Power Cli Workshop London Vmug

PowerCLI Workshop London VMUG
Jonathan Medd

Je ne suis pas Alan Renouf
Today’s theme is simple and practical examples to improve the management of your VMware Infrastructure
What’s New?
Reporting
Useful One-Liners / Short Scripts
Project Onyx
VESI

Buy this book
Two ebook copies to give away to those who ask / answer questions

You should also get this
Practical PowerCLI examples side-by-side vSphere topics

PowerCLI 4.0 U1 is out!
More than 60 new cmdlets since the last release earlier this year
Cmdlet reference is now online - http://bit.ly/6Cx1s7
vSpherePowerCLI Administration Guide http://bit.ly/08iWLQK
Virtu-Al’s summary of the new cmdlets http://bit.ly/8KMGdg

A few of the new cmdlets
Set-PowerCLIConfiguration -DefaultServerMode multiple
Stop-VMHost Server01 -Confirm (or –whatif) ;-)
Set-HardDisk -HardDisk $hd -CapacityKB $extendedCapacity -HostCredential $ hostCred -GuestCredential $guestCred

PowerShell 2.0 is out!
More than 100 new cmdlets since v1.0
Installed by default in Windows 7 / Server 2008 R2
New features: Remoting, Advanced Functions, Background Jobs, ISE

vCheck (Daily Report)
Schedule this report to run every day in your environment
Have a person dedicated to working through highlighted issues each day – if possible rotate between team members, say weekly
http://bit.ly/24KTGe

vCheck

vCheck – New in V3

vCheck Examples - Snapshots
Do you know every old Snapshot you have?
Hassle the Snapshot Creator
Manage those which are required to be kept

vCheck Examples – Too Many CPU’s
Weren’t aware of these until they turned up in the daily report
Could potentially cause some unnecessary high CPU %RDY times
All now down to 2 x vCPU

vCheck Examples – VM’s on Local Storage
Often created ‘temporarily’ whilst waiting for SAN space. Still there months later.
Could effect host maintenance since can’t be VMotioned

Find Host Version and Build
Get-VMHost | Get-View | Select-Object Name, @{N="Version";E={$_.config.product.version}}, @{N="Build";E={$_.config.product.build}} | Sort-Object Name | Export-CsvC:ScriptsHosts.csv -NoTypeInformation
Demo: Get-View Exploring

Who’s seen one of these?
Or three in one month? Three different servers, same model, same ESX version, same CPU error

Find Vendor, Model and Bios
Get-VMHost | Get-View | Select-Object Name, @{N="Vendor";E={$_.summary.hardware.vendor}}, @{N="Model";E={$_.summary.hardware.model}}, @{N="Bios Version";E={$_.hardware.biosinfo.biosversion}}, @{N="Release Date";E={$_.hardware.biosinfo.releasedate}} | Sort-Object Name | Export-Csv C:ScriptsBios.csv -NoTypeInformation
Note: Some vendors don’t seem to be populating this information for all models

SVMotion
Moved entire production infrastructure between SAN’s in different data centres with no downtime simply by scheduling these commands
Get-VM Server01 | Move-VM –Datastore (Get-DataStore Datastore10)
Combine with Import-CSV to make it even easier for large batches
Watch out for VM’s with multiple disks in different datastores if you have multiple target datastores

Slot Size
What are ESX Slot Sizes?
‘Prevent VMs from being powered on if they violate availability constraints’
Cluster with seemingly plenty of capacity won’t power on VM’s.
Watch out for ‘expensive’ VM’s with CPU or Memory reservations, and / or vSMP

Slot Size Code

Project Onyx from PowerCLI team
Currently in Alpha
Think Macro Recorder for Excel
Best for automating things that can’t be automated using native PowerCLI cmdlets
Beats having to read the API documentation
Project Onyx Demo

The VESI
Offshoot from Quest PowerGUI tool
PowerShell scripts bundled up into a GUI interface
Great for beginners to use PowerShell scripts before getting to grips with writing your own
Great for more advanced scripters wishing to share code
VESI Demo

Resources
http://blogs.vmware.com/vipowershell/
http://www.virtu-al.net/
http://lucd.info/
PowerCLI community forum http://bit.ly/6BwTUS

Power Cli Workshop London Vmug

by jonathanmedd on Nov 25, 2009

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