28 Jan 2014
By Yendis

vNUMA disabled if CPU HotAdd enabled

VMware, ,
If virtual NUMA is configured with vCpu hotplug settings, the virtual machine will be started without virtual NUMA and instead it will use Uniform Memory Access with interleaved memory access. The virtual machine log displays the message: vmware.log> vmx| W110: NUMA and VCPU hot add are incompatible. Forcing UMA There is no current solution. If you do not plan to use vCpu hotplug, do not enable it.  Add the maximum vCpu's that might be needed by the workload. Source:VMware KB
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20 Jan 2014
By Yendis

XenDesktop Error: The hosting infrastructure could not be reached at the specified address

Citrix, VMware, , ,
When trying to create a XenDesktop group that is using ESX 4/5 as the hosting infrastructure, or you've had to reinstall VMware vCentre you may receive the following error message: "The hosting infrastructure could not be reached at the specified address." or there is no virtual desktop activity i.e. power on/off as virtual desktops are being used when viewed in vCentre recent activity The reason for this is because VMWare, vSphere, and the ESX host are configured to redirect http traffic to https by default.  Because the default certificate on ESX does not match the name of the server, it…
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15 Dec 2013
By Yendis

London VMUG Meeting – 24th Jan 2013

VMware
The London VMUG Steering Committee is delighted to invite you to our first VMUG meeting of 2013. This is a great opportunity to come together with your fellow VMware users to discuss virtualization trends, best practices, and the latest technology! Be sure to visit our new London VMUG Workspace! Connect with your fellow VMUG members in te forum, ask and answer questions about VMware, and get involved in your VMUG community. Meeting Highlights  Nutanix Presentation - Alan Campbell and Rob Tribe, Nutanix Your Journey to the Post-PC Era - Brian Gammage, VMware EUC Panel with VDI Gurus - Brian Gammage, VMware…
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09 Dec 2013
By Yendis

VMware ESXi Snapshot Placement

VMware,
Recently I came across an issue after recently upgrading an environment from ESXi 4.1 to ESXi 5.1 update 1 when I started to get issues with snapshots filling up LUNS.  After analysing what was going on I noticed that when a snapshot was initialized, the snapshot file placement was different and was causing space issues. On ESX 4.x environment the delta disks were stored in the directory specified by the workingDir parameter. This was typically the same directory as the configuration files for the virtual machine On ESXi 5.x environment to facilitate the improvements to Storage vMotion and the new Storage DRS feature, a change to the snapshot process…
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14 Nov 2013
By Yendis

UK VMUG – 21/11/2013

VMware
For those people who couldn't attend VMworld this year, I would strongly recommend attending the next big event of the year, and that is the UK VMUG.  This is free to attend and is being held on Thursday 21st November 2013 at National Motorcycle Museum Coventry Road Bickenhill Solihull West Midlands B92 0EJ This is going to be a great event , keynote speaker is Joe Baguley, VMware CTO EMEA having seen Joe's recent keynote at VMworld 2013 in Barcelona I was impressed and I'm sure he'll deliver another powerful keynote at this event. Also presenting are other great leaders in the industry and blogs I personally follow:- Scott Lowe @Scott_Lowe (VCDX #39) Jason Langone @langonej …
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31 Aug 2013
By Yendis

VMware vSphere 5.5 what’s new

VMware,
Now that VMworld 2013 is now over and a number of key product updates announced I thought it was worth highlighting some of enhancements and improvements that stretch across the entire stack with vSphere 5.5. As you can see from the summary below this release is a major step forward to VMware's strategic move toward the fully software defined data center. Flash Read Cache This completely new feature in vSphere 5.5 provides a mechanism for utilizing fast SSD as a Linux host swap cache or to provide improved read speed for a host virtual disk. To make use of this feature, you first have…
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26 Aug 2013
By Yendis

Register – VMware NOW – Live Launch Event

VMware
VMware NOW – Live Launch Event Date: August 26, 2013 Time: 9:00 AM PDT (5:00 PM GMT) On August 26, visit VMware NOW—your online destination for breaking news, live events, product announcements, and more. You will discover how VMware is empowering organizations like yours to innovate and thrive by virtualizing IT infrastructure, from the data center to the cloud to mobile devices. Register now to view this online event
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26 Aug 2013
By Yendis

Adding the ESX/ESXi host to an Active Directory domain fails with the error “Errors in Active Directory operations”

VMware, ,
When adding a 4.1 ESX/ESXi host to an Active Directory domain it fails or whilst adding you receive an error "Errors in Active Directory operations". If you have netlogond enabled on the host, you can check to see if you have similar entries in the netlogond.log: 20100820075107:0xf7c74b90:DEBUG:[LWNetSrvGetCurrentDomain () /build/mts/release/bora-234910/likewise/esxi- esxi/src/linux/netlogon/server/api/lwnet-pstore.c:83] Error  at /build/mts/release/bora-234910/likewise/esxi- esxi/src/linux/netlogon/server/api/lwnet-pstore.c:83 [code: 136] The issue is more than likely down to TCP/UDP ports not open between the ESX/ESXi host and Active Directory server. Make sure you have the following TCP and UDP ports open:- Required (TCP and UDP) ports are Port 88  - Kerberos authentication Port 123 – NTP Port 135 - RPC Port 137 - NetBIOS Name Service Port…
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