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CHAPTER 2 Operations of SV8500 Server
STEP 1 Make sure which CPU card is placed in ACT mode by checking lamp ACT lamp on the EMA
card. When CPU card #0 is active, SYS0 - ACT lights green on the EMA card.
Figure 2-10 CPU in ACT/STBY Mode (when #0 is ACT)
STEP 2 Check the mate CPU card (#1 in this example) is operating normally.
• PWR lamp lights green on the CPU card?
• ON LINE lamp light green on the CPU card?
• ALM lamp is off on the CPU card?
STEP 3 Set the MBR key to ON (downward) on the active CPU card. A few seconds later, return the
MBR key to OFF (upward). System changeover starts automatically. The ACT lamp will change
as follows on the CPU card.
• MBR key operation
• Both ACT lamps start flashing for few seconds on the EMA card.
• ACT lamp of the mate CPU card lights green on the EMA card.
PWR
SYS
ALM
SYS 1
MB
(SUB)
SYS
LOCK
SYS
SEL
PFT
LINK
ACT
ALM
INIT
PBI No.
SYS 0
0
1
ON
12 12
SWO0
SWO1
ACT lamp (SYS1: CPU#1)
ACT lamp (SYS1: CPU#0)
CF
CONSOLE
PWR
LOAD
ON
LINE
MODE
USB
1234
ON
LINE SPEED
LINE SPEED
3
4
LINE SPEED
LINE SPEED
1
2
CF
CONSOLE
PWR
LOAD
ON
LINE
MODE
USB
1234
ON
LINE SPEED
LINE SPEED
3
4
LINE SPEED
LINE SPEED
1
2
ACT:
STBY:
PWR lamp
ON LINE lamp
The system changeover of CPU can be performed only when the mate CPU is available.
WARNING
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