IBM N Series, Hardware Manual

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Chapter 9. MetroCluster expansion cabling
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The 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 lbs
The FibreBridge has the following operating environment specifications:
򐂰 Temperature: 5° - 40° C at 10,000 feet
򐂰 Humidity: 10 - 90%
򐂰 Thermal monitoring possible
򐂰 Front-to-rear cooling
The 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 DumpConfiguration
The FibreBridge does not support SNMP in the DOT 8.1 release.
9.2 Stretch MetroCluster with SAS shelves and SAS cables
SAS optical cables can be used to cable SAS disk shelves in a stretch MetroCluster system
to achieve greater distance connectivity. A stretch MetroCluster system can be a new system
installation, an existing system that is cabled with SAS cables (not by using FibreBridge
6500N bridges) for which you are replacing SAS cables or hot-adding a SAS disk shelf, or an
existing system for which you are replacing SAS copper cables and FibreBridge 6500N
bridges.
9.2.1 Before you begin
The following overall requirements must be met before any procedures in this document are
complete:
򐂰
Your system platform, disk shelves, and version of Data ONTAP that your system is
running must support SAS optical cables. The most current support information can be
found 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 and
shelf-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, the
following 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 for
OM3.
– The total end-to-end path (sum of point-to-point paths from the controller to the last
shelf) cannot exceed 510 meters.
– The total path includes the set of breakout cables, patch panels, and inter-panel
cables.