new system and upgrades
Present has a long history in the area of IBM Power systems.
Selling a system is one thing. Migrating to a new system adequately sized, totally transparently to the end users is another thing.
Present has a proven methodology that allows for a smooth implementation.
A new system or a system upgrade starts with a capacity planning.
In the case of a system upgrade, using performance analysis tools allows to know exactly what the current usage is. You can then factor-in the expected growth. This gives us the requirements for the new system.
In the case of a new system, Present has access to the IBM workload estimator tool. This allows sizing a new system fairly accurately.
Once the requirements for the new system is defined, our systems architects team will prepare an optimised system configuration.
Our highly skilled systems architects know the system inside out. They can optimise just about any configuration to minimise costs without sacrificing performance or future upgrade options.
A definition of the elements necessary to ensure a smooth implementation is executed. During the planning phase, numerous verifications must be completed by one of our skilled technicians. An onsite visit prior to the migration is done in order to verify the health of the system prior to migration, to document the system and to verify that everything has been delivered.
Planning is the key to a smooth implementation.
Installation and migration
Present has several migration options available, depending on the requirements.
When down time needs to me minimized, Present uses an efficient migration tool that transfers all applications and data to the new system while the production system stays active. This approach allows the new system to be setup and tested without pressure from the business.
Once testing is complete, promoting the new system in production usually takes less than an hour.
This approach is useful also when the old and new system uses incompatible tape technologies.
When down time is not an issue, other migration approaches includes traditional saves & restore using tapes, and RISC to RISC migration, which allows to change system and OS version at the same time.