Chapter 9. MetroCluster expansion cabling 131The FibreBridge has the following environmental specifications: Power consumption is 55W: 110V, 0.5A/220V, 0.25A Input 85-264 VAC, 1A, 47-63 Hz BTU: 205 BTU/hr Weight: 8.75 lbsThe FibreBridge has the following operating environment specifications: Temperature: 5° - 40° C at 10,000 feet Humidity: 10 - 90% Thermal monitoring possible Front-to-rear coolingThe following monitoring options for the device are available: Event Management System (EMS) messages and Autosupport messages Data ONTAP commands, such as storage show bridge –v FibreBridge commands, such as DumpConfigurationThe FibreBridge does not support SNMP in the DOT 8.1 release.9.2 Stretch MetroCluster with SAS shelves and SAS cablesSAS optical cables can be used to cable SAS disk shelves in a stretch MetroCluster systemto achieve greater distance connectivity. A stretch MetroCluster system can be a new systeminstallation, an existing system that is cabled with SAS cables (not by using FibreBridge6500N bridges) for which you are replacing SAS cables or hot-adding a SAS disk shelf, or anexisting system for which you are replacing SAS copper cables and FibreBridge 6500Nbridges.9.2.1 Before you beginThe following overall requirements must be met before any procedures in this document arecomplete: Your system platform, disk shelves, and version of Data ONTAP that your system isrunning must support SAS optical cables. The most current support information can befound at the following IBM N series support site:http://www.ibm.com/support/docview.wss?uid=ssg1S7003897 SAS optical multimode QSFP-to-QSFP cables can be used for controller-to-shelf andshelf-to-shelf connections, and are available in lengths up to 50 meters.If you are using SAS optical multimode MPO cables with MPO QSFP modules, thefollowing parameters apply:– You can use these cables for controller-to-shelf and shelf-to-shelf connections.– The length of a single cable cannot exceed 150 meters for OM4 and 100 meters forOM3.– The total end-to-end path (sum of point-to-point paths from the controller to the lastshelf) cannot exceed 510 meters.– The total path includes the set of breakout cables, patch panels, and inter-panelcables.
