Need help spiting Azure snapshots into another tenant/subscription - azure

Question

I have a script which snapshots all my disks in a certain RG.
However when I do the snapshotting, I need them to be spat out into another tenant/subscription for a migration project!
I've got as far as snapshotting everything and spitting them into a different RG but I need to take it a step further and spit them into the same named RG but in a different tenant/sub.
My script is below:
Login-AzureRmAccount -Credential $psCred –SubscriptionId $SubscriptionId -ErrorAction Stop | out-null
Connect-AzureRmAccount
Get-AzureRmSubscription -SubscriptionId $SubscriptionId | Select-AzureRmSubscription
$tagResList = Get-AzureRmResource -TagName Environment -TagValue Staging
#$tagResList = Find-AzureRmResource -ResourceGroupNameEquals testrs
#$tagRsList[0].ResourceId.Split("//")
#subscriptions
#<SubscriptionId>
#resourceGroups
#<ResourceGroupName>
#providers
#Microsoft.Compute
#virtualMachines
#<vmName>
foreach($tagRes in $tagResList) {
if($tagRes.ResourceId -match "Microsoft.Compute")
{
$vmInfo = Get-AzureRmVM sandbox207478603000 #$tagRes.ResourceId.Split("//")[4] -Name $tagRes.ResourceId.Split("//")[8]
#Set local variables
$location = $vmInfo.Location
$resourceGroupName = $vmInfo.ResourceGroupName
$timestamp = Get-Date -f MM-dd-yyyy_HH_mm_ss
#Snapshot name of OS data disk
$snapshotName = $vmInfo.Name + $timestamp
#Create snapshot configuration
$snapshot = New-AzureRmSnapshotConfig -SourceUri $vmInfo.StorageProfile.OsDisk.ManagedDisk.Id -Location $location -CreateOption copy
#Take snapshot
New-AzureRmSnapshot -Snapshot $snapshot -SnapshotName $snapshotName snapshots $resourceGroupName
if($vmInfo.StorageProfile.DataDisks.Count -ge 1){
#Condition with more than one data disks
for($i=0; $i -le $vmInfo.StorageProfile.DataDisks.Count - 1; $i++){
#Snapshot name of OS data disk
$snapshotName = $vmInfo.StorageProfile.DataDisks[$i].Name + $timestamp
#Create snapshot configuration
$snapshot = New-AzureRmSnapshotConfig -SourceUri $vmInfo.StorageProfile.DataDisks[$i].ManagedDisk.Id -Location $location -CreateOption copy
#Take snapshot
New-AzureRmSnapshot -Snapshot $snapshot -SnapshotName $snapshotName snapshots $ResourceGroupName
}
}
else{
Write-Host $vmInfo.Name + " doesn't have any additional data disk."
}
}
else{
$tagRes.ResourceId + " is not a compute instance"
}
}
$tagRgList = Get-AzureRmResourceGroup -Tag #{ Environment = "Staging" }

Answer 1

I am not sure if you can save snapshot in another tenant in one command as you'd need to be authenticated there.
I would suggest using azcopy tool to move snapshot files between storage accounts
#######################################
Reviewed your comment and found that indeed you can't use azcopy on vm images.
But you may create access to the snapshot
#Generate the SAS for the snapshot
$sas = Grant-AzSnapshotAccess -ResourceGroupName $ResourceGroupName -SnapshotName $SnapshotName -DurationInSecond $sasExpiryDuration -Access Read
and save it to the destination storage account:
#Copy the snapshot to the storage account
Start-AzStorageBlobCopy -AbsoluteUri $sas.AccessSAS -DestContainer $storageContainerName -DestContext $destinationContext -DestBlob $destinationVHDFileName
More details canbe found here