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Embedded Host Client Fling v3 released!

10.23.2015 by William Lam // 8 Comments

I just wanted to give everyone a quick heads up that version 3 of the awesome Embedded Host Client Fling has just been released! In addition to all the new features and bug fixes which you can find more details below, there is now also an offline bundle for ESXi 5.x as well as ESXi 6.x which can then be used to distribute to your vSphere environment using vSphere Update Manager. One of my favorite features in this new release is the ability to edit or delete existing disk partitions which is super handy when repurposing existing disk devices for use with VSAN. You can find the download on the Embedded Host Client Fling page here.

If you have v1 or v2 installed, you can perform an "update" by simply running the following ESXCLI command:

[root@mini:~] esxcli software vib update -v /esxui-signed.vib
Installation Result
Message: Operation finished successfully.
Reboot Required: false
VIBs Installed: VMware_bootbank_esx-ui_0.0.2-0.1.3172496
VIBs Removed: VMware_bootbank_esx-ui_0.0.2-0.1.3015331
VIBs Skipped:

What's new in v3 -

VM
- Answer question support
- Upgrade virtual hardware to the latest supported by the host
- Hot edit VM settings
- VM table column configuration (show/hide columns), remembered across browser refresh
- VM startup/shutdown priority (simple increase/decrease)
Host
- Change host power management policy, advanced power configuration
- Generate IP/FQDN certificate signing request and import new certificate
- Join a host to an active directory domain controller
Storage
- Disk device partition editor
- Adapter rescan for new LUNs
- Disk device rescan for new VMFS volumes
- Clear a disk's partition table
- Disk device partition diagram
- Increase datastore size onto disk that already contains a partition table
Performance charts
- Ability to change performance chart colors (two choices: default VMware colors and high contrast colors)
- Added Network and Disk charts to Host performance UI
- Improve VM performance UI, still missing some charts
- Improved performance UI on tablets
  - Always hide the top legend in the chart
  - Hide the focus widget to increase vertical space
General
- In-app update tool: provide a URL to a new version of the VIB, refresh the browser, et voila!
- For tabbed UIs, the selected tab is remembered as you navigate around the UI to avoid un-necessary clicks
- Better scrolling performance on tablets (tested on iPad)
- Hide-able navigator allowing more space on tablets
- Shortcut buttons to Host, Host Manage, Host Monitor, VMs, Storage, Networking when navigator is collapsed
- Improved Actions menu behavior on tablets:
  - Menu navigation no longer hides the actions menu
  - Added an explicit close button on actions menus
  - A second press on the Actions button will close the menu
Bugfixes
- VM table sizing with small number of VMs
- In-browser consoles:
  - Will now attempt to reconnect when losing a connection to a powered on VM
  - Reverting to a powered-on snapshot while a console is open to that VM will reconnect the console

Automating full configuration of a VSAN Stretched Cluster using RVC

10.23.2015 by William Lam // Leave a Comment

A couple of weeks back I had spent some time setting up several VSAN Stretched Clusters in my lab for some testing and although it was extremely easy to setup using the vSphere Web Client, I still prefer to stand up the environment completely automated 🙂

In looking to automate the VSAN Stretched Cluster configuration, I was interested in something that would pretty much work out of the box and not require any additional download or setup. The obvious answer would be to use the Ruby vSphere Console (RVC) is a really awesome tool that is available as part of vCenter Server included in both Windows vCenter Server and the VCSA.

For those of you who have not used RVC before, I highly recommend you give it a try and you can take a look at this article to see some of the cool features and benefits. I am making use of the RVC script option which I have written about in the past here to perform the VSAN Stretched Configuration. One of the new RVC namespaces that have been introduced in vSphere 6.0 Update 1 is the vsan.stretchedcluster.* commands and the one we are specifically interested in is the vsan.stretchedcluster.config_witness command.

There are a couple of things the script expects from an environment setup, so I will just spend a few minutes covering the pre-reqs and the assumptions before diving into the script. I will assume you already have a vCenter Server deployed and configured with an empty inventory. I also assume you have already deployed at least two ESXi hosts and a VSAN Witness VM that meets all the VSAN pre-reqs like at least one VSAN enabled VMkernel interface and associated disk requirements. Below is a screenshot of the vSphere Web Client of the initial environment.

Next, we will need to download the RVC script deploy_stretch_cluster.rb and upload that to your vCenter Server. Before you can execute the script, you will need to edit the script and adjust the variable names based on your environment. Once you have saved the changes, you can then run the RVC script by running the following command:

rvc -s deploy_stretch_cluster.rb [VC-USERNAME]@localhost

Here is a screenshot of running the script on the VCSA using Nested ESXi VMs + VSAN Witness VM for the Stretched Clustering configuration:

If everything executed successfully, you should see a "Task result: success" which signifies that the VSAN Witness VM was successfully added to the VSAN Stretched Cluster. If we now refresh the vSphere Web Client and under the Fault Domains configurations in the VSAN Cluster, we now see both our 2-Node VSAN Cluster and the VSAN Witness VM.

Hopefully this script can also benefit others who are interested in quickly standing up a VSAN Stretched Cluster, especially for evaluation or testing purposes. Enjoy getting your VSAN on!

Heads Up - Workaround for changing Mac OS X VM display resolution in vSphere & Fusion

10.22.2015 by William Lam // 51 Comments

For customers who are running Mac OS X 10.9 (Mavericks) or newer in a Virtual Machine, you may have noticed that you can no longer set a custom display resolution beyond the default 1024x768 in either VMware Fusion and vSphere, regardless of the amount of video memory that has been allocated. The reason for this behavior is that Apple has changed the way in which it remembers previously used modes and would automatically fall back to this versus retaining the custom mode using the Display Preferences. Given this is a non-trivial fix, VMware Engineering has been working hard on a providing a workaround which would still allow users to set a custom resolution from within the GuestOS.

The workaround that has been developed is a tiny standalone command-line utility called vmware-resolutionSet which runs within the Mac OS X Guest and allows you to configure a custom display resolution. You will need to ensure you have VMware Tools installed and running before you can use this utility. As of right now, customers can get a hold of this utility by filing an SR with VMware Support and referencing PR 1385761. Although this tool has not been officially released and must go through the standard release process, the plan is to include it in a future update of VMware Tools and will available for use with both VMware Fusion and vSphere.

UPDATE (12/11/15) - Thanks to reader @elvisizer, it looks like the latest VMware Fusion 8.1 release now includes an updated version of VMware Tools (10.0.5) which includes the vmware-resolutionSet utility. You can find it under '/Library/Application Support/VMware Tools'. One thing to note is that there is a known issue right now for VMware Fusion 8.1 related to NAT and port forwarding, you may want to hold off on upgrading if you rely on this feature.

The syntax for the vmware-resolutionSet utility is pretty straight forward, it accepts a width and height argument. Make sure to use "sudo" if you want the display resolution to persist through a system reboot. For example, to set a 1920x1080 resolution, you would run the following command:

./vmware-resolutionSet 1920 1080

Note: Ensure you have sufficient video memory configured for your VM for larger display resolutions. In the example above, I have 16MB configured for my Mac OS X VM which would give you a max resolution of 2560x1600.

If everything was successful, you should see that both the "Requested resolution" and the "Effective resolution" match in the output. If output does not match, it most likely means you need to increase the video memory and you can refer to this VMware KB 1003 for more details. If we take a look at our Mac OS X VM, we should now see that our new custom display has taken effect. Below is a screenshot of a Mac OS X 10.11 (El Capitan) running on vSphere 6.0 Update 1 configured with a 1920x1080 resolution.

One other thing to note is if you plan on using higher display resolution than 2560x1600, you may need to configure some additional VM Advanced Settings due to use of framebuffers that are larger than 16MB. In this case, you would need to also add the following two advanced settings to the VM which can be done using the vSphere Web/C# Client or the vSphere API. For example, if I want a 2880x1800 display resolution, I would add the following:

svga.maxWidth = "2880"
svga.maxHeight = "1800"

Lastly, I would like to give a big thanks to Michael Udaltsov, the Engineer who is responsible for creating the workaround and providing me with some additional context to this change in behavior. I know our customers will greatly appreciate this workaround!