HP Onboard Administrator - Manual (Page 260)

Configuring the HP BladeSystem c7000 enclosure and enclosure devices 260
Fans and cooling management
Fan zones
Fan zones monitor the bay cooling efficiency and the status of the bays the fans are configured to cool. Zone
speeds reported are targeted speeds. These values change with time as the fans speed and slow in response
to cooling needs of the zone. The Fan Zones screen does not dynamically update. To update information on
this screen, click Refresh.
Fan speeds appear in percentage of total capacity, and fans operating in a zone without any blades run at
a minimum RPM of 30% to maintain proper cooling for the entire enclosure.
Column Description
Thermal Zone The four cooling zones in the enclosure: top left, top right, bottom left and bottom right
Zone Speed
The computed fan speed required based on the highest device need in the zone.
Device Bays The number of the device bays in a particular thermal zone.
Fan Bay The fan bay number. Fans in bays 3 and 8 are shared between thermal zones.
Fan Status The overall status of each fan. Possible values are Unknown, OK, Degraded, Failed,
and Absent.