Anecdote by
Nutanix users and administrator are often required to access the CVMs, Hypervisors and IPMIs through their IP addresses. The most commonly used method to look at the IP addresses of these three entities is through Prism Element, and going through the Hardware tabs. However, looking through the GUI can be time consuming since you are required to click on every Host to view the IP address details of all three components. It’s all the more cumbersome if you have a huge infrastructure, like say 24 Hosts. It would be ideal if there is an easier process to list all these pieces of vital information.
I happen to use the following combination of characters to list all these three pieces of data, and needless to say the customers are delighted when they see me run this command:
| nutanix@NTNX-7B43JB2-A-CVM:10.171.154.127:~$ nutanix@NTNX-7B43JB2-A-CVM:10.171.154.127:~$ echo; set `ncli host list | grep Address | sed 's/^.*: //'`;echo -e " IPMI\t CVM\t\tHypervisor";echo -e " ---- --- ----------";c=0;for f in $@;do echo -ne "$f\t";((c = c + 1));if [ $((c%3)) -eq 0 ];then echo;fi;done; echo; echo IPMI CVM Hypervisor ---- --- ---------- 10.171.154.113 10.171.154.112 10.171.154.111 10.171.154.116 10.171.154.115 10.171.154.114 10.171.154.119 10.171.154.118 10.171.154.117 10.171.154.122 10.171.154.121 10.171.154.120 10.171.154.125 10.171.154.124 10.171.154.123 10.171.154.128 10.171.154.127 10.171.154.126 10.171.154.131 10.171.154.130 10.171.154.129 10.171.154.134 10.171.154.133 10.171.154.132 10.171.154.137 10.171.154.136 10.171.154.135 10.171.154.140 10.171.154.139 10.171.154.138 10.171.154.143 10.171.154.142 10.171.154.141 10.171.154.146 10.171.154.145 10.171.154.144 10.171.154.149 10.171.154.148 10.171.154.147 10.171.154.152 10.171.154.151 10.171.154.150 10.171.154.155 10.171.154.154 10.171.154.153 10.171.154.158 10.171.154.157 10.171.154.156 10.171.154.161 10.171.154.160 10.171.154.159 10.171.154.164 10.171.154.163 10.171.154.162 10.171.154.167 10.171.154.166 10.171.154.165 10.171.154.170 10.171.154.169 10.171.154.168 nutanix@NTNX-7B43JB2-A-CVM:10.171.154.127:~$ nutanix@NTNX-7B43JB2-A-CVM:10.171.154.127:~$ |
The above command essentially parses through the often used $ncli host list command output, handpicks the IP addresses from each Host and lists them as shown above. This comes in especially handy when a customer is working with a Nutanix Technical Support engineer and they are trying to figure out the individual pieces of a Host while doing a hardware replacement like DIMM, or if they are trying to submit a report to the upper Management on the resources being used.
Hope you get this command the next time you work at the CLI on your Nutanix cluster infrastructure.