Powershell script to ping multiple servers at the same time.

Powershell script to ping multiple servers at the same time.
Warning: This script is resource intensive as it starts a powershell instance for each of the jobs. If you have multiple servers then it will take all up all the memory until it finishes all the jobs.

$scriptDir = Split-Path -Parent -Path $MyInvocation.MyCommand.Definition
$serverlist = GC "$scriptdir\list.txt"
$outputpath =  "$scriptdir\pingcheck.txt"



foreach($server in $serverlist)
{

  Start-job    -scriptblock {
                                                                         param([string]$computer,$outputpath)
                                                                         $out = Test-NetConnection -ComputerName $computer
                                                                         if($out.pingsucceeded -eq "True")
                                                                         {
                                                                         $output = "$computer" + "`t" + $out.remoteaddress + "`t" + " is pinging"
                                                                       
                                                                         }
                                                                         Else
                                                                         {
                                                                         $output = "$computer" + "`t" + $out.remoteaddress + "`t" + " is not pinging"
                                                                         Out-File -InputObject $output -FilePath $outputpath -Append
                                                                         }
                                                                         Sleep -Seconds 10
 return $output

                                                                   } -ArgumentList @($server,$outputpath)

 }

$A = Get-Job | Wait-Job | Receive-Job
Write-host "Writing A" -ForegroundColor Yellow
$A
Out-File -InputObject $A -FilePath $outputpath -Append 
Get-job | Remove-Job

Increase VMware Vcenter server disk space using powershell

Increasing virtual disks in VMware is pretty easy and straightforward.
Mapping them to the right disk in your computer is hard. They have not direct correlation seen in the Vmware ui.
So its pretty much guesswork after checking the available diskspace in computer and matching it with the diskspace seen in VMWare.

This script matches the disks in VMware with the one in computer.
Increases the space
Extends all the partitions in your computer which have free diskspace.You shouldn't have diskpace lying around unused anyway ;)

Things you need.
Account which has rights on the VMware server. Account with rights on your computer.
VMware assemblies or powercli installed.

Download link here
https://my.vmware.com/group/vmware/details?downloadGroup=VSP510-PCLI-510&productId=285


 If your script fails with and exception for SoapInterceptor
find the dll VMware.VimAutomation.Logging.SoapInterceptor.dll in your powercli install directory.
and add this line to your script after placing it in the right location.

[System.Reflection.Assembly]::LoadFrom("c:\temp\VMware.VimAutomation.Logging.SoapInterceptor.dll")



############# Variable declaration and initialization##################################################
$ComputerName = "Put your VMware computername here"
$username = "domain\username"
$password = ConvertTo-SecureString -AsPlainText -Force "password"
$Credentials = New-Object System.Management.Automation.PSCredential ($username, $password)
$LocalDriveObjects =  @()
$capacityIncrease = 2
$Volume = "D:"

############################################Assemblies#############################################################
add-pssnapin VMware.VimAutomation.Core
add-pssnapin VMware.VimAutomation.Vds

##########################################################################################################


Function CreateEventLog()
{
$ApplicationEventLogSources = Get-ChildItem "HKLM:\SYSTEM\CurrentControlSet\Services\EventLog\Application"

if(!(($ApplicationEventLogSources | Select-Object "PSChildName") -match "DiskIncreaseScript"))
{
 New-EventLog -LogName Application -Source DiskIncreaseScript -ComputerName "localhost"

}

}


Function WriteEvent($message)
  {
      Write-EventLog -logname Application -computername "localhost" -Source DiskIncreaseScript -Eventid 65503 -Message $message
  }

Function Increase-Disk($HardDisk)
         {
            
            $CurrentCapacity = $HardDisk.CapacityGB
            $Capacity = $CurrentCapacity + $capacityIncrease
            WriteEvent "Current capacity on $Computername : $CurrentCapacity. This will be increased to $Capacity"
            Set-HardDisk -HardDisk $HardDisk -CapacityGB $Capacity -GuestCredential $Credentials -Confirm:$false
         }

Function Increase-volume($Computer)
         {
          
           WriteEvent "Increasing volumes on $Computer"
          
           Invoke-Command -ComputerName $Computer -scriptblock { 'list disk' | diskpart | ? {
  $_ -match 'disk (\d+)\s+online\s+\d+ .?b\s+\d+ [gm]b'
} | % {
  $disk = $matches[1]
  "select disk $disk", "list partition" | diskpart | ? {
    $_ -match 'partition (\d+)'
  } | % { $matches[1] } | % {
    "select disk $disk", "select partition $_", "extend" | diskpart | Out-Null
  }
}
}


          }


Function Get-LocalDisk($Computer)
{
$PDiskDrives = Get-WmiObject -Class Win32_DiskDrive -ComputerName $Computer

 foreach($PdiskDrive in $PDiskDrives)
  {

   $partitionquery = "ASSOCIATORS OF {Win32_DiskDrive.DeviceID='$($PdiskDrive.DeviceID)'} WHERE AssocClass = Win32_DiskDriveToDiskPartition"
   $Partitions = Get-WmiObject -Query $partitionquery -ComputerName $Computer
   #$Partitions
    foreach($Partition in $Partitions)
     {
     $Logicaldrivesquery = "ASSOCIATORS OF {Win32_DiskPartition.DeviceID='$($partition.DeviceID)'} WHERE AssocClass = Win32_LogicalDiskToPartition"
     $LogicalDrives =  Get-WmiObject -Query $Logicaldrivesquery -ComputerName $Computer
 
    
      foreach($LogicalDrive in $LogicalDrives)
        {
          
       
        $obj = New-Object -Type PSCustomObject -Property @{
        Disk        = $PdiskDrive.DeviceID
        DiskSize    = $PdiskDrive.Size
        DiskModel   = $PdiskDrive.Model
        Partition   = $partition.Name
        RawSize     = $partition.Size
        DriveLetter = $LogicalDrive.DeviceID
        VolumeName  = $LogicalDrive.VolumeName
        Size        = $LogicalDrive.Size
        FreeSpace   = $LogicalDrive.FreeSpace
        SerialNumber = $PdiskDrive.SerialNumber
                                                           }

        $LocalDriveObjects = $LocalDriveObjects + $obj
        }
     }
}
        
return $LocalDriveObjects
}

##################### Main Script######################################################
Connect-VIServer "VcenterServerName" -Credential $Credentials
$LocalDisks = Get-LocalDisk $Computername
$vmHardDisks = Get-VM -Name $ComputerName | Get-HardDisk 
$vmDatacenterView = Get-VM -Name $ComputerName | Get-Datacenter | Get-View 
$virtualDiskManager = Get-View -Id VirtualDiskManager-virtualDiskManager

CreateEventLog

foreach($DObject in $LocalDisks)
 {
  if($DObject.DriveLetter -eq $Volume)
     {
      WriteEvent  "Checking driveletter $($DObject.Driveletter) on $ComputerName"
      foreach($vmHardDisk in $vmHardDisks)
              {
              $vmHardDiskUuid = $virtualDiskManager.queryvirtualdiskuuid($vmHardDisk.Filename, $vmDatacenterView.MoRef) | foreach {$_.replace(' ','').replace('-','')}
             
              if($DObject.SerialNumber -eq $vmHardDiskUuid)
                {
                 WriteEvent "Found a match $vmHardDiskUuid $($DObject.SerialNumber) $($vmHardDisk.Name) on $Computername"
                 WriteEvent "Disk Object: $DObject"
                 Increase-Disk $vmHardDisk
                 Start-Sleep -Seconds 10
                
                
                }
              }
     }
 }

Start-Sleep -Seconds 120

Increase-volume $Computername

When was your server rebooted last

Use this command in windows cmd to get the last time your server booted up or was rebooted.
C:\>systeminfo | findstr /i boot
System Boot Time: 10/5/2016, 1:13:08 PM
Boot Device: \Device\HarddiskVolume2
As to who rebooted it ;). You can search the system event log for events with id 1074.