How to set disk IOPS limit using govc?

[embano1]

Discussed in #2801

^{Originally posted by Heiko-san March 28, 2022}
Hi,

What I want to achieve is to set the IOPS limit for the disk of an existing vm.
I mean the setting that goes into vm's config as "sched.scsi0:0.throughputCap=xy", which you set in GUI by "edit settings" -> go to the disk -> "Limit IOPs" -> if you switch to "user defined" you can enter any number ...

• I found govc vm.disk.change but it seems I can only set disk size there.
• I see the disk using govc device.info -vm myvm disk-1000-0
• There is also a govc disk.ls, but it doesn't show anything

How can I set this limit?

Update:

• I found this, but doesn't seem to work either (even if it doesn't show any errors): govc vm.change -vm myvm -e sched.scsi0:0.throughputCap=123