2. Netezza Migration Considerations
Vendor Comparison: IBM’s Integrated Analytics System (IIAS) vs. Exasol
IBM’s Integrated Analytics System (IIAS) is IBM’s suggested ‘next step’ for Netezza customers.
Here is a ‘sneak peak’ how IIAS compares to Exasol.
Exasol IBM
What is it? A high-performance in-memory analytics database. The memory is
used as a large cache, which enables you to perform queries with your
data. And the self-tuning, proprietary algorithms improve over time.
IBM’s new data warehouse appliance runs on IBM Power 8 hardware
and relies on IBM Db2 Warehouse. It stores data both in columnar and
row storage, and is deployed in containers.
Deployment options Deployment is completely flexible – either on-premises, appliance,
VM, on private cloud, and public clouds, such as AWS, Google Cloud or
Azure. A single node edition is available for smaller deployments.
IIAS consists of mixed hardware and software components. Unusually,
it’s been designed to be cloud-native so the core database engine runs
in containers. IBM encourages its customers to use the cloud version
– called Db2 Warehouse on Cloud – which is very similar to the
appliance.
Netezza migration compatibility Supports ANSI-SQL 2008, so all non-proprietary code will work. It can
also be extended with UDFs in any programming language, including
Python, R, Java and others.
IIAS supports SQL, similar to Exasol. It offers a Netezza compatibility
mode. Functions need to be migrated, recompiled and tested.