# When displaying to the screen an output file is created. Set the format of the filename below:
$dateFormat = “yyyy-MM-dd__HH-mm”

# path and file name of output report
$date = Get-Date -format $dateFormat
$outputFile = ‘C:\vCheck_Reports\ESX-comparison_’ + $date + ‘.html’

# Virtual Center servername
$VCServer = “vcenter”

# Set the SMTP Server address
$SMTPSRV = “mail.domain.local”

# Set the Email address to recieve from
$EmailFrom = “user@domain.com”

# Set the Email address to send the email to – seperate multiple with comma
$EmailTo = “user@domain.com”

# When displaying to the screen an output file is created. Set the format of the filename below:
$dateFormat = “yyyyMMdd_HHmm” # use “d-M-yyyy” for legacy v5.0 format

# Use the following item to define if an email report should be sent once completed
$SendEmail = $true

# Use the following item to define if the output should be displayed in the local browser once completed
$DisplaytoScreen = $false

function Send-SMTPmail($to, $from, $subject, $smtpserver, $body) {
$mailer = new-object Net.Mail.SMTPclient($smtpserver)
$msg = new-object Net.Mail.MailMessage($from,$to,$subject,$body)
$msg.IsBodyHTML = $true
$mailer.send($msg)
}

Function Create-HTMLTable
{
param([array]$Array)
$arrHTML = $Array | ConvertTo-Html
$arrHTML[-1] = $arrHTML[-1].ToString().Replace(”,”")
Return $arrHTML[5..1000]
}

$output = @()
$output += ”
$output += ‘.sectionTitle{color:blue;font-weight:bold;}.section{margin-top:10px;margin-bottom:30px;}.errorDiv{color:red;font-weight:bold;}table{border-style:solid;border-width:1px;font-size:8pt;background-color:#ccc;width:100%;}th{text-align:left;}td{background-color:#fff;width:20%;border-style:solid;border-width:1px;}body{font-family:verdana;font-size:8pt;}h1{font-size:12pt;}h2{font-size:10pt;}’

$output += ‘ESXi Host Inconsistency Report’
# $output += ‘The following items are not available to all ESX servers in the cluster:’

$VC = Connect-VIServer $VCServer

ForEach ($Cluster in (Get-Cluster | Sort Name))
{
$VMHosts = $Cluster | Get-VMHost | Sort Name
$VMHostViews = $VMHosts | Get-View | Sort Name

$myDSCol = @()
$Datastores = Get-Datastore -VMHost $VMHosts
$DSdiffs = $VMHosts | ForEach {Compare-Object $Datastores (Get-Datastore -VMHost $_) -SyncWindow 1000} | ForEach {$_.InputObject} | Sort Name | Select Name -Unique
ForEach ($DSdiff in $DSdiffs)
{
If ($DSdiff.Name -ne $null)
{
$myDSObj = “” | Select Datastore
$myDSObj.Datastore = $DSdiff.Name
ForEach ($VMHost in $VMHosts)
{
$myDSObj | Add-Member -MemberType NoteProperty -Name $VMHost.Name -Value (!!(Get-Datastore -Name $myDSObj.Datastore -VMHost $VMHost -ErrorAction SilentlyContinue))
}
$myDSCol += $myDSObj
}
}

$myLUNCol = @()
$LUNs = $VMHostViews | ForEach {$_.Config.StorageDevice.ScsiLun | ForEach {$_.Uuid}} | Select -Unique
$LUNdiffs = @()
ForEach ($VMHostView in $VMHostViews)
{
$HostLUNs = $VMHostView.Config.StorageDevice.ScsiLun | ForEach {$_.Uuid} | Select -Unique
$LUNdiffs += Compare-Object $LUNs $HostLUNs -SyncWindow 1000 | ForEach {$_.InputObject}
Clear-Variable HostLUNs -ErrorAction SilentlyContinue
}
ForEach ($LUNdiff in ($LUNdiffs | Select -Unique | Sort))
{
If ($LUNdiff -ne $null)
{
$myLUNObj = “” | Select LunUuid
$myLUNObj.LunUuid = $LUNdiff
ForEach ($VMHostView in $VMHostViews)
{
If (($VMHostView.Config.StorageDevice.ScsiLun | Where {$_.Uuid -eq $myLUNObj.LunUuid}) -ne $null)
{
$myLUNObj | Add-Member -MemberType NoteProperty -Name $VMHostView.Name -Value (($VMHostView.Config.StorageDevice.ScsiLun | Where {$_.Uuid -eq $myLUNObj.LunUuid}).CanonicalName)
}
Else
{
$myLUNObj | Add-Member -MemberType NoteProperty -Name $VMHostView.Name -Value $False
}
}
$myLUNCol += $myLUNObj
}
}

$myPGCol = @()
$PortGroups = Get-VirtualPortGroup -VMHost $VMHosts | ForEach {$_.Name} | Select -Unique
$PGdiffs = @()
ForEach ($VMHost in $VMHosts)
{
$HostPGs = Get-VirtualPortGroup -VMHost $VMHost | ForEach {$_.Name} | Select -Unique
$PGdiffs += Compare-Object $PortGroups $HostPGs -SyncWindow 1000 | ForEach {$_.InputObject}
Clear-Variable HostPGs -ErrorAction SilentlyContinue
}
ForEach ($PGdiff in ($PGdiffs | Select -Unique | Sort))
{
If ($PGdiff -ne $null)
{
$myPGObj = “” | Select PortGroup
$myPGObj.PortGroup = $PGdiff
ForEach ($VMHost in $VMHosts)
{
$myPGObj | Add-Member -MemberType NoteProperty -Name $VMHost.Name -Value (!!(Get-VirtualPortGroup -Name $myPGObj.PortGroup -VMHost $VMHost -ErrorAction SilentlyContinue))
}
$myPGCol += $myPGObj
}
}

$output+= ”
$output += $Cluster.Name
$output+= ”
$output += ‘Datastore check: ‘
If ($myDSCol.Count -eq 0)
{
$output += “All datastores OK.”
$output += ”
}
Else
{
$output += ‘ERROR: Datastore config has incontistencies! Please investigate.’
$output += Create-HTMLTable $myDSCol
$output += ”
}

$output += ‘LUN check: ‘
If ($myLUNCol.Count -eq 0)
{
$output += ‘All LUNs OK.’
$output += ”
}
Else
{
$output += ‘ERROR: LUN config has incontistencies! Please investigate.’
$output += Create-HTMLTable $myLUNCol
$output += ”
}

$output += ‘Portgroup check: ‘
If ($myPGCol.Count -eq 0)
{
$output += “All portgroups OK.”
$output += ”
}
Else
{
$output += ‘ERROR: Portgroup config has incontistencies! Please investigate.’
$output += Create-HTMLTable $myPGCol
$output += ”
}

Clear-Variable VMHosts -ErrorAction SilentlyContinue
Clear-Variable Datastores -ErrorAction SilentlyContinue
Clear-Variable DSdiffs -ErrorAction SilentlyContinue
Clear-Variable PortGroups -ErrorAction SilentlyContinue
Clear-Variable PGdiffs -ErrorAction SilentlyContinue
Clear-Variable LUNs -ErrorAction SilentlyContinue
Clear-Variable LUNdiffs -ErrorAction SilentlyContinue
}

$output += ”
$output | Out-File $outputFile -Force
if ($DisplayToScreen) {
Write-Host “..Displaying HTML results”
Invoke-Item $Filename
}

Disconnect-VIServer -Confirm:$False

if ($SendEmail) {
Write-Host “..Emailing HTML results”
send-SMTPmail $EmailTo $EmailFrom “$VCServer ESXi host comparison check” $SMTPSRV $output
}

Great script, I was a little confused on one of my outputs because there were several vmhba devices denoted across the ESXhosts. It is simple to figure out the ones that have 1 vmhba denoted and the rest saying true or false but having more than one has confused me. Can you help to decipher this?

LunUuid ESX001.xxx ESX002.xxx ESX003.xxx ESX005.xxx ESX011.xxx ESX020.xxx
0200010000600508b400106b3400009000020c0000485356323130 vmhba0:4:1 vmhba0:2:1 vmhba0:4:1 vmhba0:1:1 False vmhba0:2:1
0200020000600508b400106b3400009000020c0000485356323130 False False False False vmhba0:4:2 False
0200020000600508b400106b340000900002110000485356323130 vmhba0:4:2 vmhba0:2:2 vmhba0:4:2 vmhba0:1:2 False vmhba0:2:2
0200030000600508b400106b340000900002110000485356323130 False False False False vmhba0:4:3 False

Thanks!

Also, it would take longer but could you include a host rescan before the script starts executing so that all of the data can be current?

Got the same issue, its reporting my local drives as datastores and reporting a mismatch on the clusters.

Any chance of looking into this? Great work otherwise… love it!

I was trying to do exactly as Daniel requested and managed to fudge something together. Would appreciate it if you would take the time to have a look and see how it could be improved as i think the method I came up with to compare VLANS works but is a little convoluted.

let me know if you have the time or inclination to take a look and i’ll post the script.