The latest on High Availability & Site Resilience

The Discussion

• 

  The notes have been removed from the slides, so here are all the commands Dmitry used in his demo:

  #drain transport queues:
  Set-ServerComponentState $server -Component HubTransport -State Draining -Requester Maintenance
  #drain UM queue:
  Set-ServerComponentState $server -Component UMCallRouter –State Draining –Requester Maintenance
  # Set messaging redirection 
  Redirect-Message -Server $server -Target EXADV-2052.EXHV-7511dom.extest.microsoft.com -Confirm:$false
  # Suspend cluster node
  Suspend-ClusterNode $server -confirm:$false
  # server activation disfavored: 
  Set-MailboxServer $ server -DatabaseCopyActivationDisabledAndMoveNow $True -confirm:$false
  # server activation blocked
  Set-MailboxServer $server -DatabaseCopyAutoActivationPolicy Blocked -confirm:$false
  # Set all ServerComponentStates Offline
  Set-ServerComponentState $server             -Component ServerWideOffline -State Inactive -Requester Maintenance -confirm:$false
  
  Get-ServerComponentState $server| ft  -Autosize
  Get-MailboxServer $server | ft DatabaseCopy* -Autosize
  Get-ClusterNode $server | fl
  Get-Queue  -Server $server

  Second part of the demo:

  # how to collect all definitions from crimson channel?
  $probedefinitions = (Get-WinEvent -LogName Microsoft-Exchange-ActiveMonitoring/ProbeDefinition | % {[XML]$_.toXml()}).event.userData.eventXml 
  $responderdefinitions = (Get-WinEvent -LogName "Microsoft-Exchange-ActiveMonitoring/ResponderDefinition" | % {[xml]$_.toXml()}).event.userData.eventXml
  $monitordefinitions = (Get-WinEvent -LogName Microsoft-Exchange-ActiveMonitoring/MonitorDefinition | % {[xml]$_.toXml()}).event.userData.eventXml
  
  # Rollup monitor results from get-servehealth and get-healthreport:
  Get-ServerHealth -HealthSet dataprotection -Identity $server| ft -a
  Get-HealthReport -Identity $server
  Get-HealthReport -RollupGroup DAG01
  
  # one copy monitor: injecting notification and show that Monitor changes from “Healthy” to “Unhealthy”. 
  .\red.ps1# failure notification injection
  Get-ServerHealth -Identity $server| ?{$_.name -like "*onecopy*"}
  .\green.ps1# all healthy notification
  Get-ServerHealth -Identity $server| ?{$_.name -like "*onecopy*"}
  
  
  # replendpoint monitor: to  display how we can find probes and responders corresponding to a monitor (in this case there are 3 and 5). 
  $probes = @(); foreach ($p in $probedefinitions) {if ($p.name -like "*ServiceHealthMSExchangeReplEndpoint*") {$probes += $p;} }
  $probes | fl name,typename
  $responders = @(); foreach ($r in $responderdefinitions) {if ($r.alertmask -like "*ServiceHealthMSExchangeReplEndpoint*") {$responders += $r;} }
  $responders | fl name, TypeName
  
  # Also, displaying and walking through timeline of responders – going from restart to escalate
  $monitordefinitions = (Get-WinEvent -LogName Microsoft-Exchange-ActiveMonitoring/MonitorDefinition | % {[xml]$_.toXml()}).event.userData.eventXml
  $monitordefinitions | ?{$_.name -like "*replendpoint*"} | fl name, StateTransitionsXml
  
  # to MM and back to production :
  
  Set-ServerComponentState $server -Component HubTransport -State Draining -Requester Maintenance
  Set-ServerComponentState $server -Component UMCallRouter –State Draining –Requester Maintenance
  Redirect-Message -Server $server -Target EXADV-2052.EXHV-7511dom.extest.microsoft.com -Confirm:$false
  Suspend-ClusterNode $server -confirm:$false
  Set-MailboxServer $server -DatabaseCopyActivationDisabledAndMoveNow $True -confirm:$false
  Set-MailboxServer $server -DatabaseCopyAutoActivationPolicy Blocked -confirm:$false
  Set-ServerComponentState $server -Component ServerWideOffline -State Inactive -Requester Maintenance -confirm:$false
  
  Get-ServerComponentState $server| ft  -Autosize
  Get-MailboxServer $server| ft DatabaseCopy* -Autosize
  Get-ClusterNode $server| fl
  Get-Queue  -Server $server
  $queueTypes = @("DnsConnectorDelivery", "SmtpDeliveryToMailbox", "MapiDelivery", "SmtpRelayToRemoteAdSite", "SmtpRelayToDag", "SmtpRelayToServers")
  $queues = get-queue -server $Server -ErrorAction SilentlyContinue -filter {MessageCount -gt 0} | `
      ?{($QueueTypes -contains $_.DeliveryType -or $_.NextHopDomain -eq "Submission") -and (($_.MessageCountsPerPriority | Measure-Object -Sum).Sum -gt 0)}
  
  # ***
  
  Set-ServerComponentState $server -Component ServerWideOffline -State Active -Requester Maintenance
  Set-ServerComponentState $server -Component UMCallRouter –State Active –Requester Maintenance
  Resume-ClusterNode $server
  Set-MailboxServer $server -DatabaseCopyActivationDisabledAndMoveNow $False -Confirm:$false
  Set-MailboxServer $server -DatabaseCopyAutoActivationPolicy Unrestricted -Confirm:$false
  Set-ServerComponentState $server -Component HubTransport -State Active -Requester Maintenance -Confirm:$false
  Restart-Service MSExchangeTransport
  
  Get-ServerComponentState $server| ft  -Autosize
  Get-MailboxServer $server| ft DatabaseCopy* -Autosize
  Get-ClusterNode $server| fl
  Get-Queue  -Server $server