Tag Archives: 6.0

vMA 6: Recover vi-admin Password and Remove Password Complexity

When you’ve installed the vSphere Management Assistant 6.0 (vMA) you very like came across its very strict password policy. With this requirements, the password recovery for vMAs is a common tasks. This post explains how to recover forgotten vMA passwords and how to use insecure, simple passwords for lab uses.vma-bad-password

Please provide a password for the vi-admin user.
BAD PASSWORD: to short
BAD PASSWORD: it is based on a dictionary word
BAD PASSWORD: is too simple
…Have exhausted maximum number of retries for service

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How to Increase VCSA External PSC Disk Space in vSphere 6

The vCenter Server Appliance 6.0 uses the Linux Logical Volume Management (LVM) that allows you to dynamically increase the disk size of the vCenter Server disks. For the vCenter server itself the process to increase the capacity is well documented in KB2126276. When you have an external Platform Services Controller, the tool mentioned in the KB is missing. You can’t use “vpxd_servicecfg storage lvm autogrow” to increase the space automatically so you have to do it manually.

This post explains how to increase the disk space for an external platform service controller.

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ESXi 5.5 & 6.0 August 2016 Patch

VMware has published patches for ESXi 5.5 and 6.0:

VMware ESXi 5.5
Release date: August 4, 2016
Patch: ESXi550-201608001
Build: 4179633
Links: KB2144371 | Download

VMware ESXi 6.0
Release date: August 4, 2016
Patch: ESXi600-201608001
Build: 4192238
Links: KB2145667 | Download

Both patches are only available in the patch section, not as installable. A patch for vCenter Server 5.5 has also been released:


ESXi 6.0 May 2016 Patch (Build 3825889)

VMware has published a patch for ESXi 6.0

Product: VMware ESXi 6.0
Release date: May 12, 2016
Patch: ESXi600-201605001
Build: 3825889
Links: KB2136186 | Download

The update resolves 7 issues including two PSOD and a CBT problem with the following symptoms: Read more »

Ping from specific VMkernel adapter in vSphere 6

When troubleshooting network problems on ESXi hosts you want to specify the outgoing VMkernel adapter. As explained here you can ping from a specific VMkernel adapter with the -I parameter. In vSphere 6.0, or with VXLAN activated, this might not work as expected and displays the following error.

[root@esx:~] ping -I vmk1
Unknown interface ‘vmk1’: Invalid argument

The problem is related to the multiple TCP/IP Stack features introduced in vSphere 6.0. To ping from specific VMkernel adapters that are not in the default Stack (defaultTcpipStack) you have to manually specify the NetStack with the -S parameter.

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VMware NSX 6.2 Beginners Guide – From Zero to Full Deployment for Labs

NSXVMware NSX is the SDDC technology of the future. What ESX was once for Servers, NSX is now for Networks. I highly encourage everyone to make yourselves familiar with this technology. NSX with all its features is quite complex, but the entry point is quite simple and requires only basic vSphere and networking skills. This beginners guide explains how to deploy NSX in your homelab even with limited physical ressources by downsizing NSX Manager and NSX Controller VMs. The guide starts at zero and quickly explains how to deploy NSX and connect your first Virtual Machine to a VXLAN based logical switch that is able to communicate to the physical world through an NSX Edge Gateway.

What do you need to create the Lab?

  • vCenter 6 with some physical ESXi Hosts
  • vSphere Distributed Switch (dvSwitch)
  • NSX Manager Appliance (Download: NSX 6.2.2)
  • There is no special physical Switch requirement

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Script to add vSphere 6 VMCA Root Certificate to Trusted Certs Store

When running vSphere 6 deployments in default (recommended) mode, VMware Certificate Authority is its own root certificate authority. Everything fine and secure with this configuration, but your browser displays a warning because the root certificate is not trusted.

I’ve written a little script (VBS) that pulls the CA certificate from a vCenter Server and adds it to the local trusted root certificates store. When the root CA is trusted, browser warnings are gone.

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Resilient vSphere 6.0 PSC deployment without Load Balancer

With vSphere 6.0 VMware has separated their vCenter Server into two components – vCenter Server and Platform Services Controller. They also created a list of topologies they recommend  for deployments. The deployment they recommend for high availability includes an External Load Balancer where vCenter Servers are pointed to. An alternate solution is to have multiple Platform Services Controllers and vCenters pointed directly to them. There is no need to have one PSC for each vCenter. Each PSC can manage up to 4 vCenters, so with 2 PSC you can manage 8 vCenters, with 3 you can manage 10 vCenters, which is the configuration maximum at the moment.


Platform Services Controller with or without Loadbalancer?

The solution with a Load Balancer sounds nice, and I’m sure it’s operable, but it has some drawbacks:

  • It requires a third-party Load Balancer (Compatible Load Balancers are NSX-v, Citrix NetScaler and F5 Network Big-IP)
  • Configuration is complex
  • Troubleshooting is even complexer
  • Does not scale (1 PSC can handle 4 vCenters, with a Load Balancer (which is used for redundancy) 2 PSC are required to handle 4 vCenters)

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Getting Started with the Free Log Insight for vCenter

li-logoVMware gives away a 25-OSI pack of vRealize Log Insight 3.3 for all users with a supported vCenter Server license. VMware vRealize Log Insight is a log management software with intuitive dashboards, sophisticated analytics and broad third-party extensibility. It provides deep operational visibility and faster troubleshooting.

Log Insight is not a new product. I’ve already written about it during the beta phase and the final product was introduced back in 2013. With the release of vSphere 6.0 Update 2, VMware has included a 25-OSI package to all vCenter installations allowing all customers to use the product in small environments for free.

In this post I am goging to explain how to obtain the 25-OSI pack and deploy Log Insight for vCenter.

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Can the Host Client replace the Fat Client? Full ESXi configuration Walkthrough

vmware-host-client-splashThe new HTML5 based VMware Host Client for managing ESXi host is finally available with the latest release vSphere 6.0 Update 2. I’m not sure if the most memorable name is “ESXi Embedded Host Client”, “EHC”, “esx-ui” or “VMware Host Client”. However, the new client is a great alternative to the C# VMware vSphere Client aka. “Fat Client”, or any other existing ESXi configuration solutions.

In this post I am going through the full configuration of an ESXi Host to see if the VMware Host Client can replace the C# Client for configuring and managing Standalone ESXi Hosts.

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