I/O Operations by File

Displays information about I/O activity, organized by file.

PROMON I/O Operations by File Activity display

The following shows a sample I/O Operations by File Activity display.

10/18/06        Activity: I/O Operations by File
12:30:13        10/18/06 12:14 to 10/18/06 12:15 (11 sec)

                                 Total        Per Min     Per Sec     Per Tx
/scratch/shannon/101B/sep25.db
Reads                                3         16          0.27         0.00
Writes                               0          0          0.00         0.00
Extends                              0          0          0.00         0.00

                                 Total        Per Min     Per Sec     Per Tx
/scratch/shannon/101B/sep25.b1
Reads                               15         82          1.36         0.00
Writes                               1          5          0.09         0.00
Extends                              0          0          0.00         0.00

                                 Total        Per Min     Per Sec     Per Tx
/scratch/shannon/101B/sep25.d1
Reads                               25         136         2.27         0.00
Writes                               3          16          0.27        0.00
Extends                              0           0          0.00        0.00

                                 Total        Per Min     Per Sec     Per Tx
/scratch/shannon/101B/sep25_7.d1
Reads                                1         5           0.09         0.00
Writes                               0         0           0.00         0.00
Extends                              0         0           0.00         0.00

Enter <return> for more, A, L, R, S, U, Z, P, T, or X (? for help):

For each file, the display lists the following types of I/O operations:

  • Reads — The number of read operations performed on the file
  • Writes — The number of write operations performed on the file
  • Extends — The number of extend operations performed on the file