SIOS DataKeeper Cluster Edition emerged as the logical choice because it was available on the AWS Marketplace, which assured it was proven to operate reliably in the AWS cloud. And because it did not use software-defined storage, Singer was confident SIOS DataKeeper would be able to deliver the high-performance, synchronous data replication that Lighthouse needed.
Providing High-Performance, Synchronous Data Replication
By using real-time, block-level data mirroring between the local storage attached to all active and standby instances, SIOS DataKeeper overcomes the problems caused by the lack of a SAN in the cloud, including the poor performance that often plagues software-defined storage. The resulting SANless cluster is compatible with Windows Server Failover Clustering, provides continuous monitoring for detecting failures at the application and database levels, and offers configurable policies for failover and failback.
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Lifehouse currently has eight instances in SANless failover clusters to support its MEDITECH application and database. Some of those instances are in different AWS availability zones to protect against widespread disasters. The latency inherent across the long distances involved normally requires the use of asynchronous data replication to avoid delaying commits to the active instance of the database. But the real-time, block level data mirroring technology used in SIOS DataKeeper still enabled Singer to achieve a near-zero recovery point.
Unlike software-defined shared storage, SIOS DataKeeper is purpose-built for high performance high availability, so it came as no surprise to Singer that the cloud-based configuration worked as needed. What was a bit surprising was just how easy the solution has been to implement and operate: “We were able to go from testing to production in a matter of days. Ongoing
maintenance is also quite easy, which we expect will minimize our operational expenditures associated with high availability and disaster recovery. If it were not for SIOS, we might not have been able to migrate our environment to the cloud,” Singer concluded.
“SIOS DataKeeper enabled Lifehouse to take full advantage of the economies of scale afforded in the cloud without sacrificing uptime or performance,” said Frank Jablonski, Vice President, Global Marketing, SIOS Technology. “Migrating mission critical applications to the cloud requires planning for both high availability and performance. SIOS helps companies like Lifehouse ensure both.”
