Sybase 15.0.2 - Manual (Page 150)

Disabling the secondary truncation point
136 Adaptive Server Enterprise
3 Log in to the replicate Replication Server and suspend the Log Transfer
connection from the primary RSSD:
1> suspend log transfer from server.database
2> go
4 If you are using Rep Agent, log in to the Adaptive Server, and stop the Rep
Agent:
1> use database
2> go
1> sp_stop_rep_agent database
2> go
5 If you are using LTM, shut down the LTM.
Disabling the secondary truncation point
When you upgrade a primary database, the Rep Agent or the Log Transfer
Manager (LTM) must not be running, and the secondary truncation point
should be turned off for the duration of the upgrade. The Rep Agent or Log
Transfer Manager should already be shut down (from the previous steps).
For each primary database and replicated RSSD, disable the secondary
truncation point:
1 If this is a replicated RSSD, log in to the Replication Server of the RSSD,
and issue:
1> sysadmin hibernate_on, 'Replication Server'
2> go
2 Disable the secondary truncation point in the Adaptive Server database
that is being upgraded by issuing:
1> use database
2> go
1> dbcc settrunc('ltm', 'ignore')
2> go
If the dbcc settrunc command fails, make sure that the Rep Agent or LTM
are not running. When the Rep Agent and LTM are disabled, repeat this
step.