Selecting Application Services To Control - NEC Express5800/320Ma User Manual

Related Topics
•
"Creating and Managing Configuration Files" on page 3-1
•
"Saving a Configuration File" on page 3-5
•
"Displaying the Upgrade Summary" on page 3-19

Selecting Application Services to Control

Use the Application Services page to select the critical application services you want
the Active Upgrade console to automatically stop and restart during the upgrade
process.
If you select a service on the Application Services page, the Active Upgrade console
controls the service as follows:
•
When the system is split, the console saves the current Startup Type for the
service, changes the Startup Type to Disabled on the Upgrade Side, and then
stops the service on the Upgrade Side.
•
When the system is merged, the console stops the service on the Production Side,
restores the previous Startup Type for the service on the Upgrade Side, and starts
the service on the Upgrade Side. This ensures continuous availability of the
service, allows for comprehensive testing on the Upgrade Side, and prevents any
conflicts associated with two instances of a service running at the same time.
•
When an upgrade is aborted, if the system is in merge mode, the console shuts
down the Upgrade Side (which automatically stops the service) and restarts the
Production Side (which automatically starts the service based on its default
Startup Type). This returns the system to its previous, fault-tolerant state.
N O T E S
1. Standard operating system services do not require
control during the Active Upgrade process. Select
only services that pertain to your critical applications
(for example, Exchange, SQL, and IIS).
2. The Active Upgrade console never changes the
default Startup Type for a service on the Production
Side. Maintaining the default Startup Type on the
Production Side ensures that a service is always able
to restart on the Production Side if the upgrade
process is aborted or fails.
Selecting Application Services to Control
Configuring the Active Upgrade Process 3-9