Exer_Read - DEC 4000 AXP Service Manual

3.1.7 exer_read

The command tests a disk by performing random reads of 2048 bytes
exer_read
on one or more devices. The exercisers are run in the background and nothing is
displayed unless an error occurs.
The tests continue until one of the following conditions occurs:
1. All blocks on the device have been read for a passcount of d_passes (default is
1).
2. The exer_read process has been terminated via the
commands, or Ctrl/C.
3. The specified time has elapsed.
To terminate the read tests, enter Ctrl/C, or use the
an individual diagnostic or the
Use the display to determine the process ID when killing an
show_status
individual diagnostic test.
Synopsis:
exer_read [-sec seconds] [device_name device_name . . . ]
Arguments:
[device_name] One or more device names to be tested. The default is du*.* dk*.* to test
all DSSI and SCSI disks that are on line.
Options:
[-sec seconds] Number of seconds to run exercisers. If you do not enter the number
of seconds, the tests will run until d_passes have completed (d_passes
default is 1).
If you want to test the entire disk, run at least one pass across the
disk. If you do not need to test the entire disk, run the test for 5 or 10
minutes.
3–12 Running System Diagnostics
kill
command to terminate all diagnostics.
kill_diags
or
kill kill_diags
command to terminate