for Oracle RAC on Azure
FlashGrid can be deployed in a variety of configurations. Select one that best suits your specific set of HA, performance, capacity, and cost requirements.
Two RAC nodes
The configuration with two database nodes provides tolerance against failure of a single node. Typically deployed with Es_v3 / Ds_v3 / M / GS-series VMs and Premium SSD storage. Multi-AZ deployment recommended for protection against failure of an entire AZ. Availability Set used in regions that do not yet support AZ.
Three RAC nodes
The configuration with three database nodes provides tolerance against simultaneous failure of 2 nodes. Typically deployed with Es_v3 / Ds_v3 / M / GS-series VMs and Premium SSD storage. Multi-AZ deployment recommended for protection against failure of an entire AZ. Availability Set used in regions that do not yet support AZ.
Extreme performance with local SSD
Applications that require ultra-high storage read performance will benefit from using local SSDs with 22 GB/s throughput per node and 3.4M IOPS per node. FlashGrid Read-Local Technology eliminates storage read overhead and makes the full throughput available to your database. Ls_v3 VM-series provide up to 19 TB of local SSD capacity per server. FlashGrid Storage Fabric provides mechanisms for ensuring persistence of the data placed on the local SSDs by maintaining a mirrored copy on Premium SSD and by fully automating data reconstruction in case of a loss of a VM with local SSDs. Premium SSD storage can be added in the same cluster for extra capacity.
FlashGrid Storage Fabric software turns locally attached disks into shared disks accessible from all nodes in the cluster. The sharing is done at the block level with concurrent access from all nodes.
In 2-node or 3-node clusters each database node has a full copy of user data stored on locally attached Premium SSD disks or on local SSDs. FlashGrid Read‑Local™ Technology allows serving all read I/O from the locally attached disks and increases both read and write I/O performance. Read requests avoid the extra network hop, thus reducing the latency and the amount of the network traffic. As a result, more network bandwidth is available for the write I/O traffic.
FlashGrid Cloud Area Network™ (CLAN) enables running high-speed clustered applications in public clouds or multi-datacenter environments with the efficiency and control of a Local Area Network.
Network capabilities enabled by FlashGrid CLAN on Azure:
FlashGrid allows you to right-size your cluster at the start and resize later as needed. No need to over-provision in advance for future growth.
“FlashGrid 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