Good virtual machines

Tips and Tricks for Creating Good VMs: It ’s Not as Easy as You’d Think! Greg Shields Partner and Principal Technologist Concentrated Technology www.ConcentratedTech.com

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30 Awesome Tiplets for Getting the Most Out of Your Virtual Machines Greg Shields Partner and Principal Technologist Concentrated Technology www.ConcentratedTech.com

#1: Purchase Compatible Hardware ,[object Object],[object Object],[object Object]

#2: Buy Nehalem/Opteron ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#3: Mind NIC Oversubscription ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#4: Consider Further Segregating Heavy Workloads ,[object Object],[object Object],[object Object]

#5: vSphere 4.0 VMs Don ’t Backup Applications Correctly! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#6: HBA Max Queue Depth ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#7: Consider Hardware iSCSI ,[object Object],[object Object],[object Object],[object Object],[object Object]

#7: Consider Hardware iSCSI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#8: Set NICs to Autonegotiate ,[object Object],[object Object],[object Object],[object Object]

#8: Set NICs to Autonegotiate ,[object Object],[object Object],[object Object],[object Object],[object Object]

#8: Set NICs to Autonegotiate ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#9: Do Not Team Storage NICs ,[object Object],[object Object]

#9: Do Not Team Storage NICs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#10: Enable Hyperthreading ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#11: Allocate Only the CPUs You Need ,[object Object],[object Object],[object Object],[object Object]

#11: Allocate Only the CPUs You Need ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#12: Disconnect Unused Physical Hardware Devices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#13: Upgrade to VM Version 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#14: Don ’t Fear Scaling Out ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#15: 80% is Nice ,[object Object],[object Object],[object Object],[object Object],[object Object]

#16: With Older OSs, Use UP HAL When Possible ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#17: Mind Scheduling Affinity ,[object Object],[object Object],[object Object],[object Object],[object Object]

#18: Don ’t Touch this Setting. ,[object Object],[object Object]

#18: Don ’t Touch this Setting. ,[object Object],[object Object],[object Object],[object Object]

#19: Don ’t Just Keep Up the Old (and Dumb) Habit of Assigning 4G of RAM to Every Stinking Virtual Machine, No Matter What Workload it Runs. Really. ,[object Object],[object Object],[object Object],[object Object]

#19: Don ’t Just Keep Up the Old (and Dumb) Habit of Assigning 4G of RAM to Every Stinking Virtual Machine, No Matter What Workload it Runs. Really. ,[object Object],[object Object],[object Object],[object Object],[object Object]

#20: Stop with the Snapshots ,[object Object],[object Object]

#20: Stop with the Snapshots ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#21: Perform vSphere Tasks in the Off Hours ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#22: Mind Affinities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#23: Disable Screen Savers ,[object Object],[object Object],[object Object],[object Object],[object Object]

#24: Use NTP, not VMware Tools for Time Sync ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#25: Never Use PerfMon Inside the VM, Except… ,[object Object],[object Object],[object Object],[object Object],[object Object]

#25: Never Use PerfMon Inside the VM, Except… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#26: Paravirtualization is Your Friend ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#27: Turn on Jumbo Frames, but Do it Everywhere ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#28: DRS Will Prioritize Faster Hosts over Slower Ones ,[object Object],[object Object],[object Object],[object Object]

#29: Disable FT, Unless You ’re Using It ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#30: Match Configured OS with Actual OS ,[object Object],[object Object],[object Object]

BONUS TIP #31: Follow the Numbers ,[object Object],[object Object]

Final Thoughts ,[object Object],[object Object],[object Object],[object Object]

Final Thoughts ,[object Object],[object Object],[object Object],[object Object],[object Object]

Tips and Tricks for Creating Good VMs: It ’s Not as Easy as You’d Think! Greg Shields Partner and Principal Technologist Concentrated Technology www.ConcentratedTech.com Please fill out evaluations, or no free beer for you ! !!!

Good virtual machines

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