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# Check various pool geometries stripe, mirror, raidz 29# 30# STRATEGY: 31# 1. Create a pool on file vdevs to trim. 32# 2. Fill the pool to a known percentage of capacity. 33# 3. Verify the vdevs contain 75% or more allocated blocks. 34# 4. Remove all files making it possible to trim the entire pool. 35# 5. Manually trim the pool. 36# 6. Wait for trim to issue trim IOs for the free blocks. 37# 7. Verify the disks contain 30% or less allocated blocks. 38# 8. Repeat for test for striped, mirrored, and RAIDZ pools. 39 40verify_runnable "global" 41 42log_assert "Run 'zpool trim' verify pool disks were trimmed" 43 44function cleanup 45{ 46 if poolexists $TESTPOOL; then 47 destroy_pool $TESTPOOL 48 fi 49 50 log_must rm -f $TRIM_VDEVS 51 52 log_must set_tunable64 TRIM_EXTENT_BYTES_MIN $trim_extent_bytes_min 53 log_must set_tunable64 TRIM_TXG_BATCH $trim_txg_batch 54 log_must set_tunable64 VDEV_MIN_MS_COUNT $vdev_min_ms_count 55} 56log_onexit cleanup 57 58# Minimum trim size is decreased to verify all trim sizes. 59typeset trim_extent_bytes_min=$(get_tunable TRIM_EXTENT_BYTES_MIN) 60log_must set_tunable64 TRIM_EXTENT_BYTES_MIN 4096 61 62# Reduced TRIM_TXG_BATCH to make trimming more frequent. 63typeset trim_txg_batch=$(get_tunable TRIM_TXG_BATCH) 64log_must set_tunable64 TRIM_TXG_BATCH 8 65 66# Increased metaslabs to better simulate larger more realistic devices. 67typeset vdev_min_ms_count=$(get_tunable VDEV_MIN_MS_COUNT) 68log_must set_tunable64 VDEV_MIN_MS_COUNT 32 69 70typeset VDEV_MAX_MB=$(( floor(4 * MINVDEVSIZE * 0.75 / 1024 / 1024) )) 71typeset VDEV_MIN_MB=$(( floor(4 * MINVDEVSIZE * 0.30 / 1024 / 1024) )) 72 73for type in "" "mirror" "raidz2" "draid"; do 74 75 if [[ "$type" = "" ]]; then 76 VDEVS="$TRIM_VDEV1" 77 elif [[ "$type" = "mirror" ]]; then 78 VDEVS="$TRIM_VDEV1 $TRIM_VDEV2" 79 elif [[ "$type" = "raidz2" ]]; then 80 VDEVS="$TRIM_VDEV1 $TRIM_VDEV2 $TRIM_VDEV3" 81 elif [[ "$type" = "draid" ]]; then 82 VDEVS="$TRIM_VDEV1 $TRIM_VDEV2 $TRIM_VDEV3 $TRIM_VDEV4" 83 84 # The per-vdev utilization is lower due to the capacity 85 # resilverd for the distributed spare. 86 VDEV_MAX_MB=$(( floor(4 * MINVDEVSIZE * 0.50 / 1024 / 1024) )) 87 fi 88 89 log_must truncate -s $((4 * MINVDEVSIZE)) $VDEVS 90 log_must zpool create -f $TESTPOOL $type $VDEVS 91 92 typeset availspace=$(get_prop available $TESTPOOL) 93 typeset fill_mb=$(( floor(availspace * 0.90 / 1024 / 1024) )) 94 95 # Fill the pool, verify the vdevs are no longer sparse. 96 file_write -o create -f /$TESTPOOL/file -b 1048576 -c $fill_mb -d R 97 sync_pool $TESTPOOL 98 verify_vdevs "-ge" "$VDEV_MAX_MB" $VDEVS 99 100 # Remove the file, issue trim, verify the vdevs are now sparse. 101 log_must rm /$TESTPOOL/file 102 log_must timeout 120 zpool trim -w $TESTPOOL 103 verify_vdevs "-le" "$VDEV_MIN_MB" $VDEVS 104 105 log_must zpool destroy $TESTPOOL 106 log_must rm -f $VDEVS 107done 108 109log_pass "Manual trim successfully shrunk vdevs" 110