ndbinfo: The NDB Cluster Information Database Node ID of this node Thread ID of this LDM thread Milliseconds since this reporting period ended Milliseconds elapsed in this reporting period Number of bytes written to disk by local checkpoints and backup processes during this period Number of bytes written to REDO log during this period Actual speed of disk writes per LDM thread (base data) The  disk_write_speed_aggregate  table provides aggregated information about the speed of disk writes during LCP, backup, and restore operations. The  disk_write_speed_aggregate  table contains the following columns: Node ID of this node Thread ID of this LDM thread Number of bytes written to disk by backup and LCP processes in the last second Number of bytes written to REDO log in the last second Number of bytes written to disk by backup and LCP processes per second, averaged over the last 10 seconds Number of bytes written to REDO log per second, averaged over the last 10 seconds 4549 • std_dev_backup_lcp_speed_last_10sec • redo_speed_last_10sec • backup_lcp_speed_last_10sec • redo_speed_last_sec • backup_lcp_speed_last_sec • thr_no • node_id • target_disk_write_speed • redo_bytes_written • backup_lcp_bytes_written • millis_passed • millis_ago • thr_no 23.5.14.25 The ndbinfo disk_write_speed_aggregate Table