xref: /illumos-gate/usr/src/test/zfs-tests/tests/functional/nopwrite/nopwrite_volume.ksh (revision 0250c53ad267726f2438e3c6556199a0bbf588a2)
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