7210 SAS-MXP, R6, R12, S, SX, T BASIC SYSTEM
CONFIGURATION GUIDE RELEASE 22.9.R1
System management
6.3.1.2 State database synchronization
If a new standby CPM or CFM is inserted into the system, it synchronizes with the active CPM or CFM
upon a successful boot process.
If the standby CPM or CFM is rebooted, it synchronizes with the active CPM or CFM after a successful
boot process.
When configuration or state changes occur, an incremental synchronization is conducted from the active
CPM or CFM to the standby CPM or CFM.
If the synchronization fails, the standby CPM or CFM does not reboot automatically. Use the show
redundancy synchronization command to display synchronization output information.
If the active and standby CPMs or CFMs are not synchronized for any reason, you can manually
synchronize the standby CPM or CFM by rebooting the standby by issuing the admin reboot standby
command on the active or the standby CPM or CFM.
6.4 Synchronization and redundancy
The 7210 SAS-R6 and 7210 SAS-R12, and the 7210 SAS-Sx/S 1/10GE configured in the standalone-
VC mode support CPM redundancy. Redundancy methods facilitate system synchronization between
the active and standby CPMs so they maintain identical operational parameters, which prevents
inconsistencies in the event of a CPM failure.
When automatic system synchronization is enabled for an entity, save or delete file operations that are
configured on the primary, secondary or tertiary choices on the active CPM file system are mirrored in the
standby CPM file system.
Although software configurations and images can be copied or downloaded from remote locations,
synchronization can only occur locally between compact flash drives (cf1: and cf2:).
Synchronization can occur:
• automatically
Automatic synchronization is disabled by default. To enable automatic synchronization, run the
config>redundancy>synchronize command with the boot-env parameter or the config parameter.
When the boot-env parameter is specified, the BOF, boot.ldr, configuration, and image files are
automatically synchronized. When the config parameter is specified, only the configuration files are
automatically synchronized.
Automatic synchronization also occurs whenever the BOF is modified and when an admin>save
command is entered with no filename specified.
• manually
To execute synchronization manually, run the admin>redundancy> synchronize command with the
boot-env parameter or the config parameter.
When the boot-env parameter is specified, the BOF, boot.ldr, configuration, and image files are
synchronized. When the config parameter is specified, only the configuration files are synchronized.
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