MinIO

Breaking Changes in MinIO dataformat

MinIO Package Release 2022.10.24-16 is the latest that supports the FS (FileSystem) data mode. Any MinIO version starting at 2022-10-29T06-21-33Z does not support this format anymore.

Existing minio data structures in FS format must be manually migrated as documented in Migrate from Gateway or Filesystem Mode.

To check if you're affected by this change:

• check your buckets manually by looking into each folder on your diskstation. If there is exactly a single file per S3 object you need to migrate your data.
• check the format in the file format.json located in the .minio.sys folder. If the file has an entry "format": "fs" you need to migrate your data.

Otherwise you're already running a single-node single-drive deployment (format is xl or xl-single) and can upgrade to the new MinIO package in future without a migration.

An automated migration is not available.

For a regular user it is suggested to run an instance of MinIO on a separate system and migrate your data to this new instance. This system could be a desktop, single board computer or a server. If possible you can mount the storage from your diskstation over the network and use it directly during the migration process. After a successful migration replace the data of your current MinIO installation on your diskstation. Please stop MinIO before replacing your data and restart it afterwards.