Database High Availability Simplified

How does SkyCluster help with deploying a mission-critical application in the cloud?

SkyCluster offers HA database architecture that allows full control and the flexibility to meet future database and infrastructure requirements:

  • Active-active or Fail-over database clustering based on proven FlashGrid and Oracle clustering technologies.
  • Full control of sizing, patching/updates, and database features. You have the root@ access.
  • Portability between cloud providers.
  • Ease of deployment similar to DBaaS.

How can SkyCluster help us with moving our existing Oracle databases to the cloud?

SkyCluster enables running Oracle RAC in the cloud. Even if you have been using only single-instance databases, consider using the SkyCluster with Oracle RAC to increase database availability and to mitigate the lack of control over the compute and storage resources. Additionally, SkyCluster Launcher fully automates the process of configuring Oracle RAC clusters and allows creating a cluster in AWS or Azure cloud in less than two hours.

What are the benefits of running an Oracle RAC database with SkyCluster in a public cloud?

Public cloud uptime SLA covers only VM instance uptime. It does not cover software or OS patching, crashes, or corruption. SkyCluster with Oracle RAC provides true database high availability with active-active redundancy between two or more database node VMs. If zero RTO and zero RPO are your targets then you should look at running SkyCluster with Oracle RAC.

Does SkyCluster provide an alternative to Oracle RAC?

No, SkyCluster does not replace or emulate any part of the RAC software stack. SkyCluster provides storage, network, and automation capabilities for running Oracle RAC in public clouds.

How much performance overhead does SkyCluster create?

Compared to a single-instance database, a RAC database has overhead for communication and data mirroring between the nodes. However, clustering adds CPU, memory, and disk resources that speed up parallel operations. The SkyCluster software itself consumes negligible amount of system resources.

Can a database cluster in the cloud match performance of our on-premises cluster?

Testing performed at FlashGrid and by our customers demonstrated performance levels matching or exceeding performance of high-end on-premises systems. See Performance Considerations section in the whitepapers for AWS and Azure. Our engineers can help you analyze your application performance needs and size the database cluster accordingly.

What is the maximum database size supported on SkyCluster?

The SkyCluster architecture does not impose any strict limits on the database size. With 2 or 3 hyper-converged nodes up to 100 TB is practical. 100’s TB are possible with separate storage nodes.

How many RAC nodes per cluster can be supported?

The SkyCluster architecture does not impose strict limits on the number of RAC nodes. In most cases we recommend two or three nodes. To reduce network overhead we recommend increasing the size of the nodes (up to 224 cores) before adding more nodes. 2+2 redundancy across two availability zones may be used for extra HA. Clusters with 4+ nodes are possible for extra-large capacities.

How can we migrate our data from on-premises to the cloud?

The migration process is similar to migrating a database between two datacenters. Depending on the size of the database and tolerable downtime, you can use one of the regular migration tools, such as RMAN backup/restore, export/import, or DataGuard replication.

Which public clouds are supported by SkyCluster?

AWS, Microsoft Azure, and GCP clouds, including the Government Cloud regions, are fully validated and supported. Contact us if you need to use a different public cloud.

What Oracle Database versions are supported?

Oracle Database versions 19c, 18c, 12.2, 12.1, and 11.2 are supported. We test with the latest PSUs / RUs as they are released.

Which operating systems are supported?

For database nodes, Oracle Linux 7 or Red Hat Enterprise Linux 7. Application servers and other database clients can run on any operating systems, including Linux and Windows.

How does SkyCluster compare to RAC on VMware Cloud on AWS?

Please see a feature-by-feature comparison of the two solutions.

How do we purchase SkyCluster licenses and support?

SkyCluster is deployed through AWS Marketplace, Azure Marketplace, or GCP Marketplace respectively. The marketplace software fees include SkyCluster software license and technical support.

Do we get 24/7 technical support for mission-critical deployments?

Yes. For cloud deployments, FlashGrid Technical Support Services cover the entire infrastructure stack and are included in the Marketplace fees.

Are Oracle licenses included?

Oracle licenses and support must be purchased directly from Oracle.

How can we get help with deploying a cluster in the cloud?

We are happy to guide you through the process. Email us to schedule a screen sharing session with one of our engineers.