Upgrade Nutanix Acropolis Hypervisor aka AHV

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Nutanix has its own hypervisor called Acropolis Hypervisor aka AHV. Nutanix Acropolis Hypervisor is highly customized, Linux based KVM, running on Linux CentOS 6.5. AHV is a integrated part of Nutanix Xtreme Compute platform – more about Nutanix XCP you read here – Nutanix XCP.

As every hypervisor, AHV needs to be updated or upgraded, from time to time. Upgrade process of Nutanix Acropolis Hypervisor is extremely simple and painless. Whole process is transparent for guest virtual machines (one of the many features of AHV is vMotion or LiveMigration – you name it). In upgrade process I will use well known (one of the best Nutanix Prism features) Nutanix OneClick Upgrade. Nutanix Oneclick upgrade supports upgrade for all three supported hypervisors,VMware ESXi, Microsoft Hyper-V and obliviously for Nutanix Operating System.

How to Upgrade Nutanix Acropolis Hypervisor.

  • Download AHV upgrade bits from Nutanix portal.
  • Log in to Nutanix Prism
  • From configuration menu (little gear icon) click on Update Software and choose hypervisor tab

AHV upload

  • Upload bits to Prism
  • Once done click Upgrade button

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  • You can either watch progress on Prism or , if you have some time, play 2048 game 🙂
  • Upgrade process takes around 15 – 20 minutes per host. Upgrade time might be longer if you have big host and many VMs on it.

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What is happening in background:

  • Upgrade process migrates all VMs out of host
  • Shut down CVM (Controller Virtual Machine)
  • Puts AHV host into maintenance mode
  • Install upgrade
  • Reboot host
  • Host upgrade verifies that the storage service come back up before moving to the next node.

That’s it, job done 🙂

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Artur Krzywdzinski

Artur is Consulting Architect at Nutanix. He has been using, designing and deploying VMware based solutions since 2005 and Microsoft since 2012. He specialize in designing and implementing private and hybrid cloud solution based on VMware and Microsoft software stacks, datacenter migrations and transformation, disaster avoidance. Artur holds VMware Certified Design Expert certification (VCDX #077).

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Jai

Hi,

When the VM will be failback to the original host? Before start the next node upgradation? Also please clarify that why the CVM is getting shutdown here?

Regards
Jai

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