Category: VMWare

“Already Used” status in VMware Horizon View

When linked-clone desktops are not cleanly logged off and the “Refresh on logoff” policy is used, VMware Horizon View marks the desktop as “Already used” and blocks other users from accessing the machine. This “Already Used” state is a default VMware security feature which prevents other users from accessing the previous user’s data and allows a VMware Horizon View administrator to investigate potential problems with the desktop. The VMware Horizon View desktop can also go into the “Already…

ESX /tmp filling up due to ql_ima.log

Problem: VMware reports: A general system error occurred: cannot read the host cache configuration because some other process is modifying it at this time Operation failed, diagnostics report: Cannot read the host cache configuration because some other process is modifying it at this time. ls -alh /tmp shows the tmp folder as being full with ql_ima.log  +100MB Solution: Issue lies with the QLogic driver. Place host into maintenance mode: Delete the…

Increase disk space in a windows VMWare vSphere

Adding more disk space to a Windows virtual machine in VMWare is very easy. All you have to do is the following: Power down your virtual machine In your VMWare manager (vSphere, etc.) edit the VM’s settings Increase the provisioned size of the disk and click OK Power on the virtual machine Verify in Disk management that the VM sees the new unformatted disk space Open a command prompt (In…

VMWare Cookbook

Here’s another new book just out about VMware VMware ESX and ESXi. According to Amazon.com, you’ll not only learn the basics — how to pool resources from hardware servers, computer clusters, networks, and storage, and then distribute them among virtual machines — but also the stumbling blocks you’ll encounter when you monitor systems, troubleshoot problems, and deal with security. In addition to the recipes, VMware Cookbook includes background information to…

The top 25 ESX commands and ESXi commands

The top Linux commands The ESX service console is based on Red Hat Linux and therefore many Linux commands can be used inside it. Here are common Linux commands and some VMware-specific versions of them. Find/cat/grep commands find, display and search for files. Find locates specific files, cat displays the contents of files and joins files together, and grep searches for specific text within in a file. These commands help…

vSphere client not connect vCenter Server error

You receive the vSphere client could not connect with the vCenter Server error message when you attempt to connect to the Virtual Center using a remote VMware vSphere Client I received this error message after a system restart to complete the installation of the some Windows updates. Fortunately it was nothing major – just 2 services that had failed to start. Just ensure that the VMware VirtualCenter Management Webservices and…

Half Of VMware Customers Virtualise

Half of VMware’s customer base is virtualising Microsoft Exchange and 65 per cent virtualise SQL Server, but the majority of VMware customers are not virtualising SAP and Oracle applications, according to survey data released by VMware. VMware, which makes the most widely used x86 server virtualisation software, revealed the data to illustrate that virtualisation is robust and secure enough for customers to place critical applications inside virtual machines. However, the…