{"id":637,"date":"2017-09-24T20:43:41","date_gmt":"2017-09-24T18:43:41","guid":{"rendered":"http:\/\/itsimple.info\/?p=637"},"modified":"2017-09-24T20:46:42","modified_gmt":"2017-09-24T18:46:42","slug":"microsoft-hyper-v-cluster-csv-enter-pause-state","status":"publish","type":"post","link":"https:\/\/itsimple.info\/?p=637","title":{"rendered":"Microsoft Hyper-V Cluster CSV Enter Pause State"},"content":{"rendered":"<p>\u00a0<\/p>\n<h3>Some time without any warnings the CSV (Cluster Shared Volumes = LUNS) entering pause state . This can cause the VM\u2019s to restart, goes into save state and all other unwanted behavior !<\/h3>\n<p>this can happens for many reasons starting from storage disconnections, ISCSI network problems,Bad subnet\u2019s IP\u2019s for ISCSI network with Stuck Switches as well as Active Directory errors like miss configure DNS server, wrong cluster configuration on DC and more.<\/p>\n<p>Some time the error codes are simple and clear but some time it can be laconic and not clear enough to understand what went wrong .<\/p>\n<p>for example Event ID 5120:<\/p>\n<blockquote class=\"\" dir=\"ltr\">\n<p class=\"\">Event ID: 5120<br \/>\nSource: Microsoft-Windows-FailoverCluster<br \/>\nLevel: Error<br \/>\nDescription: Cluster Shared Volume \u201cvolume_name\u201d is no longer available on this node because of \u201cSTATUS_BAD_NETWORK_PATH(c00000be)\u2019. All I\/O will temporarily be queued until a path to the volume is re-established.<\/p>\n<p class=\"\">Event ID: 5120<br \/>\nSource: Microsoft-Windows-FailoverCluster<br \/>\nLevel: Error<br \/>\nDescription: Cluster Shared Volume \u201cvolume_name\u201d is no longer available on this node because of \u2018STATUS_CONNECTION_DISCONNECTED(c000020c)\u2019. All I\/O will temporarily be queued until a path to the volume is reestablished.<\/p>\n<p>Event ID: 5120<br \/>\nSource: Microsoft-Windows-FailoverCluster<br \/>\nLevel: Error<br \/>\nDescription: Cluster Shared Volume \u201cvolume_name\u201d is no longer available on this node because of \u2018STATUS_MEDIA_WRITE_PROTECTED(c00000a2)\u2019. All I\/O will temporarily be queued until a path to the volume is reestablished.<\/p>\n<p>Event ID generated: 5142<br \/>\nSource: Microsoft-Windows-FailoverCluster<br \/>\nDescription: Cluster Shared Volume \u201cvolume_name\u201d (\u2018Cluster Disk #\u2019) is no longer accessible from this cluster node because of error \u2018ERROR_TIMEOUT(1460)\u2019. Please troubleshoot this node\u2019s connectivity to the storage device and network connectivity.<\/p><\/blockquote>\n<p>You can get this error with out really understand What the hell went wrong. apparently this error codes come from SMB error codes, full list <a href=\"http:\/\/ul969.anheng.com.cn\/news\/1972.html\">here<\/a>.<\/p>\n<div class=\"ng-scope col-xs-24\">\n<div class=\"ng-isolate-scope\">\n<div class=\"kb-cause-section section ng-scope\">\n<p class=\"\">Sometime it can happens when accessing\u00a0a CSV volume from a\u00a0passive (non-coordinator)\u00a0node, the disk I\/O\u00a0to the owning (coordinator) node\u00a0is routed through\u00a0a \u2018preferred\u2019 network adapter and requires SMB be enabled on that\u00a0network adapter. For SMB connections to work on these network adapters, the following\u00a0protocols\u00a0must be\u00a0enabled:<\/p>\n<p class=\"\">just check you have this protocols on the network adapter<\/p>\n<ul>\n<li>Client for Microsoft Networks<\/li>\n<li>File and Printer Sharing for Microsoft Networks<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<p>In any case you should check SMB connection between all nodes as well, First check the version and connections. Run from PowerShell on Hyper-V Node :<\/p>\n<pre>PS C:\\> Get-SmbConnection<\/pre>\n<p>Then run<\/p>\n<pre>PS c:\\> Get-SmbClientConfiguration<\/pre>\n<p>Make sure you have <strong>EnableMultiChannel=True <\/strong><\/p>\n<p>You can make ajustment to you node SMB configuration, all the information and registery keys on this pages :<\/p>\n<p><a href=\"https:\/\/blogs.msdn.microsoft.com\/openspecification\/2013\/03\/27\/smb-2-x-and-smb-3-0-timeouts-in-windows\/\">https:\/\/blogs.msdn.microsoft.com\/openspecification\/2013\/03\/27\/smb-2-x-and-smb-3-0-timeouts-in-windows\/<\/a><\/p>\n<p>\u00a0<\/p>\n<p>https:\/\/blogs.msdn.microsoft.com\/openspecification\/2013\/03\/19\/cifs-and-smb-timeouts-in-windows\/<\/p>\n<p>\u00a0<\/p>\n<hr \/>\n<p>*.You can also insert all the cluster IP and names information on the hosts file on all the Nodes<\/p>\n<h3>Good Luck<\/h3>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 Some time without any warnings the CSV (Cluster Shared Volumes = LUNS) entering pause state . This can cause the VM\u2019s to restart, goes into save state and all other unwanted behavior ! this can happens for many reasons starting from storage disconnections, ISCSI network problems,Bad subnet\u2019s IP\u2019s for ISCSI network with Stuck Switches [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,21,12,18,14],"tags":[],"class_list":["post-637","post","type-post","status-publish","format-standard","hentry","category-hyper-v","category-operating-systems","category-tutorials","category-virtualization","category-windows"],"_links":{"self":[{"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/posts\/637","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itsimple.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=637"}],"version-history":[{"count":0,"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/posts\/637\/revisions"}],"wp:attachment":[{"href":"https:\/\/itsimple.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=637"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itsimple.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=637"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itsimple.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}