Azure
Common questions about running Tessell-managed databases on Microsoft Azure infrastructure.
Q: How does Tessell provide services to databases running on Azure infrastructure?
A: Tessell leverages Azure Virtual Machines and Azure Managed Disks for the data infrastructure. Two types of compute shapes are available:
High-performance
Lsv3, Lasv3 series
NVMe local SSDs — unparalleled IOPS
Standard
General-purpose shapes
Azure Premium SSDs or Ultra SSDs
Additional infrastructure details:
You can attach a VNet of your choice to the VM — either a public or private Azure Virtual Network.
The Tessell Availability Machine protects database data through regular snapshots and transaction log backups, stored using Azure Snapshots and Azure Blob Storage.
Q: Is Tessell certified by Azure (Microsoft)?
A: Yes. Tessell holds three Azure certifications that confirm production readiness on the Azure platform:
Azure-preferred solution
Listed in the Azure Marketplace as a preferred DBaaS
IP Co-sell Ready
Microsoft sales teams can jointly sell Tessell with Azure services
MACC-eligible
Purchases count toward your Microsoft Azure Consumption Commitment
Q: How does Tessell guarantee Zero Data Loss on Azure?
A: The Tessell Availability Machine provides Zero Data Loss for Oracle databases. The data is protected by Availability Machine in three parts:
Snapshots: Snapshots are taken regularly with a minimum of one per day.
Archive Log Backups: Archive logs are backed up every 5 minutes.
Online/Redo Logs: Redo logs are multiplexed and kept on a Premium SSD.
If a database failure occurs, Tessell can restore to the last committed transaction with the combination of the above three.
Q: What High Availability and Disaster Recovery options does Tessell support on Azure?
A: Tessell supports two levels of resilience on Azure:
Multi-AZ High Availability:
Deploy a database in a Multi-AZ configuration — Tessell creates a standby instance in a different Azure Availability Zone.
The standby uses synchronous replication (Oracle Data Guard for Oracle; native streaming replication for PostgreSQL).
In the event of a primary failure, the standby is automatically promoted with no manual intervention.
A database proxy provides transparent connection failover so applications reconnect without code changes.
Cross-Region Disaster Recovery:
Tessell supports snapshot and log replication to a second Azure region for full DR coverage.
A global IP failover redirects traffic to the DR instance automatically if an entire region becomes unavailable.
Q: How does Tessell address the data security guidelines laid out by the RBI?
A: Azure Cloud is an RBI-certified Cloud Service Provider (CSP). Tessell additionally ensures RBI guidelines are met across the following areas:
Data Residency and Sovereignty
Tessell is enabled for all Azure India regions; new regions are added as they become available
Access Controls
With VPT @ Customer, databases are hosted inside the customer's own Azure account; with Tessell-hosted options (Professional/Business/VPT), network isolation and access restrictions are enforced by Tessell. In both cases, Tessell integrates with in-house PAM and DAM policies; no inbound connections from public IPs unless explicitly enabled
Data Encryption
All databases are encrypted at rest; only SSL connections are enabled in transit
Backup and Disaster Recovery
Multi-Region HA/DR with near-zero RPO meets RBI business continuity requirements; database-native backup gives banks freedom to choose long-term storage (cloud or physical datacenter)
Tessell's architecture ensures that auditing and compliance checks can be enabled seamlessly through the customer's own governance tooling.
Q: How is Tessell integrated with other Azure Data Services such as Data Factory, Synapse Analytics, and Power BI?
A: Tessell-managed databases on Azure integrate with the full Azure data ecosystem. Common integration scenarios:
Azure Data Factory
Use ADF data pipelines to ingest data from any source into — or out of — Tessell databases; schedule and orchestrate ETL/ELT workflows
Azure Synapse Analytics
Use Tessell as a data source or destination in Synapse pipelines for data lake storage, warehousing, and transformations
Azure DB Link
Establish secure cross-database connections (same or different subscriptions) and run cross-database queries directly against Tessell-hosted databases
Azure Stream Analytics
Ingest and process real-time streaming data; persist processed results into Tessell for analysis or reporting
Azure Machine Learning
Use Tessell as a training data source for Azure ML model builds
Azure Power BI
Connect Power BI directly to Tessell databases as a data source; build interactive dashboards and reports
Because Tessell-managed databases expose standard connection strings, any tool that supports JDBC/ODBC connectivity can integrate with no additional configuration.
Q: How can I migrate a database from on-premises to Tessell on Azure?
A: Tessell provides managed migration assistance — you do not need to plan or execute the migration alone.
How the process works:
The Tessell Customer Success team reviews your database (size, version, expected downtime tolerance, network topology).
They propose the optimal migration strategy — typically one of:
Lift and shift (minimal refactoring, accepted downtime window)
Near-zero downtime migration using engine-native replication tools (e.g., Oracle GoldenGate, PostgreSQL logical replication)
For workloads that require upgrades or application refactoring, Tessell works with Azure Certified Partners to provide additional advisory.
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