TEST NAME

dd - disk I/O stress test

SYNOPSIS

sh runtests disk_slice

DESCRIPTION

dd performs read and write tests on disk_slice. The read test reads from disk_slice repeatedly, using different block sizes on both raw and block devices. The test then writes to /dev/null.

The write test writes to disk_slice from /dev/zero repeatedly, using different block sizes on both raw and block devices.

CAUTION: Specify an unused slice for disk_slice. All data on disk_slice will be lost.

OUTPUT

Test results are output to the screen.

DURATION

24 hours

POSSIBLE CONCURRENT TESTS

This test can run concurrently with CON5, cdrom, and fs_stress.

EXAMPLES

# sh runtests c2t1d0s7

REFERENCES

dd(1M)

Copyright 2005 Sun Microsystems, Inc. All rights reserved.