Yesterday we upgraded one of our vSphere Clusters to 4.1 – it went smoothly 🙂 But today the users reported that they weren’t able to use cut % paste between the guest and their computer using the vSphere Client (Console). After a quick google we found that VMware has tightened the vSphere security by disabling… Read More »
Friday I was at a customer to upgrade their ESXi 4.0 (free) to version 4.1. This should have been an easy task, download CD, burn it and install. This wasn’t the case, the new ESXi 4.1 wouldn’t install, it kept freezing during the extract of the cim.vgz file. The problem occurred on both the Dell… Read More »
VMware has released their hardening guide for vSphere 4.0. There is more than 100 guidelines to choose from, divided between Introduction Virtual Machines Host (both ESXi and ESX) vNetwork vCenter Console OS (for ESX only) http://blogs.vmware.com/security/2010/04/vsphere-40-hardening-guide-released.html
Time keeping in a virtual environment can be a challenge to setup. To help you, VMware has maintained a KB on the subject. http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1318 The KB presents best practices for achieving accurate timekeeping in Windows Guest operating systems. These recommendations include a suggested configuration for timesynchronization in the guest and on the host. A more… Read More »
Today I needed to create a list of all users connected to a vCenter sever through the Client. And during so I created a few variants 🙂 This creates a list of all usernames connected to the vCenter server through a vCenter Client. $svcRef = new-object VMware.Vim.ManagedObjectReference $svcRef.Type = “ServiceInstance” $svcRef.Value = “ServiceInstance” $serviceInstance =… Read More »
vLogView, helps you view and search all LOG files from each of your ESX hosts from a single application. For more info and the latest download, visit http://xtravirt.com/xd10132
If you need a good guide to Interpreting the statistic from ESXTOP then take a look at this guide from VMware. http://communities.vmware.com/docs/DOC-9279 I’m using it to troubleshoot performance issues (poor response times) from clients in different locations, when using the remote console.
Restarting the Management agents on ESX Server 3.x Login to the ESX host using SSH (or from COS) Type service mgmt-vmware restart. CAUTION Before restarting the Management Agent make sure that Automatic Startup/Shutdown is Disabled For more info see Restarting hostd (mgmt-vmware) on ESX Server Hosts Restarts Hosted Virtual Machines Where Virtual Machine Startup/Shutdown is Enabled… Read More »
Just found this very interesting article http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1013109 describing a problem with Windows 2008 and ESX 4 virtual hardware version 7. In short the article states that you might have the disks go offline in a Windows 2008 VM if you Upgrade virtual hardware from version 4 to 7 Installing a new VM with virtual hardware… Read More »
If you are looking for a easy and simple guide for setting up iSCSI on vSphere (ESX 4.x) you might want to take a look at this guide from www.techhead.co.uk http://www.techhead.co.uk/vmware-esxi-4-0-vsphere-connecting-to-an-iscsi-storage-target