Between waves of pandemics, hurricanes, and wildfires, you don’t want cloud infrastructure including to your checklist of worries this yr. Happily, there has by no means been a greater time to make sure your Azure deployments keep resilient. Availability zones are among the finest methods to mitigate dangers from outages and disasters. With that in thoughts, we’re asserting the preview for zone redundancy in Azure Cache for Redis.

Availability Zones on Azure

Azure Availability Zones are geographically remoted datacenter areas inside an Azure area, offering redundant energy, cooling, and networking. By sustaining a bodily separate set of assets with the low latency from remaining in the identical area, Azure Availability Zones present a excessive availability answer that’s essential for companies requiring resiliency and enterprise continuity.

Redundancy choices in Azure Cache for Redis

Azure Cache for Redis is more and more changing into crucial to our clients’ knowledge infrastructure. As a completely managed service, Azure Cache for Redis supplies numerous excessive availability choices. By default, caches in the usual or premium tier have built-in replication with a two-node configuration—a major and a duplicate internet hosting two equivalent copies of your knowledge.

New in preview, Azure Cache for Redis can now assist as much as 4 nodes in a cache distributed throughout a number of availability zones. This replace can considerably improve the supply of your Azure Cache for Redis occasion, supplying you with larger peace of thoughts and hardening your knowledge structure towards surprising disruption.

Excessive Availability for Azure Cache for Redis

The brand new redundancy options ship higher reliability and resiliency. First, this replace expands the full variety of replicas you possibly can create. Now you can implement as much as three reproduction nodes along with the first node. Having extra replicas usually improves resiliency (even when they’re in the identical availability zone) due to the extra nodes backing up the first.

Even with extra replicas, a datacenter-wide outage can nonetheless disrupt your software. That’s why we’re additionally enabling zone redundancy, permitting replicas to be situated in several availability zones. Duplicate nodes might be positioned in a single or a number of availability zones, with failover routinely occurring if wanted throughout availability zones. With Zone Redundancy, your cache can deal with conditions the place the first zone is knocked offline as a result of points like floods, energy outages, and even pure disasters. This will increase availability whereas sustaining the low latency required from a cache.

New zone redundant configuration with an additional replica node located in a separate availability zone.

Zone redundancy is at present solely accessible on the premium tier of Azure Cache for Redis, however it is going to even be accessible on the enterprise and enterprise flash tiers when the preview is launched.

Trade-leading service stage settlement

Azure Cache for Redis already provides an industry-standard 99.9 % service stage settlement (SLA). With the addition of zone redundancy, the supply will increase to a 99.95 % stage, permitting you to satisfy your availability wants whereas holding your software nimble and scalable.

Including zone redundancy to Azure Cache for Redis is an effective way to advertise availability and peace of thoughts throughout turbulent conditions. Learn more in our documentation and provides it a attempt at present.

In case you have any questions or suggestions, please contact us at AzureCache@microsoft.com.



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