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Quick Tip - Retrieving vSAN Congestion Health Programmatically

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While catching up on post-Explore email, I received a question from a customer who has a large number of vSAN deployments spanning their ROBO environment. In one of their environment, they had some physical congestion issue that caused some problems for their vSAN stretched cluster and they were looking for a way to monitor the vSAN congestion health, which is available as part of vSAN Health.


Since this information is available as part of vSAN Health, we can certainly leverage the vSAN Health API to retrieve this information programmatically but we can also look at using the PowerCLI Test-VsanClusterHealth cmdlet to get this information in a quicker manner for administrators.

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Managing vSAN internet connectivity configuration using the vSAN API

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I recently received an inquiry from a vSAN customer who was looking to disable the vSAN internet connectivity, which is used pull down the latest vSAN HCL catalog updates and is also used as part of enabling the vSAN File Services.


Rather than using the vSphere UI to disable this configuration, the customer was interested in automating this and was wondering if there was an API that can be used?

While I have explored a large part of the vSAN Management API, this is one area that I had not played with before, which also meant a good learning opportunity!

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Improved vSAN capacity usage reporting APIs in vSphere 8.0 Update 3

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As with any new VMware software release, I always love geeking out and taking a look at the new APIs have been added and/or updated that can benefit our users. Having spent some time automating various aspects of vSAN, I came across a couple of new vSAN capacity usage reporting APIs (vSphere API & vSAN Management API) that were introduced in vSphere 8.0 Update 3 that I thought was worth mentioning.

While vSAN already had an existing capacity API by using the querySpaceUsage() method as part of the VsanSpaceReportSystem, it did not provide granular information about the raw storage capacity that was claimed by vSAN, whether that was for vSAN Original Storage Architecture (OSA) or vSAN Express Storage Architecture (ESA).

As part of the VsanVcClusterConfigSystem, there is now a new vSAN API called getClaimedCapacity() that will return the raw capacity in bytes for all claimed disks for vSAN OSA and/or ESA which is also useful for those looking to understand their tebibyte (TiB) usage, as that is also  unit of licensing for vSAN storage with the new VMware vSphere Foundation (VVF) and VMware Cloud Foundation (VCF) offers.

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