Alcatel-Lucent 7950 XRS Series, Руководство по настройке

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Configuration Rollback
Page 58 7950 SR OS Basic System Configuration Guide
• When a new backup CPM is commissioned, the user execute the admin redundancy
rollback-sync command to copy the entire set of rollback files from the active CPM cf to
the new standby CPM cf. If the operator wants the system to automatically copy new
rollback checkpoints to both cfs whenever a new checkpoint is created, then the
config
redundancy rollback-sync should be configured.
• An HA CPM switchover during a rollback revert will cause the rollback operation to
abort. The newly active CPM will have an indeterminate configuration. A log event is
created in this case to warn the operator. When an HA switchover occurs during a rollback
(or within a few seconds of a rollback completing), the operator is advised to repeat the
rollback revert operation to the same checkpoint.
• A rollback checkpoint stores the rollback-location and the local/remote-max-checkpoint
values, and as such a rollback revert operation can change those values. If an operator
changes the local/remote-max-checkpoint values it is recommended to delete all the
existing checkpoints (otherwise a subsequent rollback revert could change the max back
to a previous value).
• If a warning prompt ( y/n ) is displayed when a rollback revert is initiated, it is highly
suggested to respond no to the warning prompt the first time, save a rollback checkpoint
before attempting this rollback revert, and then executing the revert again and responding
yes . If the rollback encounters problems then a revert to the saved checkpoint can be used
to go back to the initial configuration state.