Top 10 Nutanix System Administrator Commands

Nutanix Top 10 system administrator commands to mange Nutanix AOS, AHV cluster through Nutanix acli, ncli, ipmi commands [..] Read more

Nutanix Top 10 Commands

Organizations are adopting Nutanix and growing their business because they are only focused on their business not on IT-infra. IT-infra is taking care by the Nutanix to manage the Nutanix cluster infra from prism is very easy as child cake so enjoy Nutanix.

Nutanix Top 10 Commands

Lets focus on Nutanix top 10 system administrator commands those are very very essential and mostly use by a Nutanx Administrator.

Command 1 – Build a new nutanix cluster with at least 3 nodes

If you are planning to create new nutanix cluster required at least three nodes for RF-2 cluster – Make sure that all the CVMs, Nodes and IPMI IP addresses are reachable or ping able to each other.

Issue following commands of any controller VM (CVM)

cvm$> cluster -s cvm1_ip_addr,cvm2_ip_addr,cvm3_ip_addr create

Exanpme cluster -s 192.168.10.1,192.168.10.2,192.168.10.3 create
Note: Each CVM IP adddress separeted by comma (,) without space

OR can do same thing to add extra prefix parameters in above command

cvm$> cluster –cluster_name= --cluster_external_ip= --dns_servers= --ntp_servers= --redundancy_factor=2 -s cvm1_IP_addr,cvm2_IP_addr,cvm3_IP_addr, So on..  create

Note: –redundancy_factor parameter has to values 2 and 3
To use –redundancy_factor 2 need at least 3 nodes for build the nutanix cluster, RF-2 keeps one additional copy of master data, if one nodes goes down or in maintenance mode no impact on nutanix cluster

To use –redundancy_factor 3 need atleast 5 nodes for build the nutanix cluster, RF-3 keeps two additional copy of master data, if two nodes goes down or in maintenance mode no impact on nutanix cluster

Command 2 – Start & Stop Nutanix cluster

Planning for any hardware maintenance or relocation of the nutanix nodes need to stop the nutanix cluster for sometime and start again to begin production

To Start Nutanix cluster following command
cvm$ cluster start
To Stop Nutanix cluster following command
cvm$ cluster stop

See nutanix start and stop cluster detailed procedure in refer post link https://hyperhci.com/2019/04/21/how-to-shutdown-nutanix-ahv-cluster-and-start-again/

Command 3 – Show Nutanix cluster status and running services

Want to know nutanix cluster and running services status, Issue following command from any CVM

cvm$ cluster status

Command 4 – Set timezone on Nutanix running cluster

It is very important to set timezone after built Nutanix cluster as your country

cvm$ ncli cluster set-timezone timezone=choose_timezone

Example cvm$ ncli cluster set-timezone timezone=Asia/Kolkata or America/Los_Angeles etc. See worldwide timezone list here https://raw.githubusercontent.com/maxmind/geoip-api-c/master/timezone/timezone.txt

Command 5 – Run Nutanix cluster health check

Need to check nutanix running cluster health status to verify the nutanix health report via email and text document issue following command from any CVM

cvm$ ncc health_checks run_all

Command 6 – Check Nutanix controller VM (CVM), Hypervisor and IPMI IP Address

To check Nutanix controller VM (CVM) IP addressees on nutanix cluster

cvm$ svmips
To check Hypervisor IP addresses on nutanix cluster
cvm$ hostips
To check IPMI IP addresses on nutanix cluster
cvm$ ipmiips

Command 7 – Check Nutanix AOS and Hypervisor upgrade progress / status

If want to check upgrade progress through command line and what is going on in back end, hit following command from any CVM

To show AOS upgrade progress/status
cvm$ upgrade_status
To show Hypervisor upgrade progress/status
cvm$> host_upgrade status

Command 8 – Check / Get Nutanix AOS & AHV version

Get it through command line ( Through Prism web console GUI refer.. https://hyperhci.com/2019/04/22/check-nutanix-cluster-aos-ahv-ncc-version-from-prism/ )

To show AOS version issue following command
cvm$ cat /etc/nutanix/release_version                #Run on particular node
cvm$ allssh cat /etc/nutanix/release_version    #Run on entire cluster for all node's CVM
To show AHV version on particular node issue following command
AHV_Host# cat /etc/nutanix-release #Run on particular AHV node/host
To show entire cluster AHV version run following command on any CVM of the nutanix cluster
cvmt$ hostssh cat /etc/nutanix-release

Command 9 – Get Nutanix cluster information

Get Nutanix cluster information like cluster name, cluster UUID, cluster IP address and timezone etc run below command from any CVM

cvm$ ncli cluster info

This is last but not the least command from “nutanix commands pitara”.

Command 10 – Know your Nutanix node’s hardware specification

Get Nutanix node hardware specification like Memory, CPU, Network card, Power supply units, Storage info (HDD,SSD) etc. go through mentioned command

cvm$ allssh ncc hardware_info show_hardware_info

I hope you will rock with above commands and feel special learning experience.

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