#!/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 . $STF_SUITE/tests/functional/nopwrite/nopwrite.shlib # # Description: # Verify that nopwrite is not enabled if the copies property changes # # Strategy: # 1. Create a clone with copies set higher than the origin fs # 2. Verify that nopwrite is in use. # 3. Repeat with the number of copies decreased. # verify_runnable "global" origin="$TESTPOOL/$TESTFS" log_onexit cleanup function cleanup { datasetexists $origin && log_must zfs destroy -R $origin log_must zfs create -o mountpoint=$TESTDIR $origin } log_assert "nopwrite requires copies property to remain constant" # Verify nopwrite is disabled with increased redundancy log_must zfs set compress=on $origin log_must zfs set checksum=sha256 $origin dd if=/dev/urandom of=$TESTDIR/file bs=1024k count=$MEGS conv=notrunc \ >/dev/null 2>&1 || log_fail "dd into $TESTDIR/file failed." zfs snapshot $origin@a || log_fail "zfs snap failed" log_must zfs clone $origin@a $origin/clone zfs set copies=3 $origin/clone dd if=/$TESTDIR/file of=/$TESTDIR/clone/file bs=1024k count=$MEGS \ conv=notrunc >/dev/null 2>&1 || log_fail "dd failed." log_mustnot verify_nopwrite $origin $origin@a $origin/clone # Verify nopwrite is disabled with decreased redundancy zfs destroy -R $origin || log_fail "Couldn't destroy $origin" zfs create -o mountpoint=$TESTDIR $origin || \ log_fail "Couldn't recreate $origin" log_must zfs set compress=on $origin log_must zfs set copies=3 $origin log_must zfs set checksum=sha256 $origin dd if=/dev/urandom of=$TESTDIR/file bs=1024k count=$MEGS conv=notrunc \ >/dev/null 2>&1 || log_fail "dd into $TESTDIR/file failed." zfs snapshot $origin@a || log_fail "zfs snap failed" log_must zfs clone $origin@a $origin/clone zfs set copies=1 $origin/clone dd if=/$TESTDIR/file of=/$TESTDIR/clone/file bs=1024k count=$MEGS \ conv=notrunc >/dev/null 2>&1 || log_fail "dd failed." log_mustnot verify_nopwrite $origin $origin@a $origin/clone log_pass "nopwrite requires copies property to remain constant"