Previous Post mentioned in PowerScripting Podcast - Episode 30

The fine folks that bring us the PowerScripting Podcast (a must listen!), have included a previous post (DNS/WINS IP changes) in their 30th episode. I am honored!

ASPNet_WP.exe analysis on multiple servers via PowerGadgets

Was recently asked if I could help our development team analyze the ASPNet_WP process on 3 web servers. These 3 servers are load balanced and deliver the same content (FRS). There has been some spikes in the process and they wanted to be able to see this graphically. PowerGadgets to the rescue!

Steps are:

- Grabs an encrypted password (see previous post) as I am going across domains.
- Get WorkingSizeSet of the ASPNet_WP on the servers via WMI

- Store the WorkingSizeSet in a csv file (DB soon!)

- Grab the CSV file an pipe it to Out-Chart (PowerGadgets)

- Create a bat file that calls PowerShell with the appropriate ps1 file

(powershell.exe -nologo -command "& {c:\productionscripts\get-aspnet_wp1.ps1})

- Schedule the bat file

Please forgive the lack of pipes in this post. I am struggling to find a blog that handles code nicely.

###################################################
# Script Name: Get-ASPNet_WP.ps1
# Description: PowerShell Script for ASPNet_WP
# analysis on intapp-p2, webster-vp01
# and webster-vp02
#
# Created By: Wes Stahler
# Date Created: 6/25/2008
# Change Log:
# 6/26/2008 Added PowerGadget chart for
# inclusion on admin web page
###################################################

# Get password from encrypted file
# Once these servers are moved into the correct domain
# we won't have to worry about the creds....
$password = Get-Content c:\cred.txt ConvertTo-SecureString

# Create credentials
$creds = New-Object -typename System.Management.Automation.PSCredential `
-argumentlist "nt3osumc\stah06",$password

# Get WorkingSetSize for the 3 NT3OSUMC servers
$intapp_p2 = Get-WmiObject -Class Win32_Process `
-ComputerName intapp-p2 -Credential $creds `
Where-Object {$_.ProcessName -eq "aspnet_wp.exe"} `
Sort-Object WorkingSetSize -Descending `
Select-Object -First 1

$webster_vp01= Get-WmiObject -Class Win32_Process `
-ComputerName webster-vp01 -Credential $creds `
Where-Object {$_.ProcessName -eq "aspnet_wp.exe"} `
Sort-Object WorkingSetSize -Descending `
Select-Object -First 1

$webster_vp02= Get-WmiObject -Class Win32_Process `
-ComputerName webster-vp02 -Credential $creds `
Where-Object {$_.ProcessName -eq "aspnet_wp.exe"} `
Sort-Object WorkingSetSize -Descending `
Select-Object -First 1

# Being lazy....
$intappp2 = [math]::Round($intapp_p2.workingsetsize/1024/1024,0)
$webstervp01 = [math]::Round($webster_vp01.workingsetsize/1024/1024,0)
$webstervp02 = [math]::Round($webster_vp02.workingsetsize/1024/1024,0)
$dt = Get-Date -Format T

# Format string for to append to the historical file
# Will add to a DB later
$str = "{0},{1},{2},{3}" -f $dt,$intappp2,$webstervp01,$webstervp02

# Append to file
Add-Content -Path "c:\ProductionScripts\ASPNet_WP.csv" -Value $str

# Grab the data (last 7 hours worth) and chart!
$b = Import-Csv "c:\ProductionScripts\ASPNet_WP.csv" select -last 28
$b Out-Chart -Values Intapp-p2, webster-vp01, Webster-vp02 `
-Label Time `
-Title "ASPNet_WP.exe as of $dt" `
-gallery Lines `
-AxisY_Max 1000 `
-Size 800,533 `
-Series_1_AxisY AxesY_0 `
-Series_2_AxisY AxesY_0 `
-Output "file://intapp-p2/e$/Inetpub/Extranet/ProjectManager/Exception/ASPNet_WP.png"
###################################################

Awesome post - Powershell Tip - Storing and Using Password Credentials

Check out this posting from Rob Costello http://blogs.technet.com/robcost/archive/2008/05/01/powershell-tip-storing-and-using-password-credentials.aspx

This is very handy when you are dealing with multiple domains.

Was recently asked to retrieve hard drive (type=3) information from a supplied list of servers for backup planning.

Following is a script used to gather this information.
Now if I could only find a way to get the file count.....

function Get-DriveInventory
{
PROCESS
{
#get drives from WMI
$drives = gwmi win32_logicaldisk -comp $_ -filter "drivetype=3"
#construct output objects
foreach ($drive in $drives)
{
$obj = New-Object psobject
$obj  Add-Member NoteProperty ComputerName $_
$obj  Add-Member NoteProperty DriveLetter $drive.deviceid
$obj  Add-Member NoteProperty VolumeName $drive.VolumeName
$free = $drive.freespace/1MB -as [int]
$obj  Add-Member NoteProperty AvailableSpace $free
$total = $drive.size/1MB -as [int]
$obj  Add-Member NoteProperty TotalSpace $total
Write-Output $obj
}
}
}

function Get-FileName
{
$computer = Read-Host "Filename of computer names?"
return $computer
}
# get the filename
$f = Get-FileName
Get-Content $f  Get-DriveInventory  Export-Csv "C:\Users\Public\Documents\DriveInventory.csv"

Vista SP1 and PowerShell Commands for Active Directory by Quest Software

I recently made the move on one of my workstations to Vista with no real issues. Everything PowerShell related worked fine. I later decided to go ahead and install Vista SP1. After installation, things seemed to work fine until I tried to use the AD tools from Quest. The ActiveRoles management shell would not even load. After a bit of fruitless research, I uninstalled PowerShell and associated addins and reinstalled. This fixed the issue. Not sure what SP1 did, but a reinstall was the only thing that got me back up and running AD commands.

Change DNS/WINS IP on Multiple Servers

I was recently asked if I could change the DNS & WINS IP address on multiple servers via script. PowerShell to the rescue! After a brief search, I found a great post. Following is my implementation.

function Set-DNSWINS {
#Get NICS via WMI
$NICs = Get-WmiObject '
-Class Win32_NetworkAdapterConfiguration '
-ComputerName $_ '
-Filter "IPEnabled=TRUE"

foreach($NIC in $NICs) {
$DNSServers = "12.34.5.67","76.54.3.21"
$NIC.SetDNSServerSearchOrder($DNSServers)
$NIC.SetDynamicDNSRegistration("TRUE")
$NIC.SetWINSServer("12.345.67.890", "12.345.67.891")
}
}

function Get-FileName {
$computer = Read-Host "Filename of computer names?"
return $computer
}

$f = Get-FileName
Get-Content $f foreach {Set-DNSWINS}

Gotta love PowerShell!

TechEd 2008

Spent most of last week in sunny Orlando attending TechEd 2008. It was a great conference for those interested in PowerShell. There were plenty of scripting sessions to attend. Even more importantly, I had the pleasure of meeting some of the people responsible for generating the excitement around PowerShell. Specifically, Jeffery Snover (Microsoft) and Hal Rottenberg (the man responsible for filling my iPod) - check out http://powerscripting.wordpress.com/.

Lots of swag was distributed, including PowerGadgets, you gotta take a look at this cool product!