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PowerCLI Workshop London VMUG

Jonathan Medd. PowerCLI Workshop London VMUG. 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.

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PowerCLI Workshop London VMUG

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  1. Jonathan Medd PowerCLI Workshop London VMUG

  2. 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

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

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

  5. 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

  6. 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

  7. 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

  8. 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

  9. vCheck

  10. vCheck – New in V3

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

  12. 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

  13. 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

  14. 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:\Scripts\Hosts.csv -NoTypeInformation Demo: Get-View Exploring

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

  16. 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

  17. 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

  18. 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

  19. Slot Size Code

  20. 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

  21. 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

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

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