a completely new version with lot of important improvements.

The VMware vCenter Operations Manager Suite was a powerful collection of products for help in monitoring and management tasks in a virtual (and not only) environment. Actually it was also included in some vSphere 5.5 bundle and there is the foundation edition available for free with each vSphere.

continue reading…

Share
vBrownBag

My session at vBrownbag Tech Talks will be today:

  • 12:00 – 12:15VMware vCSA – Pro and Cons

This is the related materials:

continue reading…

Share
VMworld-Logo

On Tuesday, Oct. 14, 2014 at 9 a.m. CEST, the event will kick off with a keynote presentation featuring VMware CEO Pat Gelsinger. Gelsinger will discuss strategies for competing and winning in today’s dynamic business environment — as old, rigid structures melt away and increasingly liquid businesses use technology in new and innovative ways to gain competitive advantage.

The keynote presentation will include key announcements, discussions and demonstrations of VMware’s software-defined approach and the combined power of its solution portfolio.

continue reading…

Share
© 2014 © 2013 vInfrastructure Blog | Hosted by Assyrus