4 ms·
Good article. > EBS has automated backups and recovery built in and high uptime guarantees, so we don’t feel that we’ve missed out on any of the reliability gu
by time0ut 3y ago
Good article.
> EBS has automated backups and recovery built in and high uptime guarantees, so we don’t feel that we’ve missed out on any of the reliability guarantees that Aurora offered.
It may not matter for their use case, but I don't believe this is accurate in a general sense. EBS volumes are local to an availability zone while Aurora's storage is replicated across a quorum of AZs [0]. If a region loses an AZ, the database instance can be failed over to a healthy one with little downtime. This has only happened to me a couple times over the past three years, but it was pretty seamless and things were back on track pretty fast.
I didn't see anything in the article about addressing availability if there is an AZ outage. It may simply not matter or maybe they have solved for it. Could be a good topic for a follow up article.
[0] https://aws.amazon.com/blogs/database/introducing-the-aurora-storage-engine/ https://aws.amazon.com/blogs/database/introducing-the-aurora...