rpk topic describe-storage

The summary section contains general information about the topic, the cloud storage mode (one of disabled, write_only, read_only, full, read_replica, cloud_topic, cloud_topic_read_replica, and tiered_cloud_topic), and the delta in milliseconds since the last upload of either the partition manifest or a segment. The last upload delta is not shown for cloud_topic and cloud_topic_read_replica topics.

The offset section contains the start and last offsets (inclusive) per partition of data available in both the cloud and on local disk.

For tiered storage topics, the size section contains the total bytes per partition in the cloud and on local disk, the total size of the log of each partition (excluding cloud and local overlap), and the number of segments in the cloud and on local disk. The cloud segment count does not include segments queued for deletion.

For cloud topics, the size section shows the local log size, the L0 (level zero) and L1 (level one) byte breakdown, the total bytes, and the number of L1 extents. For tiered_cloud_topic, the local segment count is also shown.

The sync section contains the state of cloud synchronization: milliseconds since the last upload of the partition manifest, milliseconds since the last segment upload, milliseconds since the last manifest sync (for read replicas), and whether the remote metadata has a pending update to include all uploaded segments.