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#
21
22. $STF_SUITE/include/libtest.shlib
23. $STF_SUITE/tests/functional/trim/trim.kshlib
24. $STF_SUITE/tests/functional/trim/trim.cfg
25
26#
27# DESCRIPTION:
28#	Verify automatic trim pool data integrity.
29#
30# STRATEGY:
31#	1. Create a pool on sparse file vdevs to trim.
32#	2. Set autotrim=on to enable asynchronous pool trimming.
33#	3. Generate some interesting pool data which can be trimmed.
34#	4. Verify trim IOs of the expected type were issued for the pool.
35#	5. Verify data integrity of the pool after trim.
36#	6. Repeat test for striped, mirrored, and RAIDZ pools.
37
38verify_runnable "global"
39
40log_assert "Set 'autotrim=on' pool property verify pool data integrity"
41
42function cleanup
43{
44	if poolexists $TESTPOOL; then
45		destroy_pool $TESTPOOL
46	fi
47
48	log_must rm -f $TRIM_VDEVS
49
50	log_must set_tunable64 TRIM_EXTENT_BYTES_MIN $trim_extent_bytes_min
51	log_must set_tunable64 TRIM_TXG_BATCH $trim_txg_batch
52}
53log_onexit cleanup
54
55# Minimum trim size is decreased to verify all trim sizes.
56typeset trim_extent_bytes_min=$(get_tunable TRIM_EXTENT_BYTES_MIN)
57log_must set_tunable64 TRIM_EXTENT_BYTES_MIN 4096
58
59# Reduced TRIM_TXG_BATCH to make trimming more frequent.
60typeset trim_txg_batch=$(get_tunable TRIM_TXG_BATCH)
61log_must set_tunable64 TRIM_TXG_BATCH 8
62
63for type in "" "mirror" "raidz" "draid"; do
64	log_must truncate -s 1G $TRIM_VDEVS
65
66	log_must zpool create -f $TESTPOOL $type $TRIM_VDEVS
67	log_must zpool set autotrim=on $TESTPOOL
68
69	# Add and remove data from the pool in a random fashion in order
70	# to generate a variety of interesting ranges to be auto trimmed.
71	for n in {0..10}; do
72		dir="/$TESTPOOL/autotrim-$((RANDOM % 5))"
73		filesize=$((4096 + ((RANDOM * 691) % 131072) ))
74		log_must rm -rf $dir
75		log_must fill_fs $dir 10 10 $filesize 1 R
76		sync_all_pools
77	done
78	log_must du -hs /$TESTPOOL
79
80	verify_trim_io $TESTPOOL "ind" 10
81	verify_pool $TESTPOOL
82
83	log_must zpool destroy $TESTPOOL
84	log_must rm -f $TRIM_VDEVS
85done
86
87log_pass "Automatic trim successfully validated"
88