## 23.5.14.28 The ndbinfo diskstat Table 

node_id: 1 thr_no: 1 block_name: PGMAN thread_name: rep pages_written: 0 pages_written_lcp: 0 pages_read: 1 log_waits: 0 page_requests_direct_return: 4 page_requests_wait_queue: 0 page_requests_wait_io: 1 1 row in set (0.01 sec) 

The diskstat  table provides information about writes to Disk Data tablespaces during the past 1 second. 

The diskstat  table contains the following columns: 

• node_id 

Node ID of this node 

• block_instance 

ID of reporting instance of PGMAN 

• pages_made_dirty 

Number of pages made dirty during the past second 

• reads_issued 

Reads issued during the past second 

• reads_completed 

Reads completed during the past second 

• writes_issued 

Writes issued during the past second 

• writes_completed 

Writes completed during the past second 

• log_writes_issued 

Number of times a page write has required a log write during the past second 

• log_writes_completed 

Number of log writes completed during the last second 

• get_page_calls_issued 

Number of get_page()  calls issued during the past second 

• get_page_reqs_issued 

