Object storage (S3) low-level migration (Part 1)
Scheduled Maintenance Report for Flying Circus
Storage migration has started smoothly. We will keep monitoring progress. This maintenance window is closed now, but the migration will run over the next week and we will finalize with a short announced downtime on 2023-05-22.
Posted May 12, 2023 - 20:33 CEST
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted May 12, 2023 - 20:00 CEST
We are going to migrate the underlying storage format of our object storage (S3-compatible) cluster to improve data durability in case of hardware issues (tolerating up to 3 simultaneous defects instead of previously 2 before experiencing partial data loss).

This will be done in two steps. The first step starting the migration without any downtime (this maintenance) and the second step with a short downtime where our S3 gateways will be shut of for up to 1 hour in the next maintenance. The second step will be performed on 2023-05-22 21:00 (Europe/Berlin), so in a bit more than a week.

The migration has been tested several times in our development and staging clusters and worked reliably. However, as an additional precaution we have created additional backups of all S3 buckets and will update this backup a last time tonight.
Posted May 11, 2023 - 10:29 CEST
This scheduled maintenance affected: VM storage cluster.