vmkfstools command not found

[Beckyboo]

Hi all, I am new here so apologies if I am in the wrong place.

I have an issue with a VM which will not start up. Its giving me this message:

My searches took me to this post ESXi Virtual Machine fails to power on with error "Object type requires hosted I/O"

So I have logged into my ESXi host via SSH and attempted to run

"vmkfstools -x check /vmfs/volumes/5a5f66ea-3ccd51ea-af77-308d99634a88/myserver/myserver_1.vmdk"

But now all I get is Unknown command: `vmkfstools' Can anyone point me in the right direction please?

[Duncan Epping]

I can't reach my lab right now, but it should be under /sbin/ .

EDIT: Yeah just looked at my lab, indeed it is under /sbin/