Hello Centosuser,
This workingDir line is not in the .vmx by default thus why the kb article states "Add these lines to the .vmx configuration file of the virtual machine"
If you are wondering where your .vmx is currently residing then it is probably /vmfs/volumes/56fb3860-5c070484-4bad-6805ca40b402/DC/
(Unless you configured .vswp to non-default location - kb.vmware.com/kb/1004082)
Boot vmdk 0:0 is writing to wherever the .vmx is currently located (thus the absence of /vmfs/volumes/DatastoreName/VMName/ in the path).
vmdk mounted on SCSI0:1 (and by default all snapshots of this disk) are writing to /vmfs/volumes/56fb479c-62b92216-f691-6805ca40b402/DC/
Hope this helps.
Bob