{"id":15898,"date":"2014-01-15T10:27:58","date_gmt":"2014-01-15T10:27:58","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=15898"},"modified":"2014-01-15T10:27:58","modified_gmt":"2014-01-15T10:27:58","slug":"kb2901237hyper-v-replica-is-created-unexpectedly-after-restarting-vmms-on-replica-w2012-host","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=15898","title":{"rendered":"KB2901237\u2013Hyper-V Replica Is Created Unexpectedly After Restarting VMMS On Replica WS2012 Host"},"content":{"rendered":"<p>The Virtual Machine Management Service (VMMS) runs in user mode in the management OS of every Hyper-V host. It has nothing to do with SCVMM; that\u2019s just an unfortunate similarity in names. The VMMS provides the WMI or management interface to Hyper-V for all management tools, such as PowerShell, Hyper-V Manager, or Failover Cluster Manager.<\/p>\n<p>Microsoft <a href=\"http:\/\/support.microsoft.com\/kb\/2901237\" target=\"_blank\">published<\/a> a KB article for when a standard Hyper-V replica is created unexpectedly after you restart the VMMS service in Windows Server 2012.<\/p>\n<blockquote>\n<p><strong><u>Symptoms<\/u><\/strong><\/p>\n<p>Consider the following scenario: <\/p>\n<ul>\n<li>You have Windows Server 2012-based Hyper-V servers that are running in an environment that has Hyper Replica deployed. <\/li>\n<li>You set more than two recovery points.&#160; <\/li>\n<li>You restart the VMMS service on a replica server, or you restart the replica server. <\/li>\n<li>You wait about 5 minutes until the first time delta is arrived from the primary site. <\/li>\n<\/ul>\n<p>In this scenario, a standard replica (recovery point) is created unexpectedly.&#160; <br \/><b>Note <\/b>If the time interval between the latest recovery point and the arrival of the delta is less than 60 minutes, a standard replica should not be created.<\/p>\n<p><strong><u>Cause<\/u><\/strong><\/p>\n<p>This issue occurs because the VMMS service incorrectly compares the time stamp of the earliest recovery point to the latest delta time stamp. Therefore, the system takes a new snapshot every time the VMMS service is restarted<\/p>\n<\/blockquote>\n<p>A <a href=\"http:\/\/support.microsoft.com\/hotfix\/KBHotfix.aspx?kbnum=2901237\" target=\"_blank\">hotfix<\/a> has been published to resolve this issue. It\u2019s not an issue I\u2019d expect to see too often but the fix is there.<\/p>\n<div id=\"scid:0767317B-992E-4b12-91E0-4F059A8CECA8:e57bb369-b205-4078-82c6-81c92390ea5a\" class=\"wlWriterEditableSmartContent\" style=\"float: none; padding-bottom: 0px; padding-top: 0px; padding-left: 0px; margin: 0px; display: inline; padding-right: 0px\">Technorati Tags: <a href=\"http:\/\/technorati.com\/tags\/Windows+Server+2012\" rel=\"tag\">Windows Server 2012<\/a>,<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\/DR\" rel=\"tag\">DR<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The Virtual Machine Management Service (VMMS) runs in user mode in the management OS of every Hyper-V host. It has nothing to do with SCVMM; that\u2019s just an unfortunate similarity in names. The VMMS provides the WMI or management interface to Hyper-V for all management tools, such as PowerShell, Hyper-V Manager, or Failover Cluster Manager. &hellip; <a href=\"https:\/\/aidanfinn.com\/?p=15898\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;KB2901237\u2013Hyper-V Replica Is Created Unexpectedly After Restarting VMMS On Replica WS2012 Host&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[20],"tags":[61,181,195,118],"class_list":["post-15898","post","type-post","status-publish","format-standard","hentry","category-hyper-v","tag-dr","tag-hyper-v","tag-virtualisation","tag-windows-server-2012"],"aioseo_notices":[],"jetpack_featured_media_url":"","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/15898","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=15898"}],"version-history":[{"count":0,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/15898\/revisions"}],"wp:attachment":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15898"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15898"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}