ESXi – Page 94

Custom script bundle is now possible with Auto Deploy in vSphere 6.5

11.23.2016 by William Lam // 10 Comments

It has been some time since I had looked at the Auto Deploy and Host Profile feature in vSphere. As a former customer, I still remember one of the challenges I had in evaluating Auto Deploy and specifically Host Profiles was the fact that it did not cover all the possible ESXi configurations. This made it very difficult to operationalize as you still needed to handle post-configurations through other mechanisms. Trying to keep both solutions did not make sense for me and I ended up opting for the traditional scripted installation method via Kickstart which I had hooks into automate the full ESXi configuration.

In vSphere 6.5, there was a huge effort to significantly improve both Auto Deploy and Host Profile to what customers had expected of this feature, especially around bringing parity between the configurations that could be done using the vSphere Clients and/or vSphere APIs into Host Profiles. In addition, there was also several UI enhancements that now makes it possible to use both Auto Deploy and Image Builder directly from the vSphere Web Client which was never possible before. For more details, be sure to check out the What's New vSphere 6.5 white paper here.

One new feature that I think is worth calling out is the new Script Bundle capability in Auto Deploy. Previously, if a particular configuration was not available via Host Profiles, there was nothing you could really do and you had to write your own custom post-deployment script to apply to the ESXi host. As I mentioned earlier, in vSphere 6.5, we have closed the gap on the ESXi configurations that were not possible using Host Profile and will ensure that will be in sync going forward. Having said that, there are still certain configurations that are not possible today such as creating a custom ESXi firewall rule for example. For these cases, you either had to either hack it up using a method like this or to create a custom ESXi VIB which would then force customers to lower their ESXi's software acceptance level which was not ideal nor acceptable, especially for customers that are security conscious.

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ESXi 6.5 Virtual Appliance is now available

11.18.2016 by William Lam // 32 Comments

The much anticipated release of vSphere 6.5 has officially GA'ed and you can find all the release notes and downloads over here. Just like prior releases, I have created a new Nested ESXi Virtual Appliance to aide in quickly setting up a vSphere 6.5 environment for both educational as well as lab purposes. If you have not used this Virtual Appliance before, I strongly recommend you thoroughly review this blog post here for the background before proceeding further.

Disclaimer: Nested ESXi and Nested Virtualization is not officially supported by VMware, please use this at your own risk (the usual).

The new ESXi 6.5 Virtual Appliance includes the following configuration:

ESXi 6.5 OS [New]
GuestType: ESXi 6.5[New]
vHW 11 [New]
2 vCPU
6GB vMEM
2 x VMXNET vNIC
1 x PVSCSI Adapter [New]
1 x 2GB HDD (ESXi Installation)
1 x 4GB SSD (for use w/VSAN, empty by default)
1 x 8GB SSD (for use w/VSAN, empty by default)
VHV added (more info here)
dvFilter Mac Learn VMX params added (more info here)
disk.enableUUID VMX param added
VSAN traffic tagged on vmk0
Disabled VSAN device monitoring for home labs (more info here)
VMFS6 will be used if user selects to create VMFS volume [New]
Enabled sparse swap (more info here) [New]

To be able to import and use this new ESXi VA, you will need to be running at least vSphere 6.0 Update 2 in your environment as I take advantage of some of the new Nested ESXi enhancements in vSphere 6.5. If you need to run ESXi 6.5 on earlier versions of vSphere, then you can take my existing 5.5 or 6.0 VAs and manually upgrade to 6.5.

Now that you made it this far, here is download: Nested_ESXi6.5d_Appliance_Template_v1.ova

Lastly, I have also spent some time building some new automation scripts which takes advantage of my Nested ESXi VAs and deploys a fully functional vSphere lab environment without even breaking a sweat. Below is a little sneak peak at what you can expect 😀 Watch the blog for more details!

USB 3.0 Ethernet Adapter (NIC) driver for ESXi 6.5

11.17.2016 by William Lam // 189 Comments

I had several folks ask me about an updated USB 3.0 Ethernet Driver for ESXi 6.5, similar to what I had created for ESXi 5.5 and 6.0. There were some changes that came with ESXi 6.5 and thanks to Songtao, I was able to build a new driver. For those of you who are not familiar with this particular driver, I highly recommend you give this article here a read before proceeding any further. If you are interested in Realtek driver for ESXi 6.5, be sure to check out Jose's blog here for more info.

UPDATE (02/12/19) - A new VMware Native Driver for USB-based NICs has just been released for ESXi 6.5/6.7, please use this driver going forward. If you are still on ESXi 5.5/6.0, you can continue using the existing driver but please note there will be no additional development in the existing vmklinux-based driver.

UPDATE (04/23/18) - For folks who plan to upgrade or install ESXi 6.7, you can continue using the 6.5 driver. I've had several folks reach out and share there have not been any issues and upgrades will preserver the USB NIC driver or you can perform a fresh install and follow the steps below.

To use this new driver for ESXi 6.5, there are some additional steps that is required. Below are the instructions on how to install this on an ESXi 6.5 host.

Step 0 - Download the ESXi 6.5 USB Ethernet Adapter Driver VIB or ESXi 6.5 USB Ethernet Adapter Driver Offline Bundle and upload it to your ESXi host.

Step 1 - If you are upgrading from an existing ESXi 5.5 or 6.0 environment, the first thing you will want to do is uninstall the old driver by running the following command (specify the correct name of the driver):

esxcli software vib remove -n vghetto-ax88179-esxi60u2

Step 2 - Install the VIB by running the following ESXCLI command to install:

esxcli software vib install -v /vghetto-ax88179-esxi65.vib -f

Step 3 - Next, you will need to disable the USB native driver to be able to use this driver. To do so, run the following command:

esxcli system module set -m=vmkusb -e=FALSE

Step 4 - Lastly, for the changes to go into effect, you will need to reboot your ESXi host. Once your system has rebooted, it should now automatically load the USB Ethernet driver and you should see your USB Ethernet Adapter as shown in the screenshot below.

Step 5 - ESXi does not natively support USB NIC and upon a reboot, the USB NICs are not picked up until much later in the boot process which prevents them from being associated with VSS/VDS and their respective portgroups. To ensure things are connected properly after a reboot, you will need to add something like the following in /etc/rc.local.d/local.sh which re-links the USB NIC along with the individual portgroups as shown in the example below.

esxcfg-vswitch -L vusb0 vSwitch0
esxcfg-vswitch -M vusb0 -p "Management Network" vSwitch0
esxcfg-vswitch -M vusb0 -p "VM Network" vSwitch0

You will also need to run /sbin/auto-backup.sh to ensure the configuration changes are saved and then you can issue a reboot to verify that everything is working as expected.