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Can you spare a few minutes for some feedback on VMware Documentation?

04.10.2017 by William Lam // 2 Comments

I am always looking for ways in which we can improve our products and documentation should be no different. In fact, documentation should be treated just as important as the product feature itself. I am very interested in your thoughts and comments and this will also help with a project I am doing internally at an upcoming R&D offsite.

With that, I had recently published a very short 8-question survey on Social media asking for feedback regarding VMware Documentation which you can access in the URL below:

https://goo.gl/forms/cLaUhTMRAeZGpLxz1

If you have any feedback, good or bad, please take a few minutes to fill it out. We can only improve or continue to do what we are doing if we get feedback from our customers.

Several of you mentioned you were interested in the results and to be transparent, I am sharing the current results that are non-free form text (that gets a bit tricky for obvious reasons). As of writing this article, there have been a total of 118 responses submitted and the preliminary results can be seen below. Does this match up to your experiences of using VMware documentation? If not, please consider providing your feedback. Also, feel free to forward this survey to others as well and thank you for your time and support.

1. Where do you normally go to find information about VMware products (e.g. how to, configuration, etc)? [multiple choice selection]


2. Are you normally able to find what you are looking for when using VMware documentation?


3. Please rate VMware documentation on the level of technical details provided [1 - Not Enough, 5 - Exactly Right]


7. Do you find it easy to provide feedback on VMware documentation?


8. If VMware documentation was collaborative, would you consider contributing content back (e.g. enhancements, typos, etc)?

Categories // Uncategorized Tags // documentation, feedback

Maximum number of vCenter Servers per Single Sign-On (SSO) Domain

03.29.2017 by William Lam // 9 Comments

This particular question and its variations have been raised quite a bit lately by our field and customers. For me, this was an opportunity to see if we can provide some additional clarification and help explain some of the nuances that may have been causing some of the confusion around the supported maximums for both vCenter Server and the Platform Services Controller (PSC).

In the vSphere 6.5 Configuration Maximum, there are three specific maximums that helps us answer our question on the maximum number of vCenter Servers per vCenter Single Sign-On (SSO) Domain. I will go through each of the maximums and provide some additional context that will help us derive the answer to our question.

The first is the "Linked vCenter Servers" which defines the maximum number of vCenter Servers that can be supported in an Enhanced Linked Mode (ELM) configuration. What is interesting about this particular maximum is that it actually answers the majority of our question. By definition, an ELM consists of a single SSO Domain. This then means that you can only have a maximum of 10 vCenter Servers per SSO Domain.

vCenter Server Maximum

Configuration Maximum
Linked vCenter Servers (w/External PSC) 10
Linked vCenter Servers (w/Embedded PSC) 15

Note: As of vSphere 6.7, you can have up to 15 Embedded VCSA's within an ELM.

The second is the "Maximum PSCs per vSphere Domain" which defines the maximum number of PSC's that can be part of a single SSO Domain, pretty straight forward. The third is the "Maximum PSCs per site behind a load balancer" which just adds an additional constraint when using a load balancer with your PSCs.

Platform Services Controller Maximum

Configuration Maximum
Maximum PSCs per vSphere Domain 10
Maximum PSCs per site behind a load balancer 4

[Read more...]

Categories // Uncategorized Tags // Enhanced Linked Mode, platform service controller, psc, sso, vCenter Server, VCHA, vSphere 6.0, vSphere 6.5

vSphere 6.5b prevents vSphere Web Client logins for users w/o VC permissions

03.14.2017 by William Lam // 8 Comments

A patch update was just released for vCenter Server 6.5, dubbed vSphere 6.5b. While glancing through the release notes, I caught one interesting "resolved issue" which I thought was worth sharing.

Users with no vCenter Server permissions can log in to the vSphere Web Client

Users without permissions can log in to the vSphere Web Client. Users can click the menu options, but no inventory is displayed.

Users with no permissions can no longer log in to the vSphere Web Client.

To enable the login, set the allow.user.without.permissions.login = true property in the webclient.properties file.

This particular behavior has been something that has confused a few customers and has been asked about since the introduction of vCenter Single Sign-On (SSO) service. The issue or rather the confusion is that prior to the SSO service, vCenter Server handled both authentication as well as authorization.

With SSO, authentication was no longer being handled by vCenter Server and this meant that even if you had no permissions in vCenter Server but you could authenticate to SSO (especially common when Active Directory is configured), you would still be allowed to login to the vSphere Web/H5 Client.


Although vCenter Server would does the right thing and does not display any inventory if you do not have any permissions, it was still not a desired behavior in addition to the confusion it caused. I was pleasantly surprised to see that we have changed this default behavior by disallowing logins to the vSphere Web/H5 Client if a user has no VC permissions. Below is the message you will receive if you try to login without VC permissions.


If you wish to revert to the original behavior, you can do so by simply adding the allow.user.without.permissions.login = true setting into the vSphere Web/H5 Client configuration file (webclient.properties) and restart the vSphere Web/H5 Client service. I think many of our customers will appreciate this fix as well as the new default behavior!

Categories // Uncategorized Tags // permission, vSphere 6.5, vsphere web client

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William is Distinguished Platform Engineering Architect in the VMware Cloud Foundation (VCF) Division at Broadcom. His primary focus is helping customers and partners build, run and operate a modern Private Cloud using the VMware Cloud Foundation (VCF) platform.

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