Kontron RTM806x - Manual (Page 18)

5 RTM806X
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Each HDD is an independent FRU that is hot swappable. The HDD hotswap handle is used to raise an event to
the OS in order to hotswap the HDD without interrupting the front board operation.
1.6.1.5 Insertion and Removal of the Managed FRUs
After insertion, the front board detects and activates the management components of the FRU. When the
handle is closed, the power budget and the e-keying negotiations start. Then, the front board's IPMC
activates the payload components of the FRU.
Opening the RTM handle switch on the RTM FRU will start the deactivation process, which either deactivates
the whole board (front board, RTM and RTMHDD) or only the RTM806X and its RTMHDDS, depending on a
configuration policy available through the CMOS configuration menu. See AT8060 User Manual's appropriate
BIOS section for details.
The operational state of the FRU is reported through the management subsystem’s FRU Hot Swap sensors.
The BLUE LED is 100% off when a FRU is operational and unsafe for extraction. An always on(100%) indicates
that a FRU can safely be extracted; transitional states are identified through blinking patterns. Additional
details on the standard FRU Hot Swap sensor and the BLUE LED usage can be found in the AdvancedTCA
specifications.