FlashGrid
for Oracle RAC on Azure

Engineered Cloud System designed for database high availability
Infrastructure-as-Code deployment with a few mouse clicks
24/7 support for entire infrastructure stack
Recommended by Microsoft Azure for running Oracle RAC

Architecture

Key components

Azure virtual machines
Azure Premium SSD storage and/or local SSD storage
FlashGrid Storage Fabric software
FlashGrid Cloud Area Network software
Oracle Grid Infrastructure software
Oracle RAC database engine

Typical configurations

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.

Shared storage

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.

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Advanced networking

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:
Each type of traffic has its own virtual LAN with a separate virtual NIC, e.g. fg-pub, fg-priv, fg-storage
Negligible performance overhead compared to the raw network
Minimum guaranteed bandwidth allocation for each traffic type while accommodating traffic bursts
Low latency of RAC interconnect in the presence of large volumes of traffic of other types
Multicast support
Transparent connectivity across Availability Zones

High availability

No single point of failure
2, 3, or more active database nodes
2-way or 3-way synchronous data mirroring by ASM
Rolling patches
Multi-AZ combined with FlashGrid Read-Local™ Technology deliver higher availability than on-premises systems without compromising on performance

Flexible performance

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.

CPU resources scalable from 4 to 208 cores per node
Memory scalable up to 11 TB per node
Storage throughput up to millions of IOPS and tens of GB/s

Data encryption

Data at rest encrypted with Azure Storage Service Encryption
Oracle Transparent Data Encryption (TDE) option available

Compatibility

Oracle Database: 19c, 18c, 12.2, 12.1, 11.2
OS: Oracle Linux 7, RHEL 7
Oracle tools: OEM, RMAN, Data Guard, GoldenGate
VM types: Es_v3, Ds_v3, Es_v4, Ds_v4, M, Mv2, and more
All Azure regions, including US Government and China

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