What downtime of our productive system should we expect during the technical upgrade?
Business downtime is the period during the technical upgrade when the production
system is out of service. It includes the technical downtime and temporary
cessation of customer-specific activities. The technical downtime period depends
on various factors, primarily on hardware power, and therefore differs in each individual
situation. Upgrade technology from SAP provides you with two strategy options:
a strategy that minimizes downtime and a strategy that minimizes required
resources.
Characteristics of the strategy
minimizing downtime include:
•
Shorter business downtime
•
Parallel operation of production system and shadow system, which enables the
execution of as many upgrade tasks as possible during the uptime of the production
system
•
Higher demand on system resources
Characteristics of the strategy
minimizing resources required include:
•
N o parallel operation of production system and shadow system
•
L ower demand on system resources
•
I ncreased business downtime
SAP recommends that you perform the upgrade using the strategy that minimizes
downtime if a short business downtime is required.
You can find statistical customer experience data about this and other questions in
the upgrade experience database at
www.service.sap.com/upgradedb. SAP also
offers services to help you reduce the production downtime as much as possible.
One of them is a near-zero-downtime method for customers with special requirements
regarding system availability. To find further information, please visit SAP
Service Marketplace at
www.service.sap.com/upgradeservices.
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