ORACLE SITE GUARD · LEGACY · FULL STACK DR ON OCI · HA LEVEL 5
The legacy of Oracle Site Guard
A dependable tool that taught a generation of teams to switch over and fail over with confidence. This page honours it and shows the way forward to Full Stack DR on OCI.
Javid Ur Rahaman, Head of Applied Intelligence, AAI Applied Agentic Intelligence Research Labs®
Independent advisor. Former VP at Oracle (2003 to 2022), two decades of enterprise architecture leadership. Doctorate from Golden Gate University, San Francisco, CA, USA.
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Author, Modern Oracle Enterprise Architecture (BPB, 2022)US Patent 20210382868A1Google Scholar
LEGACY
What it gave enterprise teams
Repeatable operations
Recovery steps captured as plans that ran the same way every time, not rebuilt under pressure.
Tested switchover and failover
A dependable way to move database environments between sites and to rehearse doing it.
A practice to build on
Many teams built their disaster recovery discipline, runbooks and drills around it. That experience carries forward.
PATH FORWARD
From Site Guard to Full Stack DR on OCI
The product has been discontinued. Full Stack DR on OCI is the next-generation answer: it extends orchestration beyond the database to the application and infrastructure tiers, from one DR plan. Your existing plans, scripts and drill history are the starting point, not something to discard.
1. Inventory
Catalogue your Site Guard operation plans, scripts and test history.
2. Map
Translate each plan into Full Stack DR protection groups and DR plans, and close the gaps.
3. Prove
Run sampled drills, capture evidence, and cut over once results meet your target level.
ASSESSMENT
How SiteGuard complements the platform
The platform provides the orchestration. SiteGuard adds an independent layer of sampling, evidence and scoring so you can show, not assume, that you have reached HA Level 5. Where an alternative architecture fits a workload better, we assess that too.
Sample
We agree which systems, backups and failover tests represent your whole estate, and how many.
Score
Evidence from the sample is scored against a defined five-level HA and DR scale.
Roadmap
You receive a gap list and a costed path to Level 5.
USE CASES
Best uses of SiteGuard with Full Stack DR on OCI
Full Stack DR on OCI orchestrates recovery of the application, database and infrastructure tiers from one DR plan. SiteGuard adds the independent sampling, evidence and scoring that show you have reached HA Level 5. The patterns below apply across industries.
Always-on operations
Cascaded business continuity for billing, work management and ERP, proven in regular drills.
Clinical and research systems
Recovery evidence for regulated data, with drill records ready for audit.
Close and reporting
Hyperion and ERP kept recoverable through quarter-end, with measured recovery times.
Order to cash
EBS, Demantra and integration tiers failed over together, not one by one.
PeopleSoft campus and HR
Enrolment, payroll and benefits cycles protected across regions.
Plant to planning
Demand planning, ERP and middleware recovered in the right order.
Level 5: from tested to self-proving
Level 4 means a tested failover. Level 5 means recovery that is routinely exercised, measured and evidenced without manual steps. SiteGuard samples your systems, scores the evidence against the Level 5 criteria, and hands you the gap list and roadmap.
Lift to OCI with Full Stack DR: the 11-day region switch
Use the DR plan as the migration plan. Build the target OCI region as the standby, replicate, rehearse, then switch over and make it the primary. Reference plan, adjusted to your estate:
The 11-day timeline and the uptime target are our engagement targets for a prepared estate, not a vendor guarantee. Duration depends on data volume and readiness.
Patching legacy products with 99% availability
Patch the standby first, switch over, then patch the former primary. Users see a switchover instead of a patch outage, and every step is a repeatable plan with evidence. Target: 99% or better availability through patching cycles.
E-Business Suite
Application and database tiers patched in rotation.
PeopleSoft
Tools and application patches without a campus-wide outage.
Hyperion
Planning and consolidation kept available through close.
Oracle Analytics Server
Reporting tier patched behind a stable standby.
SOA Suite
Integration layer patched and recovered in order with its databases.
Demantra
Demand planning cycles protected across patch windows.
ORACLE EXPERIENCE
Two decades inside the Oracle estate
Javid designs systems that have to work inside real enterprises: the ERP, database and integration estates that run on Oracle, SAP and IBM stacks, and settings where recovery has to be proven.
SITE GUARD PROJECTS
Oracle Site Guard in production
Level 4 HA/DR for energy workloads
Site Guard subject-matter expert for a US energy utility. Cascaded business continuity across databases and AWS, delivered through the Level 4 HA/DR rollout, which earned an Oracle Certificate of Recognition. Engagement since 2021.
UT Southwestern
Site Guard work for a leading academic medical centre. Industry: healthcare and medical, where recovery has to be proven for clinical and research systems.
Other Oracle delivery
OceanX AWS to OCI
Delivered with a 62% ROI, featured in an Oracle press release (2018).
Data warehouse to Exadata Cloud
12 TB BI data warehouse moved from AWS to Exadata Cloud.
SAP ECC on Exadata
Supply chain rollout for APAC, Al Shaya, Kuwait.
Hyperion lift to OCI
Three-week migration to OCI Gen 2 for a US client.
Full profile on LinkedIn.
NEWSLETTERS
Read on LinkedIn
Also: Return on Intelligence (ROI²) and OCI Managed MCP, on LinkedIn.
CONNECT
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Tell us about your estate and your decision timeline. Reach out on X, LinkedIn or Facebook. See also drjavid.bio.