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

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

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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

vSphere PowerCLI 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-Csv C:\Scripts\Hosts.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:\Scripts\Bios.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