VMware Horizon Cloud Pod Architecture Questions From the Field

/ November 16, 2018/ VMware Horizon

While implementing a Horizon Cloud Pod Architecture, customers asked overall the same questions, how its work, what happens if…, In this blog i will cover some of the questions asked by customers in the field.

The first questions and most common, why do we need a Cloud Pod Architecture, we can also spread the connection brokers over two datacenters?

Spreading connection servers over two datacenters is not officially supported by VMware, In the field i see that it will work without any problems. Still you have one composer and one vCenter server.
With Horizon Cloud Pod Architecture, you can spread the risk because you use a different vCenter server, connection server and Composer.

Is it difficult to enable Cloud Pod Architecture?

In earlier releases of Horizon it was, Recently I deployed a Pod Architecture with Horizon 7.5 and i can say that is was quite easy. Understanding why you couldn’t add a local pool was harder than setup the Cloud Pod ūüėČ

by default, cloud pod is disabled

What happens if one site with two connection brokers are down, can users still connect to their desktop?

When a site with two connection brokers are down, Users cannot connect to their desktops, because a connection server is needed for assigning users to a desktop.
Because there are two sites, Horizon will check if a desktop is available at his own site.

For redundant purposes, I will always recommended Two or more connection brokers at each site. Use DRS rule to spread the connection brokers VM on different ESXi Servers.

Floating and dedicated  user assignment both supported?

Within Cloud Pod, both are supported. Note when you add a global entitlement, you must choose floating or dedicated user assignment.
after creating the entitlement can can only add pools with the same user assignment. you cannot change this afterwards.

User connect to a site without local pools, what happens?

When u user connect to a site without any local pools added, Because the user is assigned to a global entitlement, Horizon will check for available desktops at the other site. When there is a desktop available the request will be forwarded.

* Con10 is the connection broker and entry point of the user.
* Con01 is the connection broker of the other site.

Because Con10 has no local pools added to the global entitlement, the request is forwarded to Con01.

What are the limitations?
Horizon 7.5  has the following limitations

  • IPv6 is not supported
  • Kiosk mode clients are not supported, in the official VMware documentation VMware provide a link to a workaround KB2148888
  • Limit of 200.000 sessions
  • Maximum of 25 Pods
  • Maximum of 10.000 sessions per pod
  • Maximum of 10 sites
  • Maximum of 175 connection servers

Which Network ports are used

Ports Protocol Descr
22389 HTTP This port will be used for LDAP replication
22636 HTTPS This port will be used for secure LDAP replication
8472 HTTPS This port will be used for View interpod API communications ( VIPA ), this communication channel is used to launch new desktops and applications. Also the VIPA shared health status data.

The VIPA communication channel will be configured when the admin initialize the Cloud Pod Architecture feature.

Different Version of Horizon supported in a pod?

Since the release of Horizon 7.4 it is supported to use different version of horizon within the same pod. Note that new features of Horizon 7.4 or 7.5 are not visible ( do not work ) in the horizon administrator of Horizon 6.x

Can i Remove a Pod from the Pod Federation?

Yes you can, In the Horizon Console, you must select in the inventory “Cloud Pod Architecture” after that, click on “Unjoin” to leave the pod federation.

Can i just Uninitialize the Cloud Pod Architecture feature when there are pods connected.

Before uninitialize the pod architecture, you must first unjoin the connected pods. The option will be greyed-out in the horizon administrator console.

Can i use adsi edit to view global LDAP information

For accessing global ldap information with Adsi, you must use the following  adress for the connection point

  • dc=vdiglobal,dc=vmware,dc=int
  • localhost:22389

Cloud Pod use his own Ldap instance to store shared data.

What happens if the user is entitlement to the local pool and global entitlement

Because the user is assigned to the local and global pool, when logged in, there will be two desktop icons. Because this is confusing, my advise use only the global entitlements instead of local.

#Destination of above tiles are the same, when the user choose for “Desktop”, the cloud pod function is not working

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