Data Store Upgrades 113
Performing a Client/Server online upgrade from a
TimesTen version prior to 6.0
Overview
A user application linked with a 5.0 or later release of the TimesTen
Client ODBC driver can connect to a Server DSN of a newer major
11. Use ttAdmin to start the replication
agent on the new data store
upgrade
and to begin sending updates to the
data store
active:
ttAdmin -repStart upgrade
12. Verify that the data store upgrade is
receiving updates from
active. You
can verify that updates have been
sent by applying a recognizable
update to a table reserved for that
purpose in the data store
active.
When the update appears in
upgrade,
you know that replication is
operational.
If the applications are still running on
the data store
active, let them
continue until the data store
upgrade
has been successfully migrated and
you have verified that the updates are
being replicated correctly from the
active to upgrade.
13. Once you are sure that updates are
being replicated correctly, you can
disconnect all of the applications from
the data store
active and reconnect
them to the data store
upgrade. After
verifying that the last of the updates
from
active have been replicated to
upgrade, the data store active is
ready to be upgraded.
Note: You may choose to delay
upgrading
active to the new
TimesTen release until sufficient
testing has been performed with the
data store
upgrade in the new
TimesTen release.
Step Upgrade System Active System
