Reading Time: 4 minutesHow to use iperf on ESXi host in an article that explains how to use iperf to test network performance on an ESXi host. Basically, what is iperf/iperf3? Based on the website https://iperf.fr/, iPerf3 is a tool for active measurements of the maximum achievable bandwidth on IP networks. It supports tuning various parameters related to…
Reading Time: 3 minutesConfiguring NSX Manager Virtual IP is an article that explains how to configure the Virtual IP (VIP) on NSX Manager for redundancy purposes. If you are interested to know more about NSX-T, we wrote an article that introduces the NSX-T Data Center. Click here to read the article. Also, we wrote an article that explains…
Reading Time: 2 minutesIncreasing the heartbeat timeout in vCenter is an article that explains how to set up a new timeout value in the vCenter Server’s advanced configurations. Before we get started, we have an article that explains how to debug the heartbeat communication between vCenter and ESXi host. Click HERE to read this article. As a normal…
Reading Time: 7 minutesSome useful esxcli network commands is an article that shows some useful esxcli network commands that help the administrator in day-to-day life. So, before we start, I would like to share a command reference (guide) related to the ESXi command. In this guide, we can find a lot of esxcli commands, syntax, etc:https://developer.vmware.com/docs/11743/esxi-7-0-esxcli-command-reference Firstly, the…
Reading Time: 5 minutesExplaining vSAN’s Free Capacity is an article that explains some important points about vSAN’s free space recommendation to maintain your vSAN cluster healthy. What is vSAN Slack Space? vSAN Slack Space is a free space or a free area in the vSAN Datastore reserved for vSAN’s internal operations such as host maintenance mode data evacuation,…
Reading Time: 3 minutesDebugging vCenter and ESXi Heartbeat is an article that explains how to debug the ESXi heartbeat communication with the vCenter Server. We will use the tool “tcpdump” to help us in this troubleshooting. The ESXi host (vpxa) sends UDP heartbeats packets to the vCenter Server (vpxd) every 10 seconds. This traffic uses UDP port 902….