{"id":10589,"date":"2010-05-11T21:00:40","date_gmt":"2010-05-11T21:00:40","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=10589"},"modified":"2010-05-11T21:00:40","modified_gmt":"2010-05-11T21:00:40","slug":"webcast-understanding-the-virtual-machine-servicing-tool","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=10589","title":{"rendered":"Webcast: Understanding The Virtual Machine Servicing Tool"},"content":{"rendered":"<p>This is a webcast for the System Center Influencers.&#160; I\u2019ll do my best to blog as it goes along.&#160; It follows the recent beta release of <a href=\"http:\/\/go.microsoft.com\/fwlink\/?LinkId=190209\" target=\"_blank\">VMST 3.0<\/a>.&#160; This is the release I\u2019ve been waiting for.&#160; Prior to this, it really only handled VM\u2019s stored in an offline state in the library.&#160; But now there is patching for:<\/p>\n<ul>\n<li>Offline virtual machines in a SCVMM library <\/li>\n<li>Stopped and saved state virtual machines on a host<\/li>\n<li><strong><u><em>Virtual machine templates<\/em><\/u><\/strong><\/li>\n<li>Offline virtual hard disks in a SCVMM library by injecting update packages (DISM)<\/li>\n<li><strong><u><em>Automated patching of Windows Server 2008 R2 failover cluster hosts running Hyper-V (using Live Migration for zero VM downtime)<\/em><\/u><\/strong><\/li>\n<\/ul>\n<p>Now that\u2019s what I\u2019m talking about!!! We\u2019re very slowly moving towards some of the cool patching functionality for templates that is in VMM v.Next.&#160; That last one is a biggie!<\/p>\n<p><strong><u>The Challenges:<\/u><\/strong><\/p>\n<ul>\n<li>Dormant VM\u2019s miss patch Tuesday.<\/li>\n<li>When they wake up they are non-compliant and vulnerable to network threats.<\/li>\n<li>Patching without VMST is a manual process which is a waste of effort.<\/li>\n<\/ul>\n<p><strong><u>OVMST 2.1<\/u><\/strong><\/p>\n<ul>\n<li>Works with stored VM\u2019s in the VMM library<\/li>\n<li>Patches via WSUS &amp; ConfigMgr with VMM<\/li>\n<li>Move VM to maintenance host, start VM, patch it, shutdown, move to library.<\/li>\n<li>Uses VMM PowerShell cmdlets.<\/li>\n<li>Supports Hyper-V and Virtual Server 2005 R2 SP1<\/li>\n<\/ul>\n<p><strong><u>VSMT 3.0 Beta<\/u><\/strong><\/p>\n<p>Note that it is no longer called the \u201cOffline \u2026\u201d tool.&#160; See the previous features for the reason why.<\/p>\n<p>The offline VM process works as usual, by moving it onto a maintenance host, starting, patching, shutting down and restoring it to the library.<\/p>\n<p><strong><u>Demo of Configuration and Offline Servicing<\/u><\/strong><\/p>\n<p>We see a VMM library with offline VM\u2019s and template VHD\u2019s.&#160; There are 2 hosts.&#160; Some VM\u2019s are stopped, some are in saved state.&#160; One host is labelled as being a maintenance host.&#160; The VMST GUI is the usual System Center MMC \u201cwunderbar\u201d GUI.&#160; The VMM server is selected, along with ConfigMgr and\/or WSUS.&#160; The maintenance host is selected in the wizard.&#160; Credentials for servicing offline VHD\u2019s is entered.&#160; Timeouts for copies and updates are also entered (be careful with service pack updates which can be VERY time consuming \u2013 lesson learned from SMS updating process back in 2005).&#160; <\/p>\n<p>You can create groups for VHD\u2019s, from VM\u2019s in the library, from VM\u2019s in template groups, and from VM\u2019s in host groups.&#160; You now create a servicing job for selected VM\u2019s from the group(s).&#160; You can also specify if the VM should use its own configured virtual network or from a selected VLAN (maintenance network).&#160; A schedule is entered for the job, e.g. now, later or on a recurring basis.&#160; You can track the job process in VMST or in VMM.<\/p>\n<p><strong><u>Servicing Shutdown VM\u2019s on a Host<\/u><\/strong><\/p>\n<p>The VM is moved from the production host to a maintenance host.&#160; Here it is started and patched.&#160; The VM is shutdown and returned to the original host.&#160; The configuration is pretty similar, just using a \u201cstopped VM group\u201d instead.&#160; You can include VM\u2019s with a saved state \u2013 these VM\u2019s will lose their saved state.&#160; This is because the VM is powered (woken) up and powered down.<\/p>\n<p><strong><u>Patching Virtual Machine Templates<\/u><\/strong><\/p>\n<p>These are files stored in the VMM library along with metadata in the VMM SQL database.&#160; Patching these requires using a different method.&#160; VMST creates a \u201cgold VM\u201d from the template and maintains a mapping to it.&#160; The gold VM is started on the maintenance host.&#160; The gold VM is updated.&#160; The gold VM is cloned (not moved or new template).&#160; The cloned VM is sysprepped and replaced the template VHD.&#160; The gold VM is left in place for the next patching.<\/p>\n<p>In the demo, you can select a pre-existing VM from the template that you are going to maintain.&#160; This means you need to deploy 1 VM from each 1 template you keep in the library.&#160; You can choose to backup the template in the library (1 version only per template), just in case the patching breaks the template.<\/p>\n<p><strong><u>Patching Offline (not template) VHD\u2019s<\/u><\/strong><\/p>\n<p>The VHD can be mounted using Diskpart on a maintenance host (not necc. Hyper-V: W7 or W2008 R2) and DISM is used to inject the update packages into the VHD.<\/p>\n<p><strong><u>Patching W2008 R2 Clustered Hyper-V Hosts<\/u><\/strong><\/p>\n<p>Must be W2008 R2 hosts and must be clustered.&#160; It puts a host into VMM maintenance mode \u2013&gt; Live Migrates the VM\u2019s to another host.&#160; It patches the host and removes VMM maintenance mode.&#160; The process repeats through the cluster nodes.<\/p>\n<p>There is no integration with OpsMgr so you\u2019ll need to configure a scheduled maintenance mode (by yourself) there for all of your hosts in the cluster to prevent all sorts of nasty alerts.<\/p>\n<p><strong><u>Summary<\/u><\/strong><\/p>\n<p>This was a good presentation \u2013 very demo focused which I like.&#160; The product is now at a point where I think all VMM users should implement it.<\/p>\n<p><div style=\"padding-bottom: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; float: none; padding-top: 0px\" id=\"scid:0767317B-992E-4b12-91E0-4F059A8CECA8:4b5f5e5e-930e-45fa-9b98-1ea692b36457\" class=\"wlWriterEditableSmartContent\">Technorati Tags: <a href=\"http:\/\/technorati.com\/tags\/Hyper-V\" rel=\"tag\">Hyper-V<\/a>,<a href=\"http:\/\/technorati.com\/tags\/Virtualisation\" rel=\"tag\">Virtualisation<\/a>,<a href=\"http:\/\/technorati.com\/tags\/VMM\" rel=\"tag\">VMM<\/a>,<a href=\"http:\/\/technorati.com\/tags\/WSUS\" rel=\"tag\">WSUS<\/a>,<a href=\"http:\/\/technorati.com\/tags\/ConfigMgr\" rel=\"tag\">ConfigMgr<\/a><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is a webcast for the System Center Influencers.&#160; I\u2019ll do my best to blog as it goes along.&#160; It follows the recent beta release of VMST 3.0.&#160; This is the release I\u2019ve been waiting for.&#160; Prior to this, it really only handled VM\u2019s stored in an offline state in the library.&#160; But now there &hellip; <a href=\"https:\/\/aidanfinn.com\/?p=10589\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Webcast: Understanding The Virtual Machine Servicing Tool&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_wpcom_ai_launchpad_first_post":false,"footnotes":""},"categories":[20],"tags":[173,181,195,196,126],"class_list":["post-10589","post","type-post","status-publish","format-standard","hentry","category-hyper-v","tag-configmgr","tag-hyper-v","tag-virtualisation","tag-vmm","tag-wsus"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"This is a webcast for the System Center Influencers. 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