OCI Migration Architect case studies

OCI Migration Architect · Put your knowledge to work in context.

The Oracle Cloud Infrastructure 2023 Migration Architect Professional credential appears on Oracle University's certification catalog under exam code 1Z0-1123-23. This page is an independent study guide, not an Oracle publication, and makes no claim of affiliation with Oracle or Oracle University. The OCI Migration Architect case studies are 5 cases and about 4,887 words.

Insurer's 240-VM Estate: 7R Judgement Against a 'No Exceptions' Mandate

A regional insurer is moving 240 VMware VMs (38 applications) to OCI within 14 months. At month 3 the board cut programme budget by 22%.

865 words, about 4 min 2

Overlapping Address Space and Spoke Isolation in a Three-VCN Landing Zone

A logistics company is migrating to OCI from two on-premises data centres. Its own estate uses 10.0.0.0/8.

957 words, about 5 min 3

14 TB Oracle RAC into a 30-Minute Switchover Window

A payments processor runs Oracle 19c four-node RAC on Exadata X7 for its settlement database: 14 TB, non-CDB, character set WE8ISO8859P1, database timezone file version older than the target, with a measured daily change rate of about 8% (roughly 1.1 TB). The schema uses Java stored procedures, directory objects for external-table loads, database links to three other databases, and two LONG columns in a legacy audit table.

1,031 words, about 5 min 4

Portal Cutover with Hardcoded Client IPs and Pinned Certificates

A subscription media company is cutting over its customer portal - 60 Linux VMs, two web tiers and a 3 TB PostgreSQL database - from a colocation cage to OCI in a single 9-hour Saturday window. Bulk data has been replicated with rsync every 6 hours and the final delta is expected to be under 40 GB.

1,008 words, about 5 min 5

SAP ECC on Oracle: Lift-and-Shift Before S/4HANA

A manufacturer runs SAP ECC 6.0 EHP8 on Oracle 12c on-premises: 38 TB database, 4,000 concurrent users, peak 180,000 SAPS at quarter-end, and an SLA of 1.2 seconds average dialog response time. A separate 6 TB SAP BW on HANA supports planning.

1,026 words, about 5 min