Preupgrade tasks
Issue 2.1 June 2006 211
Recording all busyouts
To record busyouts:
1. Type display errors. Press Enter.
2. Look for type 18 errors and record any trunks that are busied out. You can return these
trunks to the busyout state after the migration/upgrade.
Checking synchronization with the SAT (main server only)
To check the clock synchronization with the SAT:
1. Type status sync and press Enter to verify that the clock synchronization is correct.
2. Make a note of any outages.
Disabling scheduled maintenance with the SAT (main server only)
To prevent scheduled daily maintenance from interfering with the upgrade:
1. Type change system-parameters maintenance and press Enter.
2. Perform one of the following actions:
● If scheduled maintenance is in progress, set the Stop Time field to 1 minute after the
current time.
● If scheduled maintenance is not in progress, set the Start Time field to a time after the
upgrade is completed.
For example, if you start the upgrade at 8:00 p.m. and the upgrade takes 4 hours, set the
Start Time field to 23:59.
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