vCenter Virtual Appliance Network Settings Reverting

In one of my lab environments my vCenter Server Appliance (VCVA VCSA*) kept reverting its DNS server settings after I changed them in the VCSA web interface (https://:5480).  After changing the Preferred DNS Server and Alternate DNS Server settings to use my Active Directory Domain Controller IPs and then rebooting the appliance, the DNS settings were removed and the Preferred DNS Server setting was reverted to the setting present before I updated it. Losing my DNS Server settings caused me all sorts of issues - my vCenter Server couldn't find ESXi hosts by name, AD authentication failed, … [Read more...]

PCoIP Packet Loss? Don’t Blame the Network!

Several months ago I was called into a new customer to diagnose some odd behavior in their VMware View environment. The organization was struggling with constant disconnects and generally poor performance on their View desktops. When users weren’t being randomly disconnected from their desktops, the users experienced lag when dragging windows between multiple monitors, ‘choppy’ graphics/video, and slow application launching. The problems occurred with local and remote users (both WAN and LAN could be involved).  The customer had done some troubleshooting, worked with VMware Support and the … [Read more...]

Troubleshooting Slow Logon to VMware View Desktops

I did a bit of troubleshooting today for a customer who was experiencing very slow logon times to VMware View desktops running Windows XP.  I suspect the problem is a fairly common one so I thought I might share my troubleshooting methodology and the solution that got the login time back to normal.  Following a rigid methodology may be overkill for many troubleshooting situations.  If you strongly suspect a root cause to a problem, check the solution before digging in to analytic troubleshooting.  A little bit of Googling may eventually get you to an answer for a particular problem, but having … [Read more...]

Storage Basics – Part IX: Alternate IOPS Formula

It's been a long time since I published an article in my Storage Basics series - the series has been some of the top content on my site to date.  I sat for a beta version of the VMware Certified Advanced Professional - Desktop Design (VCAP-DTD) test today and was reminded by the test of a post I had in waiting about an alternate way to calculate IOPS (hint hint - memorize these formulas).  I have several more articles sitting in draft form, but a new job, crazy kids, home improvement projects, and a wife with chronic cerebral spinal fluid (CSF) leaks (it sounds bad - and it is - but look on … [Read more...]

Optimize Microsoft Office and Outlook in VDI Environments

I've been working on a VMware View Optimization and Best Practices whitepaper for Clearpath.  The document isn't quite ready for publication yet, but I wanted to share a section that I've been working on as I've had several people ask me about this topic recently.  This section is dealing with deploying Microsoft Office, and Microsoft Outlook in particular in VMware View VDI environments.  Stay tuned for the full document.  In the meantime, I hope this bit is helpful to you. Microsoft Office in View Desktops Microsoft Office, including Outlook, can be deployed as a ThinApp to View … [Read more...]

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Microsoft KB2661254 and VMware

Microsoft today is pushing an update to Windows via Windows Updates that increases the bit length requirements for RSA certificates.  With this update, Microsoft is requiring RSA certificates to have a key length of 1024 bits.  Some applications do not yet use a 1024 or greater key length and could be impacted by this updated.  Some examples: Internal Microsoft Certificate Authority servers that were built with a less than 1024 key will not start after the update – this will make certification validation for internally generated certs fail (could impact Outlook Web Access, vCenter … [Read more...]

What You Didn’t Know You Needed To Know Before Implementing VMware View

I had the privilege of presenting at the Potomac Regional VMware User Group (VMUG) conference yesterday and at the inaugural Boston VMUG last week.  The Potomac Regional event was a combination of Washington DC, Northern Virginia, Maryland, and Federal VMUG’s.  Clearpath participated in both the Potomac and Boston events as a gold sponsor.  My session was entitled, “What You Didn’t Know You Needed To Know Before Implementing VMware View”. My session provided attendees with an overview of how VMware View integrates with existing infrastructures, Windows images, applications, and processes.  … [Read more...]

Failed to connect to VMware Lookup Service on VMware vCenter Virtual Appliance

I've been rebuilding my home VMware lab environment recently.  I decided to jump right into vSphere 5.1 with the vCenter Server Virtual Appliance instead of the traditional Windows SQL combo.  Deploying a vApp is much faster and cheaper from a licensing perspective than a full-blown Windows and SQL setup.  After I imported the vCenter Virtual Appliance .OVA,  I logged into the administrative web interface of the appliance (https://vcenterIP:5480) and started to make a few configuration changes.  First up were assigning a hostname, setting the correct time zone, and setting a static IP … [Read more...]