WEM Upgrade Process

With the latest release of WEM 4.5, I figured I would take the chance to document a how to guide on upgrading the WEM Components in the safest fashion

It is critical that you disable Mirroring of the Database prior to any WEM upgrades

Step 1. Backup your Environment

A simple SQL backup job is fine for the WEM DB

SQL_Backup
SQL Backup

And I like to snapshot my broker server/s

Snapshot
Server Snapshot

Step 2. Document your WEM Infrastructure Service Configuration. This is wiped after an upgrade (Note this is the last time you will need to do this via the GUI, moving forward you can use PowerShell)

Launch the Infrastructure Service Configuration:
“C:\Program Files (x86)\Norskale\Norskale Infrastructure Services\Norskale Broker Service Configuration Utility.exe”

Take note of the following Settings in particular
Database, Network Settings (if you customised ports), Advanced Settings, Licencing. DB Maintenance most people leave as defaults

ISC_DB
Database Settings Node
ISC_Network
Network Settings Node
ISC_Advanced
Advanced Settings Node

Step 3. Once you have completed your preparation steps, you can run through the simple upgrade.

Start with the Console:
\Workspace-Environment-Management-v-4-05-00\Citrix Workspace Environment Management Console Setup.exe

Wizard_Console

Follow the defaults, there is nothing of concern here

Next we move to the infrastructure services

\Workspace-Environment-Management-v-4-05-00\Citrix Workspace Environment Management Infrastructure Services Setup.exe

Wizard_ISServices

Leave as the defaults, this just updates the actual services and we will configure shortly

Once complete, launch the DB Management Utility (This can be done via PowerShell moving forward from this release)

Wizard_ISServicesDB

Select to Upgrade the Database

DBUtil_Upgrade
DB Upgrade Wizard

Make sure here to specify the Correct DB as noted in your first steps – if you have multiple (Unlikely however I do) make sure you run through this for all DB’s

DBUtil_Upgrade2.png
DB Upgrade Wizard Values

Once DB has been upgraded we can move on

DBUtil_Upgrade3

Now launch the Infrastructure Services Configuration Utility again:
“C:\Program Files (x86)\Norskale\Norskale Infrastructure Services\Norskale Broker Service Configuration Utility.exe”

Repopulate with all values that you took note off in the initial tests and allow the services to restart

Wizard_ISServicesConfig
Infrastructure Service Configuration

Repeat for each node in your environment

Launch the console and confirm access and versions

Version
Upgraded Version

As mentioned, you can now view your service configuration via PowerShell using the Get-WemInfrastructureServiceConfiguration Commandlet

Powershell
Powershell SDK for WEM 4.5 in action

Now it’s time to update your Target Agents. Note that there is no urgency here, the older agents will report into upgraded WEM with no issues

Follow whatever unsealing process for whatever provisioning technology you use

Run the updated installer program – this can be run as an in place upgrade:
\Workspace-Environment-Management-v-4-05-00\Citrix Workspace Environment Management Agent Setup.exe

Accept defaults, there is no magic here

Wizard_Agent

Your WEM Services will stop and restart during the process. Once installed, you can confirm your version

AgentVersion
Agent Version Confirmation

Once installed it is always important to run the ngen drain tasks. I personally use BIS-F for any sealing work, but the manual process is outlined below.

C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe update
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe update
C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe eqi 1
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe eqi 1
C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe eqi 3
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe eqi 3

ngen
nGen Tasks Completed

Once completed you can reseal your image, when the WEM agent reports in, you should now see the new version

Broker_AgentVersion
Broker reporting Agent Version

And you are good to go

4 thoughts on “WEM Upgrade Process

Add yours

  1. I have a big environment and was hesitant in upgrading WEM. All the Citrix servers are PVS booted, agents upgrade will take time. You mentioned that older agents work fine with 4.5 infrastructure servers. Is this supported configuration?

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