At this page you will find all tips and tricks gathered on the internet. When you are missing something please leave a comment (at the bottom) and I will make sure it is added.
Useful links :
Tielen Consultancy : https://www.tielenconsultancy.nl (For official Nutanix trainings and Nutanix cluster rental to use for trainings, tests, lab, learning).
Nutanix Community Forums : https://next.nutanix.com
Nutanix NTCs Blogroll: https://www.jeroentielen.nl/ntc-blogroll/
Register your account for Nutanix CE : https://www.nutanix.com/products/community-edition/register (wait for email with the confirmation)
Make sure you can login to : https://next.nutanix.com
Download latest CE : https://next.nutanix.com/discussion-forum-14/download-community-edition-38417
Hardware Requirements : https://portal.nutanix.com/page/documents/details?targetId=Nutanix-Community-Edition-Getting-Started-v2_1:top-sysreqs-ce-r.html
Community driven HCL: https://github.com/smzksts/NutanixCE-Community-HCL
Please participate 😉
Check correct account permissions from CVM :
curl -u ‘username:password’ https://my.nutanix.com/api/v1/users/me
Realtek r8169 fix:
Issue : Firstboot script will fail.
Fix : Login with root nutanix/4u on AHV and execute:
- dracut -f –add-drivers realtek /boot/initramfs-$(uname -r).img
- rm /root/.firstboot_fail
- touch /root/.firstboot
- reboot
- This will load the Realtek module and the firstboot script will be triggered again.
NVMe issues : https://next.nutanix.com/discussion-forum-14/issue-with-ce-2-1-nvme-drive-detection-post-installation-43887
Make sure NVMe drives for CVM and DATA are not in the same IOMMU group: find /sys/kernel/iommu_groups/ -type l
Use VLANs? Run crashcart: https://www.jeroentielen.nl/the-nutanix-network-crashcart-a-hidden-gem
It is easier to add the CVM and AHV in a VLAN before creating the cluster by running the crashcart.
Nested VMWare : https://www.jeroentielen.nl/installing-nutanix-community-edition-ce-on-vmware-esxi-vsphere
One of the best posts om my blog and the one which works all the time. Updated regularly. Use this guide when installing CE nested on vmware vsphere.
Create bootable installation media : https://rufus.ie (Use older version then 4.9)
Break and restart the Installer :
- Break : CTRL-C
- Restart : ./ce_installer && screen -r
SSD Detected as HDD :
- Break the installer
- echo 0 > /sys/block/sd#/queue/rotational
- Restart installer
- https://next.nutanix.com/discussion-forum-14/ssd-detected-as-hdd-even-though-rotational-is-0-40367?tid=40367&fid=14
Worn out USB : (If installing AHV on USB drive. The AHV installation will time out. Always use a fresh/new USB drive for this)
- Test with : dd if=/dev/sd# of=/dev/null bs=1M count=50
- Increase AHV timeout timer
- Break Installer
- Edit : /root/phoenix/imaging_helper/installer_vm.py
- Jump to line 31
- Increase : kvm=20260
- Save
- Restart installer
Changing CVM memory : https://www.jeroentielen.nl/change-nutanix-community-edition-cvm-memory
Creating the cluster :
- Redundacy Factor 1 (Single node cluster) : cluster –s <cvm_ip> –redundancy_factor=1 create
- Replication Factor 2 on single node cluster (2x CVM and 2x Data Disks on single node cluster) : cluster –s <cvm_ip> create
- Redundacy Factor 2 (3 node cluster) : cluster –s <cvm_ip1>,<cvm_ip2>,<cvm_ip3> create
Check current set DNS Servers : ncli cluster get-name-servers
Add DNS Server : ncli cluster add-to-name-servers servers=<dns_server>
Remove incorrect DNS Server : ncli cluster remove-from-name-servers servers=<dns_server>
Workaround for AHV 10: (Virtual machines will not start on consumer grade CPU’s when running AHV 10):
https://github.com/ktelep/NTNX_Scripts/tree/main/CE/ahv10_commercial_workaround