Author Archives: j mozdzen

Note: There have been many improvements to ceph-volume and ceph-bluestore-tool to simplify the process of DB/WAL migration. A newer article describes the process for a cephadm managed cluster: Cephadm: migrate block.db/block.wal to new device Hence this post can be considered … Continue reading →

During an attempt to migrate some OSDs’ BlueStore RocksDB to a different block device, we noticed (previously undetected) fatal read errors on the existing RocksDB. The only way to recover from this situation is to remove the OSD and rebuild … Continue reading →