“Disk I/O Checks” reports the total number of disk I/O checks and the number of checks returning I/O.
Disk I/O Checks Total Disk I/O Checks 171839.7 4233.0 103103833 n/a Checks Returning I/O 31783.1 782.9 19069887 18.5 % Avg Disk I/Os Returned n/a n/a 0.01722 n/a
Checks Returning
I/O – number of actual checks.
Avg Disk I/Os Returned – percentage
of Checks Returning I/O that
resulted in one or more completed IOs.
