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# Check various pool geometries stripe, mirror, raidz 30# 31# STRATEGY: 32# 1. Create a pool on file vdevs to trim. 33# 2. Fill the pool to a known percentage of capacity. 34# 3. Verify the vdevs contain 75% or more allocated blocks. 35# 4. Remove all files making it possible to trim the entire pool. 36# 5. Manually trim the pool. 37# 6. Wait for trim to issue trim IOs for the free blocks. 38# 7. Verify the disks contain 30% or less allocated blocks. 39# 8. Repeat for test for striped, mirrored, and RAIDZ pools. 40 41verify_runnable "global" 42 43log_assert "Run 'zpool trim' verify pool disks were trimmed" 44 45function cleanup 46{ 47 if poolexists $TESTPOOL; then 48 destroy_pool $TESTPOOL 49 fi 50 51 log_must rm -f $TRIM_VDEVS 52 53 log_must set_tunable32 zfs_trim_extent_bytes_min $trim_extent_bytes_min 54 log_must set_tunable32 zfs_trim_txg_batch $trim_txg_batch 55 log_must set_tunable32 zfs_vdev_min_ms_count $vdev_min_ms_count 56} 57log_onexit cleanup 58 59# Minimum trim size is decreased to verify all trim sizes. 60typeset trim_extent_bytes_min=$(get_tunable zfs_trim_extent_bytes_min) 61log_must set_tunable32 zfs_trim_extent_bytes_min 4096 62 63# Reduced zfs_trim_txg_batch to make trimming more frequent. 64typeset trim_txg_batch=$(get_tunable zfs_trim_txg_batch) 65log_must set_tunable32 zfs_trim_txg_batch 8 66 67# Increased metaslabs to better simulate larger more realistic devices. 68typeset vdev_min_ms_count=$(get_tunable zfs_vdev_min_ms_count) 69log_must set_tunable32 zfs_vdev_min_ms_count 32 70 71typeset VDEV_MAX_MB=$(( floor(4 * MINVDEVSIZE * 0.75 / 1024 / 1024) )) 72typeset VDEV_MIN_MB=$(( floor(4 * MINVDEVSIZE * 0.30 / 1024 / 1024) )) 73 74for type in "" "mirror" "raidz2"; do 75 76 if [[ "$type" = "" ]]; then 77 VDEVS="$TRIM_VDEV1" 78 elif [[ "$type" = "mirror" ]]; then 79 VDEVS="$TRIM_VDEV1 $TRIM_VDEV2" 80 else 81 VDEVS="$TRIM_VDEV1 $TRIM_VDEV2 $TRIM_VDEV3" 82 fi 83 84 log_must truncate -s $((4 * MINVDEVSIZE)) $VDEVS 85 log_must zpool create -f $TESTPOOL $type $VDEVS 86 87 typeset availspace=$(get_prop available $TESTPOOL) 88 typeset fill_mb=$(( floor(availspace * 0.90 / 1024 / 1024) )) 89 90 # Fill the pool, verify the vdevs are no longer sparse. 91 file_write -o create -f /$TESTPOOL/file -b 1048576 -c $fill_mb -d R 92 verify_vdevs "-gt" "$VDEV_MAX_MB" $VDEVS 93 94 # Remove the file, issue trim, verify the vdevs are now sparse. 95 log_must rm /$TESTPOOL/file 96 log_must zpool trim $TESTPOOL 97 wait_trim $TESTPOOL $VDEVS 98 verify_vdevs "-le" "$VDEV_MIN_MB" $VDEVS 99 100 log_must zpool destroy $TESTPOOL 101 log_must rm -f $VDEVS 102done 103 104log_pass "Manual trim successfully shrunk vdevs" 105