https://community.extremenetworks.com/t5/data-center-vdx/chassis-fan-airflow-direction/m-p/64883#M309 This command is a local command to the switch instead of a VCS command (via RB option). So, it needs to be done per switch. Tue, 26 Oct 2021 09:16:22 GMT Truyen_Phan 2021-10-26T09:16:22Z https://community.extremenetworks.com/t5/data-center-vdx/chassis-fan-airflow-direction/m-p/64882#M308 Hi all,<BR /><BR />I'm going to be swapping out power supplies and fans in a VDX VCS cluster, and as part of the change is to run the command <STRONG># chassis fan airflow-direction</STRONG>. I've looked at the documentation and also on the CLI but there doesn't seem to be an option to apply direct to a switch via the RB option. <BR /><BR />So my question is when you run this command is it applied to all switches in a VCS cluster at once or a switch at a time? What is the result of applying this command? I do understand the switch needs to be reloaded as part of the process. Tue, 26 Oct 2021 02:44:50 GMT https://community.extremenetworks.com/t5/data-center-vdx/chassis-fan-airflow-direction/m-p/64882#M308 Russ 2021-10-26T02:44:50Z https://community.extremenetworks.com/t5/data-center-vdx/chassis-fan-airflow-direction/m-p/64883#M309 This command is a local command to the switch instead of a VCS command (via RB option). So, it needs to be done per switch. Tue, 26 Oct 2021 09:16:22 GMT https://community.extremenetworks.com/t5/data-center-vdx/chassis-fan-airflow-direction/m-p/64883#M309 Truyen_Phan 2021-10-26T09:16:22Z https://community.extremenetworks.com/t5/data-center-vdx/chassis-fan-airflow-direction/m-p/64884#M310 Thanks Truyen Wed, 27 Oct 2021 01:54:14 GMT https://community.extremenetworks.com/t5/data-center-vdx/chassis-fan-airflow-direction/m-p/64884#M310 Russ 2021-10-27T01:54:14Z