What is VMware snapshot ?
A VMware snapshot is a copy of the virtual machine’s disk file (VMDK) at a given point in time. Snapshots provide a change log for the virtual disk and are used to restore a VM to a particular point in time when a failure or system error occurs.
Snapshot details powerCLI script :
Open the PowerCLI icon (Run as Administrator) and you can execute commands manually, run scripts manually or automate your scripts with Task Scheduler (see below).
Function Test-Cred{
Param ($cred)
$username = $cred.username
$password = $cred.GetNetworkCredential().password
# Get current domain using logged-on user's credentials
$CurrentDomain = "LDAP://" + ([ADSI]"").distinguishedName
$domain = New-Object System.DirectoryServices.DirectoryEntry($CurrentDomain,$UserName,$Password)
if ($domain.name)
{
return "TRUE"
}
else
{
return "FALSE"
}
}
Clear-Host
del *.csv
Set-ExecutionPolicy RemoteSigned
Set-ExecutionPolicy Unrestricted
$outfile=""
$vc = "SvrList.txt"
$i=0
$j=0
$k=0
$l=0
$prodflag=0
$drflag=0
$uatflag=0
$prodCreds="NULL"
$DrCreds="NULL"
$uatCreds="NULL"
$vcnt = (Get-Content $vc).Count
Get-Content $vc | ForEach-Object {
# Write-Host $_
If ( $_ | Select-String -Pattern "prod.test.com")
{
# Write-Host " Server : $_ belongs To prod Domain"
$prodflag=1
}
if ($_ | Select-String -Pattern "uat.test.com")
{
# Write-Host " Server : $_ belongs To uat Domain"
$drflag=1
}
if ($_ | Select-String -Pattern "dr.test.com")
{
# Write-Host " Server : $_ belongs To dr Domain"
$uatflag=1
}
}
if($prodflag -eq 1)
{
Write-Host " You need to provide Creds for prod Domain"
$prodCreds=$host.ui.PromptForCredential("Need credentials", "Please enter your user name and password.", "", "NetBioUserName")
$flag=Test-Cred($prodCreds)
if ($flag -eq "TRUE")
{
Write-Host " Authentication Successful For prod Domain" -f green
}
else
{
Write-Host " Authentication Failed For prod Domain .... exiting" -f green
exit
}
}
if($uatflag -eq 1)
{
Write-Host " You need to provide Creds for uat Domain"
$uatCreds=$host.ui.PromptForCredential("Need credentials", "Please enter your user name and password.", "", "NetBioUserName")
$flag=Test-Cred($uatCreds)
if ($flag -eq "TRUE")
{
Write-Host " Authentication Successful For uat Domain" -f green
}
else {
Write-Host " Authentication Failed For uat Domain .... exiting" -f green
exit
}
}
if($drflag -eq 1)
{
Write-Host " You need to provide Creds for DR Domain"
$drCreds=$host.ui.PromptForCredential("Need credentials", "Please enter your user name and password.", "", "NetBioUserName")
$username = $drCreds.username
$password = $drCreds.GetNetworkCredential().password
# Get current domain using logged-on user's credentials
$CurrentDomain = "LDAP://" + ([ADSI]"").distinguishedName
$domain = New-Object System.DirectoryServices.DirectoryEntry($CurrentDomain,$UserName,$Password)
if($domain)
{
Write-Host " Authentication Successful For dr Domain" -f green
}
else {
Write-Host " Authentication Failed For dr Domain .... exiting" -f green
exit
}
}
Get-Content $vc | ForEach-Object {
$vcenter=$_
$outfile = ".\$($vcenter).csv"
try
{
$bestping = (Test-Connection -ComputerName $vcenter -Count 10 -ErrorAction STOP | Sort ResponseTime)[0].ResponseTime
}
catch
{
Write-Warning $_.Exception.Message
$bestping = "Unable to connect"
continue
}
if ($bestping -eq "Unable to connect")
{
Write-Host "Unable to connect to $vcenter ..... Skipping" -f cyan
exit
}
try{
Write-Host "Connecting to vCenter : $vcenter, please wait.." -f blue
if ($vcenter | Select-String -Pattern "dr.test.com")
{
Connect-ViServer -server $vcenter -Credential $drCreds| Out-Null
}
elseif ($vcenter | Select-String -Pattern "uat.test.com")
{
Connect-ViServer -server $vcenter -Credential $uatCreds| Out-Null
}
elseif ($vcenter | Select-String -Pattern "prod.test.com")
{
Connect-ViServer -server $vcenter -Credential $prodCreds| Out-Null
}
}
catch{
#Write-Warning $_.Exception.Message
$exception = $_.Exception
# Write-debug "Could not connect to vCenter"
Write-Host "Exiting ....." -f red
exit
}
Write-Host " Connected. " -f green
Write-Host "Processing $vcenter"
$i++
$j=0
$k=0
$l=0
try{
Write-Progress -Activity "Scanning vCenter .... " -Status ("vCenter : {0}" -f $vcenter) -PercentComplete ($i/$vcnt*100) -Id 0
}
catch [System.DivideByZeroException]{
}
$outfile=$vcenter+".csv"
$dcs=Get-Datacenter
$data=foreach( $dc in $dcs)
{
$j++
$k=0
$l=0
$clusters = $dc | Get-Cluster
try{
Write-Progress -Activity "Scanning DataCenter .... " -Status ("Datacenter : {0}" -f $dc.Name) -PercentComplete ($j/$dcs.count*100) -Id 1
}
catch [System.DivideByZeroException]{
}
foreach($cluster in $clusters)
{
$k++
$l=0
try{
Write-Progress -Activity " Scanning Clusters .... " -Status ("Cluster : {0}" -f $cluster.Name) -PercentComplete ($k/$clusters.count*100) -Id 2
}
catch [System.DivideByZeroException]{
}
$vms = $cluster | Get-VM
$result = $vms | Get-Snapshot
if (!$result)
{
# Write-Host "No Snapshots in Cluster : $cluster.Name"
continue
}
foreach ($snap in $result)
{
$l++
<#
try{
Write-Progress -Activity " Processing SnapShot info .... " -Status ("Cluster : {0}" -f $snap) -PercentComplete ($l/$clusters.count*100) -Id 2
}
catch [System.DivideByZeroException]{}
#>
$snapevent = Get-VIEvent -Entity $snap.VM -Types Info -Finish $snap.Created -MaxSamples 1 | Where-Object {$_.FullFormattedMessage -imatch 'Task: Create virtual machine snapshot'}
if ($snapevent -ne $null)
{
Write-Host ( "VM: "+ $snap.VM + ". Snapshot '" + $snap + "' created on " + $snap.Created.DateTime + " by " + $snapevent.UserName +".")
}
else {
Write-Host ("VM: "+ $snap.VM + ". Snapshot '" + $snap + "' created on " + $snap.Created.DateTime + ". This event is not in vCenter events database")
$snapevent.UserName = "This event is not in vCenter events database"
}
New-Object PSObject -Property @{
VCenter = $vcenter
DataCenter = $dc
Cluster = $cluster.name
EsxHost = $snap.VM.Host
VMName = $snap.VM
PowerState = $snap.PowerState
SnapshotName = $snap
SizeGB = $snap.SizeGB
Description = $snap.Description
# Filename
DateCreated = $snap.Created.DateTime
CreatedBy = $snapevent.UserName
Quiesced = $snap.Quiesced
} | Select VCenter,Datacenter,Cluster,EsxHost,VMName,PowerState,SnapshotName,SizeGB,Quiesced,Description,DateCreated,CreatedBy
}
}
}
# }
$data | Export-Csv $outfile -NoTypeInformation
Write-Host "Disconnecting from vCenter : $vcenter"
Disconnect-VIServer $vcenter -confirm:$false | Wait-Task | out-null
# Wait-Task -Task $task
Write-Host "Processing Done Dumping : $outfile " -f green
}
<#
Write-Host "Finalizing ......" -f cyan
$swp = @()
ls *.csv | %{
$tmp = Import-CSV $_
$swp += $tmp
}
$swp | Export-CSV .\All-vCenter-SnapInfo.csv -NoTypeInformation
Write-Host "Completed....Please Check the Generated : All-vCenter-Info.csv" -f cyan
#>
Thanks hope you like it.
Rajiv Pandey.