Unable to Unmount Datastore from ESX Host
Currently in the middle of cleanup tasks after a SAN migration and this one pain-in-the-a** datastore would not unmount from one particular ESX host. Each attempt returned the following status: " Operation failed, diagnostics report: Sysinfo error on operation returned status : Busy. Please see the VMkernel log for detailed error information " Many posts/fixes where pointing towards a VM holding a connection to the datastore or HA being enabled on a cluster which accesses the particular datastore. None of which gave me any joy or further progress towards a solution. Having tried many ESXCLI commands to see which virtual machine was keeping a connection to this datastore and checking HA settings, I stumbled upon another option. SYSLOGS for the ESX hosts! In my scenario, this one ESX host (unlike the other 10+ hosts) was set up to push it's SYSLOGS to this particular datastore. No idea who set it, why they set it, when they set it or fo...