PowerCLI: A Simple VM Backup Script
Just lately I've been doing a lot of work in a Lab environment. Some of the work I'm doing is quite important to me so I decided to workout a way I can backup my VM's onto a backup device. To my surprise this was pretty simple to do.Here is how I decided the script should function:[*]Send myself an email telling me that the backup process has started
[*]Import the name of the VM to be backed up and the destination datastore from a CSV file
[*]Create a Snapshot of the VM I want to backup
[*]Create a Clone'd VM from the Snapshot
[*]Place the backup onto my Backup Datastore
[*]Name the backup <master VM name>-<date stamp>
[*]Thin provision the backup
[*]Remove the Snapshot from the master VM
[*]Send myself an email telling me that the backup process has completed
So that's what I wanted to do, this is what I ended up with.Backup Script
# Import Backup CSV$backupinfo = Import-Csv C:\scripts\mybackups.csv#Set Date format for clone names$date = Get-Date -Format "yyyyMMdd"#Set Date format for emails$time = (Get-Date -f "HH:MM")#Connect to vCenterConnect-VIServer "<vc server>"foreach ($customer in $backupinfo){$vm = Get-VM $customer.MasterVM#Send Start EmailC:\scripts\backupstartedemail.ps1# Create new snapshot for clone$cloneSnap = $vm | New-Snapshot -Name "Clone Snapshot"# Get managed object view$vmView = $vm | Get-View# Get folder managed object reference$cloneFolder = $vmView.parent# Build clone specification$cloneSpec = new-object Vmware.Vim.VirtualMachineCloneSpec$cloneSpec.Snapshot = $vmView.Snapshot.CurrentSnapshot# Make linked disk specification$cloneSpec.Location = new-object Vmware.Vim.VirtualMachineRelocateSpec$cloneSpec.Location.Datastore = (Get-Datastore -Name $customer.BackupDS | Get-View).MoRef$cloneSpec.Location.Transform = ::sparse$cloneName = "$vm-$date"# Create clone$vmView.CloneVM( $cloneFolder, $cloneName, $cloneSpec )# Write newly created VM to stdout as confirmationGet-VM $cloneName# Remove Snapshot created for cloneGet-Snapshot -VM (Get-VM -Name $customer.MasterVM) -Name $cloneSnap | Remove-Snapshot -confirm:$False#Send Complete EmailC:\scripts\backupcompletedemail.ps1}#Disconnect from vCentreDisconnect-VIServer -Confirm:$false
Send Started Email Script
#Set Date format for emails$timestart = (Get-Date -f "HH:MM")$emailFrom = "<senders address>"$emailTo = "<recipients address>"$subject = "[$vm - Backup Started]"$body = "Backup Details-------------VM Name:",$vm,"Clone Name:","$vm-$date","Target Datastore:", $customer.BackupDS,"Time Started:", $timestart$smtpServer = "<smtp server>"$smtp = new-object Net.Mail.SmtpClient($smtpServer)$smtp.Send($emailFrom,$emailTo,$subject,$body)
Send Completed Email Script
#Set Date format for emails$timecomplete = (Get-Date -f "HH:MM")$emailFrom = "<senders address>"$emailTo = "<recipients address>"$subject = "[$vm - Backup Complete]"$body = "Backup Details-------------VM Name:",$vm,"Clone Name:","$vm-$date","Target Datastore:", $customer.BackupDS,"Time Started:", $timestart,"Time Completed:", $timecomplete$smtpServer = "<smtp server>"$smtp = new-object Net.Mail.SmtpClient($smtpServer)$smtp.Send($emailFrom,$emailTo,$subject,$body)
Content of CSVThe content of the csv file is very simple. This is what mine looks like:MasterVM,BackupDS
VM1,BackupDataStore
VM2,BackupDataStoreSummarySo as you can see, it's simple, but very effective. Let me know your thoughts/Idea's on this could be improved. 不知该说些什么。。。。。。就是谢谢 生我之前谁是我，生我之后我是谁？ 俺从不写措字，但俺写通假字! 我本非随便的人，但如果你想随便，那我就随你的便好啦！ 吃饭与ml是第一生产力。 读书读到抽筋处，文思方能如尿崩!
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