vSphere Web Client

Want to issue a VAAI UNMAP operation using the vSphere Web Client?

09.18.2014 by William Lam // 3 Comments

Recently, I have seen several requests from both customers and partners wanting to be able to run the VAAI UNMAP operation from within the vSphere Web Client. For those of you not familiar with the VAAI UNMAP operation, I recommend you check out this blog post by my colleague Cormac Hogan. Today, the only way to issue the UNMAP operation is by using ESXCLI either remotely or in the ESXi Shell. There is currently not a vSphere API for this operation and therefore it would be difficult to build a native vSphere Web Client Plugin to provide this functionality.

Having said that, one way to provide this capability is through the use of a vCenter Orchestrator (vCO) Workflow which can remotely execute an ESXCLI command whether that is going through ESXCLI using a Linux jump box or through PowerCLI using a Windows jump box. Starting with vSphere 5.5, you can now extend the vSphere Web Client and attach a vCO Workflow to a vSphere Object and be able to execute the workflow right from the vSphere Web Client. This is great if you are already using vCO, but for those that are not, it can be somewhat complex to setup along with a steep learning curve depending on your experience.

Today, there was an exciting announcement from my Automation buddy, Alan Renouf for a new VMware Fling called PowerActions for the vSphere Web Client. This new Fling allows you to easily extend the vSphere Web Client in the following ways:

Access a PowerCLI console directly in the vSphere Web Client
Ability to run a context aware PowerCLI script directly from the vSphere Web Client

The prerequisite for setting up PowerActions is no different than vCO calling a PowerCLI script, you just need a Windows "jump-box" that has PowerCLI installed along with PowerActions. The added benefit, is that you do need to setup another piece of infrastructure like vCO if you are not already using it. This made setting up PowerActions extremely easy to setup and even I was able get it up and running in under 5minutes (minus a quick RTFM moment :)).

Given the number of inquiries regarding VAAI UNMAP operation via the vSphere Web Client, I thought that would be a great use case for my first PowerActions script! Below are the instructions on creating the VAAI UNMAP script for PowerActions:

Step 1 - Click on the PowerCLI Scripts option on the left hand side of the Object Navigator and then click on the "New Script" Icon. Select Datastore as the context aware object for the script.

Step 2 - Provide a name and description for the script. Also make sure to select "Action".

Step 3 - Copy and paste the following script from https://github.com/lamw/vghetto-scripts/blob/master/powershell/unmap-poweraction.ps1 inside the script window and then save the script. What the script does is takes the Datastore object and retrieves a list of ESXi hosts that has access to the Datastore and then randomly selects one of the host. This is required because ESXCLI operations on a per host level and we use that information to pass into Get-EsxCli cmdlet to issue the VAAI UNMAP operation.

Step 4 - To test the script, you just need to right click on a VMFS Datastore and click on PowerCLI->Execute a Script

Note: Please be aware of the impact when running a UNMAP operation, you may want to run this on a non-production datastore for testing purposes or during off hours when your workload may not be as busy.

Step 5 - Select the VAAI UNMAP script you just created and once selected and you will be prompted to specify the number of VMFS blocks to unmap per iteration which is exactly the same input when manually ESXCLI.

At this point, if everything was successful the VAAI UNMAP operation should begin and you can tail /var/log/hostd.log to see the UNAMP operation. Once completed, you should see the prompt return true.

As you can see, it was extremely easy to create my own PowerAction script that expose new functionality and making it available within the vSphere Web Client. I think this is going to be a pretty popular Fling and remember if this is something you would like to see officially in the product, be sure to leave a comment on the PowerAction for vSphere Web Client Fling page, product managers are listening! The only feedback I have is that I would love to see this get extended beyond just PowerCLI and into a generic script extension framework, just imagine the possibilities!

Edit Virtual Hardware 10 VMs using vSphere 5.5 Update 2 C# Client

09.09.2014 by William Lam // 13 Comments

vSphere 5.5 Update 2 has just released and among the various bug fixes, one that stands out the most to me and I am sure everyone will be quite happy about (including myself) is the ability to now edit a Virtual Hardware 10 Virtual Machine using the legacy vSphere C# Client. Previously, if you tried to edit a Virtual Machine running the latest Virtual Hardware (version 10), you would get a warning message prompting you to use the vSphere Web Client and the operation would be blocked.

The feedback has been loud and clear from customers/partners and I am glad to see that VMware has re-instated this functionality in the latest vSphere 5.5 Update 2 C# Client. You will still be prompted with a dialog noting that only Virtual Hardware Version 8 features will be editable using the vSphere C# Client and that all newer Virtual Hardware features, you should still leverage the vSphere Web Client and/or vSphere API. This will at least allow you to edit basic functionality of a VM when vCenter Server is unavailable or if you are not running vCenter Server but wish to use the new Virtual Hardware version.

Here is the direct download link for the vSphere 5.5 Update 2 C# Client: http://vsphereclient.vmware.com/vsphereclient/1/9/9/3/0/7/2/VMware-viclient-all-5.5.0-1993072.exe

Note: You do not need to install vSphere 5.5 Update 2 to be able to use this new functionality, you just need to upgrade your vSphere C# Client to the vSphere 5.5 Update 2 release and you will be able to connect to previous versions of vSphere 5.5 (vCenter Server & ESXi).

Extending VSAN capabilities in the vSphere Web Client using vCO

05.29.2014 by William Lam // Leave a Comment

One of my favorite features of vCenter Orchestrator is how easy it is to extend an existing vCO workflow and making it available directly in the vSphere Web Client. I think this is still not a very well known feature of vCO, but once you realize the capability of this feature, you will see how powerful it is to be able to provide context aware workflows in the vSphere Web Client. Another thing to be aware of is that vCO also provides full access to the underlying vSphere API, this means you can easily expose new functionality that may not exists in the vSphere Web Client.

A good example of this is a recent workflow that I created to extend some additional VSAN information directly in the vSphere Web Client. I wanted to be able to easily view the number of VSAN components for each of my ESXi hosts. Since this information is available through the vSphere API which I wrote about here, I was able to create a vCO Workflow which exposed this information and then make it available in the vSphere Web Client.

To get started, you will need to download the workflow and an updated vCenter vCO Plugin as it contains a fix for leveraging the VSAN APIs:

In the example below, I am using the vCO Appliance but the steps are very similar if you are using the Windows version.

Step 1 - Upload the o11nplugin-vsphere.dar.zip to your vCO Appliance

Step 2 - Unzip the contents by running the following command:

unzip o11nplugin-vsphere.dar.zip

Step 3 - Run the following command to set the appropriate ownership and permissions:

chmod 644 o11nplugin-vsphere.dar
chown vco:vco o11nplugin-vsphere.dar

Step 4 - Backup the original vCenter vCO Plugin by running the following command:

mv /usr/lib/vco/app-server/plugins/o11nplugin-vsphere.dar /usr/lib/vco/app-server/plugins/o11nplugin-vsphere.dar.bak

Step 5 - Copy the new plugin to the plugins directory by running the following command:

mv o11nplugin-vsphere.dar /usr/lib/vco/app-server/plugins

Step 6 - Restart the vCO Service to load the new plugin

/etc/init.d/vco-server restart

Once the vCO Server is available, you can login to the vCO Client and import the new VSAN workflow. To make the workflow available in the vSphere Web Client, you will need to login to the vSphere Web Client using an account that has access to the vCO Server and the instructions below.

Step 1 - Click on the vCO icon on the home page and then select Manage and Context Actions

Step 2 - Click on the green arrow to add a new worfklow

Step 3 - Browse for the VSAN workflow and then click on the Add button and associate the workflow with a vSphere Cluster object as seen in the screenshot below:

Once the context workflow has been added, you are now ready to run the new VSAN workflow! Right click on a VSAN enabled vSphere Cluster and under the All vCenter Orchestrator Actions, you should see our workflow:

Go ahead and run the workflow and once it completes, you can view the results by clicking on the workflow name in the Recent Tasks:

Under the Parameters section, we can see our input and output variables. In this workflow, I have created a String output called "count" which contains the name of each ESXi host in the VSAN Cluster along with the number of corresponding components.

As you can see, you can easily enhance the functionality of the vSphere Web Client by simply extending it with either out of the box or custom vCO Workflows that you have created. Happy workflowing!