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CHAPTER 2 Operations of SV8500 Server
8.1.3 How to Change over CPU Card
CPU card, when it is provided in a dual configuration, can be switched over by
one of the operations shown in the table below. When the system of CPU is
changed over, the ACT/STBY of GT (in TSWR) is also changed over (4-IMG)
.
Note 1: While the changeover of the CPU card is in progress, any call attempt is rejected. Already established
calls, however, will not be affected.
(a) CPU Changeover by CMOD Command
See CHAPTER 7 Maintenance Commands for more details.
(b) CPU Changeover by Key Operation
To change over the ACT/STBY of CPU card, CMOD command is normally used. However, if the com-
mand cannot be used for some reason, do this changeover by the key operation.
[Start]
Replacement procedure explained here assumes that the system is operating as follows:
• CPU card (#0) is placed in ACT mode
• CPU card (#1) is placed in STBY mode
Therefore, in the following explanation, replace #1 with #0 as needed when performing this procedure on
the actual system.
TYPE OPERATIONS REMARKS
(a) Changeover by CMOD Use CMOD command.
(b) Changeover by key operation
Turn off (downward) MBR key (MODE switch - 4) on the ACT CPU
card. After a few seconds, return it to the previous position.
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
Improper key operations may result in a system down. Operate the related keys, applying
extreme care.
WARNING
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