1#!/usr/bin/ksh 2 3# 4# This file and its contents are supplied under the terms of the 5# Common Development and Distribution License ("CDDL"), version 1.0. 6# You may only use this file in accordance with the terms of version 7# 1.0 of the CDDL. 8# 9# A full copy of the text of the CDDL should have accompanied this 10# source. A copy of the CDDL is also available via the Internet at 11# http://www.illumos.org/license/CDDL. 12# 13 14# 15# Copyright (c) 2012 by Delphix. All rights reserved. 16# 17 18. $STF_SUITE/include/libtest.shlib 19. $STF_SUITE/tests/functional/nopwrite/nopwrite.shlib 20 21# 22# Description: 23# Verify that nopwrite is not enabled if the copies property changes 24# 25# Strategy: 26# 1. Create a clone with copies set higher than the origin fs 27# 2. Verify that nopwrite is in use. 28# 3. Repeat with the number of copies decreased. 29# 30 31verify_runnable "global" 32origin="$TESTPOOL/$TESTFS" 33log_onexit cleanup 34 35function cleanup 36{ 37 datasetexists $origin && log_must $ZFS destroy -R $origin 38 log_must $ZFS create -o mountpoint=$TESTDIR $origin 39} 40 41log_assert "nopwrite requires copies property to remain constant" 42 43# Verify nopwrite is disabled with increased redundancy 44log_must $ZFS set compress=on $origin 45log_must $ZFS set checksum=sha256 $origin 46$DD if=/dev/urandom of=$TESTDIR/file bs=1024k count=$MEGS conv=notrunc \ 47 >/dev/null 2>&1 || log_fail "dd into $TESTDIR/file failed." 48$ZFS snapshot $origin@a || log_fail "zfs snap failed" 49log_must $ZFS clone $origin@a $origin/clone 50$ZFS set copies=3 $origin/clone 51$DD if=/$TESTDIR/file of=/$TESTDIR/clone/file bs=1024k count=$MEGS \ 52 conv=notrunc >/dev/null 2>&1 || log_fail "dd failed." 53log_mustnot verify_nopwrite $origin $origin@a $origin/clone 54 55# Verify nopwrite is disabled with decreased redundancy 56$ZFS destroy -R $origin || log_fail "Couldn't destroy $origin" 57$ZFS create -o mountpoint=$TESTDIR $origin || \ 58 log_fail "Couldn't recreate $origin" 59log_must $ZFS set compress=on $origin 60log_must $ZFS set copies=3 $origin 61log_must $ZFS set checksum=sha256 $origin 62$DD if=/dev/urandom of=$TESTDIR/file bs=1024k count=$MEGS conv=notrunc \ 63 >/dev/null 2>&1 || log_fail "dd into $TESTDIR/file failed." 64$ZFS snapshot $origin@a || log_fail "zfs snap failed" 65log_must $ZFS clone $origin@a $origin/clone 66$ZFS set copies=1 $origin/clone 67$DD if=/$TESTDIR/file of=/$TESTDIR/clone/file bs=1024k count=$MEGS \ 68 conv=notrunc >/dev/null 2>&1 || log_fail "dd failed." 69log_mustnot verify_nopwrite $origin $origin@a $origin/clone 70 71log_pass "nopwrite requires copies property to remain constant" 72