The diagram path now follows a documented standard procedure (lookup the closest Oracle Architecture Center reference → confirm components → author absolute_layout → spec validator → render → visually verify) and ships persistent guardrails so layout regressions can't recur. Persistent procedure changes (apply to all users, all sessions): - tools/diagram_spec_validator.py — geometry checks (CONTAINER_TOO_THIN, CONTAINER_PADDING_VIOLATION, LABEL_OVERFLOW_PARENT) run BEFORE either renderer (drawio + PPTX). Catches the subnet-collapse / label-overflow bugs that the post-render drawio validator missed. - tools/oci_diagram_gen.py + tools/oci_pptx_diagram_gen.py — call the spec validator before emitting any output. Adds mysql / mysql_heatwave type aliases. - tools/archcenter_pattern_lookup.py — scores against cached page descriptions (not just the 1-line summary), supports --queries for multi-fragment composition, and applies synonym expansion via kb/architecture-center/synonyms.yaml so "LB HA cross AD" matches "load balancer high availability availability domain". - kb/architecture-center/synonyms.yaml — canonical synonym table (load balancer, autonomous database, data guard, …) used by the lookup scorer. KB enrichment: - tools/archcenter_description_fetcher.py + 121 cached _description.md under kb/diagram/assets/archcenter-refs/<slug>/. Removes the runtime dependency on docs.oracle.com when authoring specs and feeds the pattern-lookup scorer. - 110+ cached .drawio / .svg / .png references for offline reuse, plus the OCI Toolkit v24.2 import (kb/diagram/assets/oci-toolkit-drawio). Documentation: - docs/skill/output-formats.md — new "Standard diagram-generation procedure (MANDATORY)" + geometry rules + the new validator entry. - SKILL.md option 2 — references the mandatory procedure. - README.md — describes the spec validator, archcenter_pattern_lookup and description fetcher, and updates the KB-health table. Tooling that backs the procedure (cumulative across recent sessions): tools/archcenter_case_runner.py, archcenter_batch_driver.py, archcenter_zip_downloader.py, drawio_visual_validator.py, drawio_fidelity_eval.py, harvest_drawio_icon.py, import_oci_library.py, oci_pptx_diagram_gen.py, oci_pptx_render.py, refresh_pptx_icon_index.py. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Deploy Oracle Key Vault for Oracle Database@Azure
- Source: https://docs.oracle.com/en/solutions/deploy-key-vault-database-at-azure/index.html
- Date: 2024-10
- Type: reference-architecture
- Services: vault, exacs, azure
- Tags: security, database, multicloud, azure
Summary (catalog)
Key Vault for TDE key management on Database@Azure. Centralized encryption key lifecycle with multi-master replication for HA. Supports PKCS#11, REST API, and Oracle-native key management.
Architecture (fetched from source)
Architecture
This architecture shows how to deploy Oracle Key Vault on an Microsoft Azure virtual machine (VM) as a secure long-term external key management storage for Oracle Exadata Database Service encryption keys in Oracle Database@Azure .
The architecture diagram depicts the recommended Oracle Key Vault multi-master cluster in Azure to provide continuously available, extremely scalable, and fault-tolerant key management for the Oracle Database in Oracle Exadata Database Service ( Oracle Database@Azure ).
The following diagram illustrates this reference architecture.
Description of the illustration key-vault-database-azure-diagram.png
key-vault-database-azure-diagram-oracle.zip
Oracle Key Vault for Oracle Database@Azure can be deployed on-premises, in Azure , or any other cloud, as long as network connectivity can be established. Stretched Oracle Key Vault clusters (on-premises to cloud, or across cloud providers) are also possible, giving you maximum deployment flexibility and local availability of your encryption keys. Oracle Key Vault provides "hold your own key" functionality out of the box, without the need for an additional, expensive third-party key management appliance.
The architecture has the following components:
- Azure region An Oracle Cloud Infrastructure region is a localized geographic area that contains one or more data centers, called availability domains. Regions are independent of other regions, and vast distances can separate them (across countries or even continents).
An Azure region is a geographical area in which one or more physical Azure data centers, called availability zones, reside. Regions are independent of other regions, and vast distances can separate them (across countries or even continents).
Azure and OCI regions are localized geographic areas. For Oracle Database@Azure , an Azure region is connected to an OCI region, with availability zones (AZs) in Azure connected to availability domains (ADs) in OCI. Azure and OCI region pairs are selected to minimize distance and latency.
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Azure availability zone An availability zone is a physically separate data center within a region that is designed to be available and fault tolerant. Availability zones are close enough to have low-latency connections to other availability zones.
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Microsoft Azure Virtual Network Microsoft Azure Virtual Network (VNet) is the fundamental building block for your private network in Azure . VNet enables many types of Azure resources, such as Azure virtual machines (VM), to securely communicate with each other, the internet, and on-premises networks.
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Exadata Database Service on Dedicated Infrastructure Oracle Exadata Database Service delivers proven Oracle Database capabilities on purpose-built, optimized Oracle Exadata infrastructure in the public cloud. Built-in cloud automation, elastic resource scaling, security, and fast performance for OLTP, in-memory analytics, and converged Oracle Database workloads help simplify management and reduce costs.
Exadata Cloud Infrastructure X9M brings more CPU cores, increased storage, and a faster network fabric to the public cloud. Exadata X9M storage servers include Exadata RDMA Memory (XRMEM), creating an additional tier of storage, boosting overall system performance. Exadata X9M combines XRMEM with innovative RDMA algorithms that bypass the network and I/O stack, eliminating expensive CPU interrupts and context switches.
Exadata Cloud Infrastructure X9M increases the throughput of its 100 Gbps active-active Remote Direct Memory Access over Converged Ethernet (RoCE) internal network fabric, providing a faster interconnect than previous generations with extremely low-latency between all compute and storage servers.
- Oracle Database@Azure Oracle Database@Azure is the Oracle Database service ( Oracle Exadata Database Service on Dedicated Infrastructure or Oracle Autonomous Database Serverless ) running on Oracle Cloud Infrastructure (OCI), deployed in Microsoft Azure data centers. The service offers features and price parity with OCI. Users purchase the service on Azure Marketplace.
Oracle Database@Azure integrates Oracle Exadata Database Service , Oracle Real Application Clusters (Oracle RAC) , and Oracle Data Guard technologies into the Azure platform. Oracle Database@Azure service offers the same low latency as other Azure -native services and meets mission-critical workloads and cloud-native development needs. Users manage the service on the Azure console and with Azure automation tools. The service is deployed in Azure Virtual Network (VNet) and integrated with the Azure identity and access management system. The OCI and Oracle Database metrics and audit logs are natively available in Azure . The service requires that users have an Azure tenancy and an OCI tenancy.
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Transparent Data Encryption (TDE) Transparent Data Encryption (TDE) transparently encrypts data at rest in an Oracle Database . It stops unauthorized attempts from the operating system to access database data stored in files, without impacting how applications access the data using SQL. TDE is fully integrated with Oracle Database and can encrypt entire database backups (RMAN), Data Pump exports, entire application tablespaces, or specific sensitive columns. Encrypted data remains encrypted in the database, whether it is in tablespace storage files, temporary tablespaces, undo tablespaces, or other files such as redo logs.
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Key Vault Oracle Key Vault securely stores encryption keys, Oracle Wallets, Java KeyStores, SSH key pairs, and other secrets in a scalable, fault-tolerant cluster that supports the OASIS KMIP standard and deploys in Oracle Cloud Infrastructure , Microsoft Azure , and Amazon Web Services as well as on-premises on dedicated hardware or virtual machines.
Recommendations
Use the following recommendations as a starting point. Your requirements might differ from the architecture described here.
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Oracle Key Vault ISO To build the right Oracle Key Vault solution, make sure to use the latest Oracle Key Vault installation medium. See Explore More for the Oracle Software Delivery Cloud link.
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Oracle Key Vault image building To build the Oracle Key Vault image from the ISO, do so on a local system with at least 1 TB of storage with at least 32 GB in RAM. Create the virtual hard disk as Fixed size and in the VHD format.
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Multi-node cluster Deploy Oracle Key Vault as a multi-node cluster to achieve maximum availability and reliability with read-write pairs of Oracle Key Vault nodes.
Oracle Key Vault multi-master cluster is created with a first node, then additional nodes can e subsequently inducted to eventually form a multi-node cluster with up to 8 read-write pairs.
The initial node is in read-only restricted mode and no critical data can be added to it. Oracle recommends to deploy a second node to form a read-write pair with the first node. After which, the cluster can be expanded with read-write pairs so that both critical and non-critical data can be added to the read-write nodes. Read-only nodes can help with load balancing or operation continuity during maintenance operations.
Consult the documentation to learn how a multi-master cluster affects endpoints, both in the way an endpoint connects and with restrictions.
For large deployments, install at least four Oracle Key Vault servers. Endpoints should be enrolled by making them unique and balanced across the four servers to ensure high availability. For example, if a data center has 1,000 database endpoints to register, and you have four Oracle Key Vault servers to accommodate them, then enroll 250 endpoints across each of the four servers.
Ensure that the system clocks of the endpoint host and the Orac