Database High Availability Simplified

Conversational and Cognitive AI Leader Chooses FlashGrid SkyCluster for Database High Availability in Azure Cloud

Case Study


Nuance PowerShare is the industry’s largest medical imaging network with 3+ billion images exchanged by thousands of connected facilities. As part of migrating the PowerShare service to Azure cloud, Nuance database and infrastructure teams approached FlashGrid for help with implementing a highly available Oracle database backend for the service.


FlashGrid offered Nuance a database backend architecture based on FlashGrid SkyCluster engineered cloud system, an Azure Certified software offering delivered via Azure Marketplace. FlashGrid SkyCluster featuring Oracle RAC database engine protects against unexpected infrastructure or software failures with zero RPO and RTO and allows maintenance operations on the database nodes with no service downtime. Infrastructure-as-Code automation makes deployment of the database clusters simple, fast, and repeatable.

Database cluster configuration:

  • Three Oracle RAC database nodes: E64s_v3 VM type
  • Data Store: 19 TB usable on Premium SSD disks
  • Oracle Database Enterprise Edition ver.
  • Oracle Grid Infrastructure ver.
  • Red Hat Enterprise Linux 7
  • FlashGrid Storage Fabric ver. 18.07
  • FlashGrid Cloud Area Network ver. 18.07


Nuance PowerShare now has a highly available database backend for providing continuous and uninterrupted medical image sharing service while taking advantage of the flexibility and the agility of the Azure cloud infrastructure.

Nuance Communications (NASDAQ: NUAN) is the pioneer and leader in conversational and cognitive AI innovations that bring intelligence to everyday work and life. Nuance delivers solutions that can understand, analyze and respond to human language to increase productivity and amplify human intelligence. With decades of domain and artificial intelligence expertise, Nuance works with thousands of organizations – in global industries that include healthcare, telecommunications, automotive, financial services, and retail – to create stronger relationships and better experiences for their customers and workforce.

“FlashGrid SkyCluster provides us all elements needed for running our mission-critical Oracle databases in Azure: storage and networking software, deployment automation, and 24×7 support.”

Jay Wilder
Sr. Director of Software Engineering
Nuance Communications

“We had to migrate dozens of mission critical Oracle RAC databases from Exadata to AWS with FlashGrid SkyCluster, and were able to do it without sacrificing performance or availability.”

Rama Kolli, Sr. Director – Database Management, S&P Global Ratings

“FlashGrid SkyCluster provides us all elements needed for running our mission-critical Oracle databases in Azure: storage and networking software, deployment automation, and 24x7 support.”

Jay Wilder, Sr. Director of Software Engineering, Nuance Communications

“With FlashGrid and AWS we can now deploy a new application within two weeks instead of six months, without compromising our availability SLA.”

David Urban, VP Operations, Aria Systems

“SkyCluster for Azure proved to be a reliable solution that is easy to implement and support for us as a systems integrator.”


“With our new virtualized RAC running on FlashGrid architecture we do a 125GB full table scan in 6 seconds. That is an 11x improvement over our previous setup.”

Sam Shiel, Oracle DBA, Simplyhealth

“Implementing Oracle RAC with FlashGrid in AWS is an important milestone in Digital Virgo’s cloud journey.”

Mikolaj Klimek, Deputy Director IT Operations and Infrastructure, Digital Virgo

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