Some time the hyper-v replication get in to suspended mode or halt on any other reason, here is a Powershell script to run from the replica server which will start the replication again :
$ReplicationData = Get-VMReplication
Foreach ($VMReplica in $ReplicationData) {
Write-Host "Starting Replication on" $VMReplica.Name
Do{
If ($VMReplica.Health -eq "Suspended" -Or $VMReplica.Health -eq "Critical" -or $VMReplica.Health -eq "Warning") {
Write-Host "VM Replication is in Critical Error State and suspended, Suspend and resuming Replication that is:" $VMReplica.State
Suspend-VMReplication -ComputerName $VMReplica.ReplicaServer -VMName $VMReplica.Name
Suspend-VMReplication -ComputerName $VMReplica.PrimaryServer -VMName $VMReplica.Name
Resume-VMReplication -ComputerName $VMReplica.ReplicaServer -VMName $VMReplica.Name
Resume-VMReplication -ComputerName $VMReplica.PrimaryServer -VMName $VMReplica.Name
start-sleep -s 20
}
}
Until($VMReplicaHealth.Health -notcontains "Normal")
}
I kind of used this idea and expanded to include a domain with multiple clusters and nodes.
$Domain = “HSS”
$Clusters = Get-Cluster -Domain $Domain
foreach ($Cluster in $Clusters) {
$ClusterName = $Cluster.Name
foreach ($Nodes in Get-ClusterNode -Cluster $ClusterName) {
if ($Nodes.State -eq “Down”) {
Write-Host “Node $Nodes is in a Down state.”
Write-Host “`n”
continue
}
Invoke-Command -ComputerName $Nodes -ScriptBlock {
param ($VMName, $Nodes)
$FailedReplicas = Get-VMReplication | Where-Object { $_.Health -eq “Critical” -or $_.Health -eq “Warning” -or $_.State -eq “Suspended” }
$HealthyReplicas = Get-VMReplication | Where-Object { $_.Health -eq “Normal” }
foreach ($VM in $HealthyReplicas) {
$VMName = $VM.Name
$ReplicationState = $VM.State
$ReplicationHealth = $VM.Health
if ($ReplicationHealth -eq “Normal”) {
Write-Host “Nodes: $using:Nodes – VM: $VMName – Health: $ReplicationHealth – State: $ReplicationState”
Write-Host “`n”
}
}
foreach ($VM in $FailedReplicas) {
$VMName = $VM.Name
$ReplicationState = $VM.State
$ReplicationHealth = $VM.Health
if ($ReplicationState -notin @(“Resynchronizing”, “Replicating”)) {
Write-Host “Resuming Suspended Replication for VM: $VMName”
Write-Host “`n”
if ($ReplicationState -eq “Suspended”) {
Resume-VMReplication $VMName
} else {
Resume-VMReplication $VMName -Resynchronize
}
} else {
Write-Host “Skipping replication for Nodes: $using:Nodes – VM: $VMName – Health: $ReplicationHealth – State: $ReplicationState”
Write-Host “`n”
}
}
} -ArgumentList $VMName, $Nodes
}
}
Greate script