Nutanix AOS Upgrade Tips

January 20, 2019 at 1:30 pm Leave a comment

Recently we were upgrading our Nutanix Cluster which was running an AOS version 4.5.2.3 to the latest 5.9. The process was seamless and non interruptive. I have listed the commands we have used along with Nutanix Engineer during the process for future reference.

Initial Check prior to AOS Upgrade

ncli cluster info
ncli host ls
ncli ru ls
ncli ms ls
ncc –version
cluster status | grep -v UP
nodetool -h 0 ring | grep -i normal | wc -l
svmips | wc -w

Once the output of above checks are fine Use the Software Upgrade feature from PRISM to upgrade the AOS.

To check the upgrade / pre-upgrade status and on which node is being picked up.& Confirm the versions after upgrade

allssh ls -ltra ~/data/logs | grep -i preupgrade
tail -F ~/data/logs/preupgrade.out
use upgrade_status (to verify the status , less verbose mode)
ncli –version
stargate –version
watch -d genesis status (to check the services status after the CVM reboot)

Optional: To delete the previously uploaded ISO

cd ~/software_downloads/nos ( use it with allssh to run it on all the CVM’s)

Finally after AOS upgrade sometime the curator replication process and it takes some time to complete . Until it completes we cannot proceed with the other update , thus you could check via the below command;