1#!/bin/ksh -p
2#
3# CDDL HEADER START
4#
5# This file and its contents are supplied under the terms of the
6# Common Development and Distribution License ("CDDL"), version 1.0.
7# You may only use this file in accordance with the terms of version
8# 1.0 of the CDDL.
9#
10# A full copy of the text of the CDDL should have accompanied this
11# source.  A copy of the CDDL is also available via the Internet at
12# http://www.illumos.org/license/CDDL.
13#
14# CDDL HEADER END
15#
16
17#
18# Copyright (c) 2019 by Tim Chase. All rights reserved.
19# Copyright (c) 2019 Lawrence Livermore National Security, LLC.
20# Copyright 2019 Joyent, Inc.
21#
22
23. $STF_SUITE/include/libtest.shlib
24. $STF_SUITE/tests/functional/trim/trim.kshlib
25. $STF_SUITE/tests/functional/trim/trim.cfg
26
27#
28# DESCRIPTION:
29#	Verify automatic trim pool data integrity.
30#
31# STRATEGY:
32#	1. Create a pool on sparse file vdevs to trim.
33#	2. Set autotrim=on to enable asynchronous pool trimming.
34#	3. Generate some interesting pool data which can be trimmed.
35#	4. Verify trim IOs of the expected type were issued for the pool.
36#	5. Verify data integrity of the pool after trim.
37#	6. Repeat test for striped, mirrored, and RAIDZ pools.
38
39verify_runnable "global"
40
41log_assert "Set 'autotrim=on' pool property verify pool data integrity"
42
43function cleanup
44{
45	if poolexists $TESTPOOL; then
46		destroy_pool $TESTPOOL
47	fi
48
49	log_must rm -f $TRIM_VDEVS
50
51	log_must set_tunable32 zfs_trim_extent_bytes_min $trim_extent_bytes_min
52	log_must set_tunable32 zfs_trim_txg_batch $trim_txg_batch
53}
54log_onexit cleanup
55
56# Minimum trim size is decreased to verify all trim sizes.
57typeset trim_extent_bytes_min=$(get_tunable zfs_trim_extent_bytes_min)
58log_must set_tunable32 zfs_trim_extent_bytes_min 4096
59
60# Reduced zfs_trim_txg_batch to make trimming more frequent.
61typeset trim_txg_batch=$(get_tunable zfs_trim_txg_batch)
62log_must set_tunable32 zfs_trim_txg_batch 8
63
64for type in "" "mirror" "raidz" "raidz2" "raidz3"; do
65	log_must truncate -s 1G $TRIM_VDEVS
66
67	log_must zpool create -f $TESTPOOL $type $TRIM_VDEVS
68	log_must zpool set autotrim=on $TESTPOOL
69
70	# Add and remove data from the pool in a random fashion in order
71	# to generate a variety of interesting ranges to be auto trimmed.
72	for n in {0..10}; do
73		dir="/$TESTPOOL/autotrim-$((RANDOM % 5))"
74		filesize=$((4096 + ((RANDOM * 691) % 131072) ))
75		log_must rm -rf $dir
76		log_must fill_fs $dir 10 10 $filesize 1 R
77		sync_all_pools
78	done
79	log_must du -hs /$TESTPOOL
80
81	verify_trim_io $TESTPOOL "ind" 10
82	verify_pool $TESTPOOL
83
84	log_must zpool destroy $TESTPOOL
85	log_must rm -f $TRIM_VDEVS
86done
87
88log_pass "Automatic trim successfully validated"
89