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, 2016 by Delphix. All rights reserved. 16# 17 18. $STF_SUITE/include/libtest.shlib 19. $STF_SUITE/tests/functional/nopwrite/nopwrite.shlib 20 21# 22# Description: 23# Verify that nopwrite cannot be enabled on volumes 24# 25# Strategy: 26# 1. Create a clone of a volume that fits the criteria for nopwrite. 27# 2. Overwrite the same blocks from the origin vol and verify that 28# new space is consumed. 29# 30 31verify_runnable "global" 32origin="$TESTPOOL/$TESTVOL" 33clone="$TESTPOOL/clone" 34vol="/dev/zvol/rdsk/$origin" 35volclone="/dev/zvol/rdsk/$clone" 36log_onexit cleanup 37 38function cleanup 39{ 40 datasetexists $origin && log_must zfs destroy -R $origin 41 # No need to recreate the volume as no other tests expect it. 42} 43 44log_assert "nopwrite works on volumes" 45 46log_must zfs set compress=on $origin 47log_must zfs set checksum=sha256 $origin 48dd if=/dev/urandom of=$vol bs=8192 count=4096 conv=notrunc >/dev/null \ 49 2>&1 || log_fail "dd into $orgin failed." 50zfs snapshot $origin@a || log_fail "zfs snap failed" 51log_must zfs clone $origin@a $clone 52log_must zfs set compress=on $clone 53log_must zfs set checksum=sha256 $clone 54dd if=$vol of=$volclone bs=8192 count=4096 conv=notrunc >/dev/null 2>&1 || \ 55 log_fail "dd into $clone failed." 56log_must verify_nopwrite $origin $origin@a $clone 57 58log_pass "nopwrite works on volumes" 59