View Connection Server (1 of 7)


The View connection server(s) acts as a broker for client connections. View Connection Servers authenticate users through Windows Active Directory and then assigns a user to the appropriate desktop.  The main functions of a View Connection Server are as follows

  • Authenticating users
  • Entitling users to specific desktops and pools
  • Assigning applications packaged with VMware ThinApp to specific desktops and pools
  • Managing local and remote desktop sessions
  • Establishing secure connections between users and desktops
  • Enabling single sign-on
  • Setting and applying policies


The configuration data is stored in a LDAP directory and is replicated amongst other connection servers.

Overview of Horizon View


I thought I would publish a series of articles which would provide an overview of Horizon View. This will consist of an overview of the following;

  1. Connection Servers
  2. The View Connection Process
  3. View Security Servers
  4. View Composer
  5. View Agent
  6. View Client
  7. vCentre’s Involvement in Horizon View

Keep your eyes open for the first article in the next day or so.

Social Media and Community at VMworld 2015

Time to check out all of the #VMworld 2015 social media channels to see what they offer

Social Media and Community at VMworld 2015

“Are You Ready” for an incredible VMworld 2015? Be sure you are connected with VMworld social media and community, for on-site and online offerings. Social media can often provide that ‘virtual handshake’ to start conversations with the global VMworld community. Take advantage of the following resources to expand those discussions or enhance face-to-face networking opportunities — before, during or after the conference.

VMware Advocacy

Achieving High-Performance 3D Graphics with…

Achieving High-Performance 3D Graphics with Horizon 6

Achieving High-Performance 3D Graphics with…

By Matt Coppinger, Director, End-User-Computing Technical Marketing and Enablement, VMware and Gary Sloane, Consulting Writer and Editor, VMware Are you considering virtualizing your 3D desktop workloads? Are you wondering if your 3D applications will perform on a virtual desktop? The new VMware Horizon 6 3D Engineering Workloads Reference Architecture looks at some of the more […] The post Achieving High-Performance 3D Graphics with Horizon 6 appeared first on VMware End-User Computing Blog .

VMware Advocacy

The Wrath of the Syslog Debug File

So I came across this one today the vCenter server had previously been upgraded from 5.1 to 5.5 and the Syslog Collector had also been installed on that server.  We noticed that the C Drive had started to fill up over a period of time and traced that back to the following file.

C:ProgramDataVMwareVMware Syslog Collectorlogsdebug.log    which was now 15GB in size!

Screenshot 2015-08-27 11.27.33

It turns out thanks to KB 2094175 that this is a known issue with no known resolution apart from to carry out the following tasks.

  1. log on to the vCenter server
  2. Stop the VMware Syslog Collector service. For more information, see Stopping, starting, or restarting VMware vCenter Server services (1003895)Screenshot 2015-08-27 11.27.51
  3. On the server running the VMware Syslog Collector service, navigate to C:ProgramDataVMwareVMware Syslog Collector and save a copy of vmconfig-syslog.xml.
  4. In a text editor, open vmconfig-syslog.xml and modify  from:

    <debug> <level>1</level> </debug>


    <debug> <level>0</level> </debug>

  5. Start the VMware Syslog Collector service. For more information, see Stopping, starting, or restarting VMware vCenter Server services (1003895).

Latency What Latency – Nimble Storage

Having just completed a storage/ VMware migration from 4 x Dell Equallogics to a single Nimble CS300 (48TB 2.4TB Cache 1GB iSCSI) I just wanted to share with you my experience.

.FullSizeRender 25

The firm runs a number of highly transactional Microsoft SQL servers which accepts data from the likes of Compare the Market and GoCompare. They have approximately 75 vm’s and also a small VDI environment running on the Nimble. Unsurprisingly the Nimble handles all this without breaking in to a sweat, but that’s to be expected right ?

So why do we get so much performance from a 3U box with 12 SATA disks and 4 SSD’s; quite simply CASL

CASL is a CPU-driven storage architecture, so write performance is no longer dependent on spindle speed or spindle count. What’s more, CASL dramatically increases the usable capacity of disk and flash through compression and its unique sequential data layout.

This document provides a great overview on CASL for those that want to know more.

So after the environment had bedded in I took a look at the Nimble interface to see what the steady state IOP and latency figures were for this environment, bearing in mind we have several highly transactional SQL servers, 75 vm’s and a small virtual desktop environment all running on this box, lets take a look below.

IOP figures for an average working day

Screenshot 2015-08-26 21.53.49(2)

  • Random Read: 881 IOPS
  • Sequential Read: 1931 IOPS
  • Random Write: 580 IOPS
  • Sequential Write: 180 IOPS

Latency figures for an average working day ( 1GB iSCSI Network)

Screenshot 2015-08-26 21.53.49

  • Read Latency 0.42msec
  • Write Latency 0.19msec

Pretty impressive figures considering the blended workload, this is about the 11th Nimble I have installed and I am always impressed with the performance of these arrays.


Horizon View: Pool Provisioning Fails

I came across this little beauty the other day and wanted to share the resolution with you, in my case it was the web service on the vCenter server had stopped.


Provisioning of a desktop pool fails, and you see one of the following error messages in the event database.

  • Cannot log in to vCenter at address VC_Address
  • The status of vCenter at address VC_Address is unknown


  • The View Connection Server instance cannot connect to vCenter for one of the following reasons.
  • The Web service on the vCenter Server has stopped.
  • There are networking problems between the View Connection Server host and the vCenter Server.
  • The port numbers and login details for vCenter or View Composer have changed.


  • Verify that the Web service is running on the vCenter.
  • Verify that there are no network problems between the View Connection Server host and the vCenter.
  • In View Administrator, verify the port numbers and login details that are configured for vCenter and View Composer.