When mentioning a tool from Data Center Infrastructure Management (DCIM), http://opendcim.org/, I would recommend to have a look at openDCIM. It seems to me far easier to use than RackTables. You can try the tool online via http://opendcim.org/demo.html. Documentation is unfortunately not the strongest point of this open source project but the email list is very reactive.
When mentioning a tool from Data Center Infrastructure Management (DCIM), http://opendcim.org/, I would recommend to have a look at openDCIM. It seems to me far easier to use than RackTables. You can try the tool online via http://opendcim.org/demo.html. Documentation is unfortunately not the strongest point of this open source project but the email list is very reactive.