NEC SV8500 Operation And Maintenance Manual - page 120
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CHAPTER 2
Operations of SV8500 Server
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CPU Replacement Procedure for CPU Dual Configuration
Replacement procedure explained here assumes the following scenario as an example:
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CPU card (#1) must be replaced
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CPU card (#1) is operating as ACT
Therefore, in the following explanation, replace #1 with #0 as needed when performing this procedure on the
actual system.
Note:
When the system is CPU-dual configuration, system shutdown is not necessary for CPU replacement.
[Start]
STEP 1
Make sure the CPU to be replaced is placed in STBY mode.
•
“ACT” lamp of “SYS0” side lights green: CPU card #0 is in ACT mode.
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“ACT” lamp of “SYS1” side lights green: CPU card #1 is in ACT mode.
STEP 2
If the CPU to be replaced is in ACT mode, place it in STBY mode. Otherwise, start from
•
Use CMOD command from PCPro.
Note:
MODE switch - 4 is Make Busy Request (MBR) key. CPU ACT/STBY can be switched by this switch. See
“
” - “
CPU Changeover by Key Operation”
for more details.
STEP 3
Make sure the CPU to be replaced is placed in STBY mode.
•
“ACT” lamp on the EMA card is changed? (In this example, “SYS0: ACT” lamp lights green.)
STEP 4
Lock the ACT-side CPU card to ACT. (In this example, set CPU card #0 always ACT.)
•
Select ACT-side CPU by SW01-2 (SYS SEL) on EMA card. (In this example, downward.)
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Lock CPU ACT/STBY by SW01-1 (SYS LOCK) on EMA card: upward
Note:
CPU ACT/STBY can be locked so that CPU ACT/STBY switchover may not take place during CPU card
replacement.
Note:
SW01-02 (SYS SEL) setting shown above is an example, by which CPU card #0 is locked to ACT. The
setting may vary depending on the actual system.
STEP 5
Turn off the STBY side CPU card.
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On the initial screen, select “System Control” radio button.
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Select an appropriate System Side (System 0 or System 1).
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Click “Execute” button.