Windows machines loses default gateway
I had a customer call me, that after they updated there ESXi hosts with patches from VMware and afterwards upgraded VMware tools on a Windows 2008 R2 server, the machine lost it's default gateway Trying to configuring it again, just resulted in the default gateway field being blank after enabling it. There where more then one…
Windows machines shows 169.254.x.x address after boot/reboot
I have had a number of Customer experiencing that when there Virtual Windows Machines reboots or are booted, they may come up with an APIPA address (169.254.x.x) this is due to a problem with Cisco switches. But here is a solution that is described in a VMware KB: KB1028373
Sizing of vSAN
I been asked about how to size VMware vSAN solutions, both from Hardware Business Managers and Customers, this have been a manual calculation, with some help from different blogs. Now VMware has released a online tool that you can help: https://vsansizer.vmware.com/ The result of the tool may be that you only need 3 hosts, which is the minimum, but…
HP 3PAR StoreServ and VMware vSphere 5 Best Practice
HP has changed there best practice for using there 3PAR StoreServ Storage systems when using Round Robin multi-pathing policy. The old recommandation was to use IOPS=100, and this has changed to IOPS=1. so for setting this you should use the following. 3PAR runninng Persona 6: 3PAR running Persona 11: See also dokuments from HP: White Pape: HP 3PAR StoreServ Storage…
Bye bye SUSE Linux Enterprise Server for VMware
SLES for VMware has gone EoA on July 25, 2014, so there is currently no Linux distribution, that's bundled with your vSphere License. according to information from VMware they are not switching to a new Linux partner. If you want to know what this means, the information can be found on this site: http://www.vmware.com/products/sles-for-vmware Does this mean that…
VMware vSphere vCenter 5.5 Update 1c
VMware has just released a new Build of VMware vCenter 5.5 Update 1c, This release fixes some issues with compability between VMware vCloud Automation Center 6.0.x and VMware vCenter Single Sign-On, There are also other problems that's fixed, so it's an important fix. For a full list of fixes read the release notes: Release notes
vCenter Operations Manager error: “number of resources exceeds supported limit”
I have had this issue at a customer, where vCops after running for some time, came with this administrative alert.: "number of resources exceeds supported limit" After some searching on the internet i found 2 articles that had something about this: https://www.comdivision.com/kb/vcenter-operations-manager-error-number-of-resources-exceeds-supported-limit.html http://www.virtualiseme.net.au/index.php/vcops-max-number-of-supported-resources/ They both pointed to a advanced setting that should be set, but nothing about…
VMware vSphere and HP StoreVirtual VSA
When using VMware ESXi/vSphere combined with HP StoreVirtual it always been a bit of a problem starting the datacenter, or the Branch Office installation where this solution is used. If you had to do a complete shutdown of this solution, the the startup procedure was to turn on all the ESXi hosts, make sure that all…
vSphere C# Client and search performance
I have seen thru some time that the old vSphere C# Client's search function has become slow, after a little research i found that the VMware VirtualCenter Management Webservices is not getting enough resources. I have checked different installation at different customers and I found that it don't get the recommend memory. VMware has a Knowlegde Base…
Intel E5-2600 V2 CPUs and Virtualization
There is a bug in the Intel E5-2600 V2 CPUs when running a virtualized environemt ontop of servers runnings this type of CPUs, that can resolve in Blue Screen of Death (BSOD) og Kernel Panic in Linux Virtual Machines, this not apply to VMware vSphere but also to Hyper-V and other hypervisor. There may also be other Intel E5-xx00 V2…