TYAN TN70J-E3250, Руководство сервисного инженера, Страница: 62 / 76

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4.2.3 Smart Fan Speed Control
SES firmware also provides smart fan speed control that can control the fan speed
by the given status accordingly. In TN70J-E3250 storage system, there are 2 (in
standard shipment) +2 (as optional fan) system fans for the temperature control. Fan
speed is automatically set to adjust according to current temperature value. The fan
speed can be checked by SES protocol. User can use SES protocol to set fan speed,
but the action isn’t always success due to expander firmware would overwrite user’s
setting for the high temperature condition. For example, user may want to slow down
fan speed for energy saving, but the temperature in enclosure is too high, expander
firmware will remain fan speed at higher level to cool down enclosure.
4.2.4 SES elements status
Below examples are presented by using Avago® SAS9300-8e card and Avago®
GUI, MegaRAID Storage Manager.
One HBA is connected to E3250 JBOD, then element status can be seen in MSM.
*
NOTE: For Avago MSM utility, please visit offical Avago website on
http://www.avagotech.com/