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Quick Tip - Crucial NVMe SSD not recognized by ESXi 6.7 & 7.0

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If you own or have recently purchased Crucial NVMe SSD such as CT1000P1SSD8 (1TB M.2 NVMe SSD) or CT500P1SSD8 (500GB M.2 NVMe SSD), please be aware that these devices may no be recognized by ESXi after upgrading to the latest release. Thanks to Pete Lindley, (OCTO for End-User Computing), who reached out last week regarding the observation as well as a workaround for the problem. This was also quite timely as I recently purchased a Crucial M.2 NVMe SSD and would have also ran into this problem.

It turns out these Crucial devices were working fine while running on ESXi 6.5 Update 2 but was no longer recognized in latest release of ESXi 6.7 Update 2. It is unclear whether support for these SSDs were removed intentionally or unintentionally, but in either case, these devices are not officially on VMware's Hardware Compatibility List (HCL).

UPDATE (07/29/20) - Over the past few months, I have had a number of folks share feedback that using the trick mentioned below for ESXi 7.0, they have had success of ESXi detecting their NVMe SSD. I wanted to share some of the model and/or vendors that folks have reported success with. I will keep this list updated, so feel free to leave a comment below.

UPDATE (06/13/20) - Thanks to reader Dave, it looks like this trick also works with ESXi 7.0 but the filename has changed. Simply copy nvme.v00 VIB from the ESXi 6.5 Update 2 and replace it on ESXi 7.0 system (either live under /bootbank or part of the installer) but rename the file to nvme_pci.v00 which is the new filename for NVMe driver.

UPDATE (05/23/19) - After speaking with a few folks who took a closer look, the issue is due to the fact that we added support for NVMe 1.3 spec in latest ESXi 6.7 Update 2 release, but because these are "consumer" devices, they did not conform to the latest specification and hence the driver is unable to claim the device. This is another good reminder when using components not on VMware HCL, this is always a risk from a home lab perspective. In general, I know Samsung and Intel NVMe SSD usually works quite well without issues but always good to do some research. I think Engineering is looking to see if there are other workarounds for the future, but for now, you can use the workaround below.

The easy workaround that Pete found was to simply replace the NVMe driver from ESXi 6.7 Update 2 (1.2.2.27-1vmw.670.2.48.13006603) with one found in ESXi 6.5 Update 2 (1.2.1.34-1vmw.650.2.50.8294253). To so do, simply copy nvme.v00 to /bootbank from either an existing ESXi 6.5 Update 2 system or directly from the ISO. Please note, any future updates or patches to the ESXi host will most likely override the updated driver.

vSphere 6.7 Update 2 add support back for Apple Mac Pro 6,1

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Last fall, support for vSphere 6.7 Update 1 on the Apple Mac Pro 6,1 was removed by VMware after finding out an updated version of the Apple Firmware prevented ESXi from booting up properly after upgrading. After some investigation and troubleshooting with several customers, VMware Engineering found a solution to workaround the problem and that fix is included in the latest vSphere 6.7 Update 2 release. As mentioned in the original blog post, this could also impact Apple Mac Mini's, which are not officially supported by VMware, but the fix should also apply to the Mac Mini.

In addition, the VMware HCL will also be updated shortly to reflect support for both vSphere 6.7 Update 2 along with the existing vSphere 6.7 support. For customers that have been waiting for features in vSphere 6.7 Update 1, you can finally upgrade to the latest release to get all the new features and benefits of vSphere.

Instant Clone Apple MacOS

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Whether you are a brand new startup working on the next hot mobile app or an established Enterprise or Consumer brand company, development and testing of Apple iOS and/or MacOS is simply a reality in todays world. The vast majority of these customers accomplish this by running Apple MacOS on vSphere, either within their own on-premises datacenter or leveraging MacStadium, the largest MacOS Cloud hosting provider, who also runs their Mac infrastructure using VMware vSphere.

The ability to quickly build/test and deploy your application (Continuous Integration and Continuous Delivery) can mean the difference of having an edge over you competitor or being able to keep up with the demands of your business. Many customers have benefited from using vSphere platform and with technologies like Linked Clones, which allows you to quickly spin up a new VM without having to perform a complete full clone, it means you can build and test your application even faster.

In vSphere 6.7, we introduced a major enhancement to Instant Clone, which you can read more about here and here. One of the questions I have been seeing lately is whether Instant Clone can be applied to MacOS guests? The answer is absolutely! In fact, Matt Moriarity, who works for TravisCI, recently shared some tidbits on how to get a MacOS Mojave guests to see the updated MAC Address to ensure that there are no network conflicts when performing an Instant Clone.

The majority of the "hard" work to use Instant Clone is really from within the GuestOS and the customization script that needs to be developed. In fact, Instant Clone is pretty OS agnostics and you can even Instant Clone Microsoft Windows 98 and 2000, if you really wanted to 😀

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