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CHAPTER 4 Fault Repair Procedures
(a) ALM lamp (Red) indicates abnormal software behavior.
(b) SYS ALM lamp indicates MJ alarm when it is steady ON. Also it indicates MN alarm when it is flash-
ing in a certain interval.
(c) Check the alarm status before starting fault repair procedure. If any change is detected, record it.
(3) System Changeover (For Dual Configuration)
SV8500 server has TP block and SP block. The latter can be divided to “SP block for SIP Station” and “SP
block for other than SIP Station”. When CPU card is changed over, TP block and “SP block for SIP Station”
are switched over in combination. This is indicated by shaded background in the figure below. On the other
hand, “SP block for other than SIP Station” operates in load sharing (N+1), which means both the “SP block
for other than SIP Station” are placed in ACT mode.
(a) TP Changeover
• CMOD command from PCPro: Use this operation when available.
• Changeover by key operation: See “How to Change over CPU Card” for more details.
(b) SP Changeover
SV8500 Server #0
ACT/STBY
: ACT : STBY
(STBY)
(ACT)
(ACT)
(ACT)
(STBY)
(ACT)
TP #0
SP #0
㧔for SIP Station㧕
SP #0
㧔other than SIP Station)
SP #1
(other than SIP Station)
SP #1
(for SIP Station)
TP #1
load sharing 㧔N+1㧕
SV8500 Server #1
[1] TP block
SP block
[2] SP block (for SIP Station)
[3] SP block (other than SIP Station)
SV8500 Server
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