Kontron CP6003-RC IPMI - Manual (Page 38)

IPMI Firmware CP6003-SA/RA/RC
Page 38 ID 1045-5656, Rev. 2.0
P R E L I M I N A R Y
12. Hot Swap and Shutdown
12.1 Hot Swap Handle and Hot Swap (Blue) LED
To perform the actions required for hot swapping of the CP6003-SA/RA/RC, a hot swap state
machine with the following M-states generated by the IPMI controller is used:
• M0: Board Not Installed
• M1: Board Inactive
• M2: Board Activation Request
• M3: Board Activation in Progress
• M4: Board Active
• M5: Board Deactivation Request
• M6: Board Deactivation in Progress
The blue Hot Swap LED (HS LED) of an inserted board in a powered rack is normally used to
indicate the board's operational status so as to facilitate hot-swapping of the board:
• Hot Swap LED On
The payload is inactive:
• The board may be activated by closing the Hot Swap handle, or
• The board may be extracted. The M-state is 1.
When payload power is off e.g. after a shutdown via an IPMI chassis command and
the handle is still closed, the M-state is 1.
• Hot Swap LED Blinking
Changing from active state to inactive state or vice versa.
Don't extract the board now. The M-state is 2, 5 or 6.
• Hot Swap LED Off
The payload is active.
Don't extract the board now. Normally the extraction is impossible because the handle is
closed and locked. The M-state is 3 or 4.
Normally the logical states “active” and “inactive” of a payload are identical to the physical
states “handle open” and “handle closed” or “payload power off” and “payload power on”.
If, however, the power is switched on or off using IPMI chassis commands or the payload is
shut down by the OS, then the position of the Hot Swap handle and the power state may be-
come asynchronous. In this case the blue LED is switched on indicating that the payload power
is switched off although the handle is closed. Such actions are not part of the Hot Swap process
and are governed by their own functionality which is not within the scope of this document.