PowerCLI Scripting to set Queue Full Threshold and Queue Full Sample Size
If you've ever dug into the guts of an ESXi host configuration, you've probably found that there are some settings that you just can't configure without the command line. An example that I came across recently was for a customer with 3Par storage. As per the VMware and 3Par Best Practices Guide , you should configure 3 settings on a per LUN basis: the Multipathing Policy, the Queue Full Threshold and the Queue Full Sample Size. The Multipathing Policy is easy to set through the GUI, at least if you really like clicking your mouse. The Queue Full settings don't exist in the GUI though; to get at them, you must use the command line. The 3Par guide helpfully provides the ESXCLI command that you need in order to configure those LUNs: esxcli storage core device set --device <canonical name> --queue-full-sample-size 32 --queue-full-threshold 4 So, just run that command on every LUN, from the command line on every Host in your environment. Yeah, ri...