Validating Hyper-V 2012 and Failover Clustering 2012 Hotfixes and updates with Powershell
Hi! I know I didn’t write anything for a long time but now I am back again. The good thing about this long “silence” on my blog is that I’ve been really busy helping customers to deploy Windows Server 2012 Hyper-V. This is awesome because the general feeling is that this version is probably the best Hypervisor on the market today. Of course this is a personal opinion and may be influenced by the fact that I work for Microsoft, but it is also true that probably now is the first time I can say it proudly.
Today I want to share with you a really simple Powershell script that detects if your Hyper-V 2012 hosts have installed the updates listed on the TechNet Wiki site that the Product group is updating regularly. The Wiki Site is this one : https://social.technet.microsoft.com/wiki/contents/articles/15576.hyper-v-update-list-for-windows-server-2012.aspx
Also, the same Powershell script detects if the Failover Cluster 2012 updates listed on this KB article are installed https://support.microsoft.com/kb/2784261. This KB article is also maintained by the PG, so I really encourage you to add both links in your favorites.
UPDATE: Carlos Mayol from our PFE Virtualization team pointed me to this Wiki article as well. https://social.technet.microsoft.com/wiki/contents/articles/15577.list-of-failover-cluster-hotfixes-for-windows-server-2012.aspx, so I’ve updated the Cluster XML file to also check these hotfixes . Thank you Carlos ;)
June 6th 2013 UPDATE: XML files have been updated to include the latest changes and updates from the wiki site.
June 22th 2013 UPDATE: XML files have been updated to include the latest changes and updates from the wiki site.
July 15th 2013 UPDATE: XML files have been updated to include the latest changes and updates from the wiki site.
September 24th 2013 UPDATE: XML files have been updated to include the latest changes and updates from the wiki site. (This rollup is important because includes hotfix 2877211 to properly collect disc latency information with perfmon)
The script load 2 XML files content with the list of the hotfixes for Hyper-V and Cluster (I decided two keep them separate for consistency) and then compares this list with the installed hotfixes on your Hyper-V host. I will keep the XML files up to date so come back here for the latest version in the future. The current version of the script includes hotfixes listed on May 24th 2013.
The output is simple and you will quickly see if you need to install some of them or your hosts are up to date. (Please read if the hotfix applies to your environment based on the comments from the links mentioned before)
One last thing! You can specify more than one server to analyze separating the names with “comas” but will require to have permissions to collect the information remotely. The last consideration is that you must unzip the XML and the PS1 files on the same folder. The script will load the XML files content from the current path of the script.
The syntax to execute the script is
"c:\folder\HyperV2012UpdatesCheck.ps1 server1,server2,serverX..”
And here you have the code in case you want to take a look before running it.
1: param
2: (
3: [parameter(mandatory=$True)]
4: [String[]]$HyperHostName
5:
6: )
7:
8: #Getting current execution path
9: $scriptpath = $MyInvocation.MyCommand.Path
10: $dir = Split-Path $scriptpath
11:
12: #Loading list of updates from XML files
13:
14: [xml]$SourceFileHyperV = Get-Content $dir\UpdatesListHyperV.xml
15: [xml]$SourceFileCluster = Get-Content $dir\UpdatesListCluster.xml
16:
17: $HyperVHotfixes = $SourceFileHyperV.Updates.Update
18: $ClusterHotfixes = $SourceFileCluster.Updates.update
19:
20: #Getting Hotfixes installed on the specified Hyper-V Host
21:
22: foreach($VMHost in $HyperHostName)
23: {
24: $Hotfixes = Get-HotFix -ComputerName $VMHost |select HotfixID,description
25:
26: Write-Host "COLLECTING HOTFIXES ON HYPER-V HOST: " $HyperHostName -ForegroundColor Yellow
27: Write-Host "Listing Hyper-V 2012 Hotfixes" -ForegroundColor Yellow
28: foreach($RecomendedHotfix in $HyperVHotfixes)
29: {
30: $witness = 0
31: foreach($hotfix in $Hotfixes)
32: {
33: If($RecomendedHotfix.id -eq $hotfix.HotfixID)
34: {
35: Write-Host "--------------------------"
36: Write-Host "Hyper-V Host: "$VMHost
37: Write-Host $RecomendedHotfix.Id "installed" -ForegroundColor Green
38: write-host $RecomendedHotfix.Description
39: Write-Host "--------------------------"
40: $witness = 1
41: }
42: }
43: if($witness -eq 0)
44: {
45: Write-Host "--------------------------"
46: Write-Host "Hyper-V Host: "$VMHost
47: Write-Host $RecomendedHotfix.Id "not installed" -ForegroundColor Red
48: write-host $RecomendedHotfix.Description
49: Write-Host "--------------------------"
50: }
51:
52: }
53:
54: Write-Host "Listing Failover Cluster 2012 Hotfixes" -ForegroundColor Yellow
55:
56: foreach($RecomendedClusterHotfix in $ClusterHotfixes)
57: {
58: $witness = 0
59: foreach($hotfix in $Hotfixes)
60: {
61: If($RecomendedClusterHotfix.id -eq $hotfix.HotfixID)
62: {
63: Write-Host "--------------------------"
64: Write-Host "Hyper-V Host: "$VMHost
65: Write-Host $RecomendedClusterHotfix.Id "installed" -ForegroundColor Green
66: write-host $RecomendedClusterHotfix.Description
67: Write-Host "--------------------------"
68: $witness = 1
69: }
70: }
71: if($witness -eq 0)
72: {
73: Write-Host "--------------------------"
74: Write-Host "Hyper-V Host: "$VMHost
75: Write-Host $RecomendedClusterHotfix.Id "not installed" -ForegroundColor Red
76: write-host $RecomendedClusterHotfix.Description
77: Write-Host "--------------------------"
78: }
79: }
80: }
Comments
Anonymous
January 01, 2003
June 6th 2013 UPDATE: XML files have been updated to include the latest changes and updates from the wiki site.Anonymous
January 01, 2003
Very good script. Thanks a lot.Anonymous
January 01, 2003
I feel that this is very useful script but I can't try it because there aren't xml files by the download link:). There's only ps1 file...Anonymous
January 01, 2003
Hi guys, I have upload the zip file again that includes the XML files. Please check it again.Anonymous
January 01, 2003
Sorry, I post my question 5 minutes later without refresh and Anatoly post the same :-)Anonymous
January 01, 2003
Excellent work, Cristian!! Very useful!Anonymous
June 08, 2013
Cristian, I just updated the list of Hyper-V hotfixes on the wiki page. Have a look; probably need to make some XML updates :)Anonymous
June 11, 2013
Hi, I am looking for xml files. The link for download contain only 5040.HyperV2012UpdatesCheck_081871D1.ps1 script. No .zip file with xml files. "You can download it from here:" is blank. Is it correct?Anonymous
June 11, 2013
The comment has been removedAnonymous
June 19, 2013
Thanks Cristian for sharing your knowledge and for the useful script :-)Anonymous
July 01, 2013
Great script, I have added some object and download stuff in this vniklas.djungeln.se/.../hotfix-and-updates-check-of-hyper-v-and-cluster-with-powershell keep up the good work!Anonymous
July 30, 2013
The comment has been removedAnonymous
September 04, 2013
Hi Cristian, Could you tell me how to update the xml files so we can do this manually and avoid waiting for your updates? Thanks!Anonymous
October 09, 2013
Does your script check for updates applicable to Windows Server 2012 R2?Anonymous
October 15, 2013
Windows Server 2012 R2 will have no hotfixes at the momentAnonymous
November 17, 2013
Hi! I’ve started new project on GitHub that hosts this script and I currently work to create some improvements – seegithub.com/.../Get-WindowsHotfixes . Today I’ve updated UpdatesListCluster.xml – list of hotfixes for Windows Server 2012 – information about KB2894464 was added. Please feel free to colaborate. Wojciech SciesinskiAnonymous
January 07, 2014
** Newly updated to include 2012 R2 Best Practices. See 11/03/2013 blog regarding R2 updates byAnonymous
January 21, 2014
Cracking work thanks :-)Anonymous
February 09, 2014
Hi, Can we get the PS for win 2012 R2 servers? JafarAnonymous
February 11, 2014
Is there a 2012 R2 version available?Anonymous
May 30, 2014
it's been a while since this has been updated even on githubAnonymous
May 31, 2014
Hey there,
If you were aware of my most excellent friend Cristian Edwards’ Hyper-V and FailoverAnonymous
February 20, 2015
Thanks Cristian. Very useful, because the script structure could be used or updated editing the xml and be used as a recurrent operational task with other critical updates.Anonymous
April 25, 2015
Are the XML's up to date at present? (2015-04-25)Anonymous
August 31, 2015
Does this script works against Win 2012 R2 or just plain 2012?