#!/usr/bin/ksh # # This file and its contents are supplied under the terms of the # Common Development and Distribution License ("CDDL"), version 1.0. # You may only use this file in accordance with the terms of version # 1.0 of the CDDL. # # A full copy of the text of the CDDL should have accompanied this # source. A copy of the CDDL is also available via the Internet at # http://www.illumos.org/license/CDDL. # # # Copyright (c) 2012, 2016 by Delphix. All rights reserved. # . $STF_SUITE/include/libtest.shlib . $STF_SUITE/tests/functional/nopwrite/nopwrite.shlib # # Description: # Verify that nopwrite cannot be enabled on volumes # # Strategy: # 1. Create a clone of a volume that fits the criteria for nopwrite. # 2. Overwrite the same blocks from the origin vol and verify that # new space is consumed. # verify_runnable "global" origin="$TESTPOOL/$TESTVOL" clone="$TESTPOOL/clone" vol="/dev/zvol/rdsk/$origin" volclone="/dev/zvol/rdsk/$clone" log_onexit cleanup function cleanup { datasetexists $origin && log_must zfs destroy -R $origin # No need to recreate the volume as no other tests expect it. } log_assert "nopwrite works on volumes" log_must zfs set compress=on $origin log_must zfs set checksum=sha256 $origin dd if=/dev/urandom of=$vol bs=8192 count=4096 conv=notrunc >/dev/null \ 2>&1 || log_fail "dd into $orgin failed." zfs snapshot $origin@a || log_fail "zfs snap failed" log_must zfs clone $origin@a $clone log_must zfs set compress=on $clone log_must zfs set checksum=sha256 $clone dd if=$vol of=$volclone bs=8192 count=4096 conv=notrunc >/dev/null 2>&1 || \ log_fail "dd into $clone failed." log_must verify_nopwrite $origin $origin@a $clone log_pass "nopwrite works on volumes"