Previous Status: Green
New Status: Red
([Event alarm expression: vSphere HA agent on a host has an error; Status = Red] OR [Event alarm expression: vSphere HA detected a network isolated host; Status = Red] OR [Event alarm expression: vSphere HA detected a network-partitioned host; Status = Red] OR [Event alarm expression: vSphere HA detected a host failure; Status = Red] OR [Event alarm expression: Host has no port groups enabled for vSphere HA; Status = Red] OR [Event alarm expression: vSphere HA agent is healthy; Status = Green])
vSphere HA detected that host (host) is in a different network partition than the master (Cluster) in Datacenter
I had been getting this message randomly over the last couple months on some of my datacenter hosts. These alerts didn’t seem to be causing any problems within the cluster, but I wanted to get to the bottom of this. I opened a ticket with VMware and uploaded the logs from both the host and vCenter, but they didn’t see anything out of the ordinary. On the second webex with VMware I noticed a couple strange things with the management network that might be the cause.
- The first thing I noticed was that the NICs were set for “Auto Negotiate”. I originally set up our environment on ESXi 4 before upgrading to ESXi 5.1. When I initially set this up I hard coded (KB1004089) these to 1000GB/Full. I am wondering if at some point during the upgraded that they defaulted back. On our switches it was set at 1000GB/Full so it is important that we set this on the host NICs to 1000GB/Full as well.
- The second thing that I noticed that in the Management network that I had the Load Balancing set to “Route based on IP hash”. The problem here is that for this to work correctly you need a port channel configured (I do not have this configured this way). This might be the cause of the HA problem if the traffic is going across these NICs is getting confused because of the Load Balancing configuration. I changed this to “Route based on the originating virtual port ID”, which makes the traffic go out on the port that it came in on. There is a good read found here…http://blogs.vmware.com/kb/2013/03/troubleshooting-network-teaming-problems-with-ip-hash.html.
This case is still ongoing with VMware and I should know in the next couple weeks if this solves my problem; my gut tells me it will.
Now that our VM is created, we will install VMware Tools, upgrade the Hardware Version, and make some helpful Windows changes. If you are going to use the BGinfo program, please make sure you go and download that.
Finishing VMware Changes and Configuring the OS
- First thing we need to do is upgrade the VMware Tools on the machine. This will install critical drivers for both Network and Video and will make for a better all-around experience. Select your VM and then click “Guest” and then “Install/Upgrade VMware Tools”.
- Click “OK” on the window that comes up.
- Go back to your console screen for the VM and you should see the D: drive change to “VMware Tools”. Double click this to start the install.
- Click “Next” on the tools welcome screen.
- I used to do a custom install and removed the shared folders, but from all my reading I don’t think this is needed anymore. Choose the “Typical” radio button and then click “Next”.
- To continue with the install click “Install”.
- Click “Finish”.
- Click “No” when it asks for you to reboot.
- Instead we are going to Shut the VM down so that we can update the hardware. Select your VM in VMware then choose “VM” from the menu bar then “Power” and then “Shut Down Guest”.
- Once the VM is shut down, right click on it in vCenter Server and then choose “Upgrade Virtual Hardware”. The hardware version for the server will change to 9.
- Right click on the VM again and this time click on “Edit Settings”.
- Click the CD/DVD drive 1 and change the Device Type to “Client Device”.
- Click on the Floppy drive 1 and then click “Remove”.
- Click the “Options” tab and then click “Boot Options” check the box for “Force BIOS Setup”. Click “OK”.
- Power on the VM again using the “Power On” button.
- Arrow down to “Legacy Diskette A:” and hit the + key until is says “disabled”.
- Arrow to the right so that “Advanced” is highlighted. Then arrow down 4 times until “I/O Device Configuration” is highlighted and then press “Enter”. Go down the list changing “Serial port A:, Serial port B:, Parallel port:, and Floppy disk controller to “Disabled”.
- Press “ESC” twice and then press “Enter” to Exit Saving Changes. Press “Enter” again when it asks for confirmation.
- Logon using your administrator password that you created in part 1.
- I like to get the time right on the server before I do anything else. Do this by right clicking the time in the lower right corner and choose “Adjust date/time”. Click the “Change time zone” button. Make the appropriate change for your location and then click “OK”, and then “OK” again.
- The first thing I like to do is to rename the server and add it to the domain if needed (I try to not add it to the domain if I don’t have to). The Server Manager should open automatically for you. Click “Local Server” on the left side and then click the “Computer Name” Change the name, but you won’t be able to add it to the domain yet because it has not been IPed.
- Right click on the Network icon in the task bar and choose “Open Network and Sharing Center”.
- Click “Change adapter settings”.
- Click “Properties”.
- The default lists the following items.
- Click “QoS Packet Scheduler” and then click “Uninstall”. Do the same for both “Link-Layer Topology” items. QoS Packet Scheduler is not needed unless you are doing QoS at the Windows layer instead of the L2/L3 switch layer. Please read about Link Layer Topology here and determine if you want/need it in your environment – http://en.wikipedia.org/wiki/Link_Layer_Topology_Discovery
- Finally, uncheck “Internet Protocol Version 6 (TCP/IPv6). WARNING – DO NOT uninstall IPv6 as this might cause problems.
- The first thing we are going to do with Server Manager is to change its behavior on startup. Open up Server Manager if it is not already done. Click “Manage” and then click “Server Manager Properties”.
- Check the “Do not start Server Manager automatically at logon”.
- In Server Manager click on the “Internet Explorer Enhanced Security Configuration” and set both Administrators and Users to “Off”.
- Now we are going to add some important items to the desktop. From the main Server Manager Dashboard page click “Add roles and features”. Click “Next” on the Before you begin page, leave the radio button on “Role-based or feature based installation” and click “Next.
- On the Server Selection screen leave everything default and then click “Next”. Click “Next” again to bypass the Server Roles and move to “Features”.
- Expand both .NET Framework 3.5 and 4.5 and then check to have both installed.
- Next click the check box for “User Interface and Infrastructure”. This is going to allow us to add some missing desktop icons. Click “Add Features” when the required features window comes up.
- We use SNMP for server monitoring so I check the box for “SNMP Service” and then click “Add Features” when the required features window comes up, then click “Install”.
Right click on your desktop background and click “Personalize”. Click the “Change desktop icons” link and then check the boxes for “Computer, Recycle Bin, and Control Panel”.
- Right click on the Desktop again, and under “View”, set icon size to “Small”, and set Auto Arrange and Sort By options according to your preference.
- Right click the task bar and click “Properties”.
- Check the box “Use small taskbar buttons”.
- Click on the “Navigation” tab and then check the box “When I sign in or close all apps on a screen, go to the desktop instead of Start”. I also check the boxes “Show the Apps view automatically when I go to Start” and “Search everywhere instead of just my apps when I search from the Apps view”.
- Create a new folder on C: called BGInfo. Place all your BGinfo files into this folder. Edit the BGInfo.bgi file if you want to customize the BGinfo settings. Create a .bat file called bginfolaunch.bat in the BGinfo folder. I have included what I have in my batch file.
- Right click on the start button and choose “Run”. Then type Regedit in the open box.
- Adding the following entry into the registry will cause BGInfo to automatically refresh BGInfo every time you log onto the server. Add a reg key (string value) called BGInfo with the value of C:\BGInfo\bginfolaunch to HKLM\Software\Microsoft\Windows\CurrentVersion\Run.
- Right click on the start button again and this time choose “Control Panel”. Change the view to “Small Icons”. Click on “Power Options”.
- Change the power settings to “High performance”. And then click “Change plan settings”. Set both “Turn off the display” and “Put the computer to sleep” to “Never”.
- Right click on the Powershell icon and the select “Run as Administrator”. Type powercfg –h off and press “Enter”.
- Click “File Explorer” on the task bar. Click “View” then “Options” and then “Change folder and search options”
- Check “Display the full path in the title bar area” and click the radio button for “Show hidden files, folders, and drives”. Uncheck “Hide protected operating system files”.
- Right click the start button and click “Run”. Type gpedit.msc in the run box. When the group policy window comes up go to Computer Configuration/Windows Settings/Security Settings/Local Policies/Security Options. Set “User Account Control: Run all administrators in Admin Approval Mode” to disabled.
- Then change “User Account Control: Behavior of the elevation prompt for administrators” to Elevate without prompting.
The final thing is to include Logoff and Disk Manager Icons on the desktop. Create them and place them in C:\Users\Public\Desktop.
Posted in Server 2012, Templates, VMs, VMware Vcenter Server, VMware Vsphere 5, Windows Server 2012 R2
Tagged Server 2012, Server 2012 R2, Templates, VMware Vcenter Server, vSphere 5, vSphere 5.1