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) 2020, George Amanakis. All rights reserved. 19# 20 21. $STF_SUITE/include/libtest.shlib 22. $STF_SUITE/tests/functional/l2arc/l2arc.cfg 23. $STF_SUITE/tests/functional/cli_root/zfs_load-key/zfs_load-key_common.kshlib 24 25# 26# DESCRIPTION: 27# Persistent L2ARC with an encrypted ZFS file system succeeds 28# 29# STRATEGY: 30# 1. Create pool with a cache device. 31# 2. Create a an encrypted ZFS file system. 32# 3. Create a random file in the encyrpted file system and random 33# read for 10 sec. 34# 4. Export pool. 35# 5. Read the amount of log blocks written from the header of the 36# L2ARC device. 37# 5. Import pool. 38# 6. Mount the encypted ZFS file system. 39# 7. Read the amount of log blocks rebuilt in arcstats and compare to 40# (5). 41# 8. Check if the labels of the L2ARC device are intact. 42# 43# * We can predict the minimum bytes of L2ARC restored if we subtract 44# from the effective size of the cache device the bytes l2arc_evict() 45# evicts: 46# l2: L2ARC device size - VDEV_LABEL_START_SIZE - l2ad_dev_hdr_asize 47# wr_sz: l2arc_write_max + l2arc_write_boost (worst case) 48# blk_overhead: wr_sz / SPA_MINBLOCKSIZE / (l2 / SPA_MAXBLOCKSIZE) * 49# sizeof (l2arc_log_blk_phys_t) 50# min restored size: l2 - (wr_sz + blk_overhead) 51# 52 53verify_runnable "global" 54 55log_assert "Persistent L2ARC with an encrypted ZFS file system succeeds." 56 57function cleanup 58{ 59 if poolexists $TESTPOOL ; then 60 destroy_pool $TESTPOOL 61 fi 62 63 log_must set_tunable32 l2arc_noprefetch $noprefetch 64 log_must set_tunable32 l2arc_rebuild_blocks_min_l2size \ 65 $rebuild_blocks_min_l2size 66} 67log_onexit cleanup 68 69# l2arc_noprefetch is set to 0 to let L2ARC handle prefetches 70typeset noprefetch=$(get_tunable l2arc_noprefetch) 71typeset rebuild_blocks_min_l2size=$(get_tunable l2arc_rebuild_blocks_min_l2size) 72log_must set_tunable32 l2arc_noprefetch 0 73log_must set_tunable32 l2arc_rebuild_blocks_min_l2size 0 74 75typeset fill_mb=800 76typeset cache_sz=$(( floor($fill_mb / 2) )) 77export FILE_SIZE=$(( floor($fill_mb / $NUMJOBS) ))M 78 79log_must truncate -s ${cache_sz}M $VDEV_CACHE 80 81log_must zpool create -f $TESTPOOL $VDEV cache $VDEV_CACHE 82 83log_must eval "echo $PASSPHRASE | zfs create -o encryption=on" \ 84 "-o keyformat=passphrase $TESTPOOL/$TESTFS1" 85 86log_must fio $FIO_SCRIPTS/mkfiles.fio 87log_must fio $FIO_SCRIPTS/random_reads.fio 88 89arcstat_quiescence_noecho l2_size 90log_must zpool export $TESTPOOL 91arcstat_quiescence_noecho l2_feeds 92 93typeset l2_dh_log_blk=$(zdb -l $VDEV_CACHE | grep log_blk_count | \ 94 awk '{print $2}') 95 96typeset l2_rebuild_log_blk_start=$(get_arcstat l2_rebuild_log_blks) 97 98log_must zpool import -d $VDIR $TESTPOOL 99log_must eval "echo $PASSPHRASE | zfs mount -l $TESTPOOL/$TESTFS1" 100arcstat_quiescence_noecho l2_size 101 102typeset l2_rebuild_log_blk_end=$(arcstat_quiescence_echo l2_rebuild_log_blks) 103 104log_must test $l2_dh_log_blk -eq $(( $l2_rebuild_log_blk_end - \ 105 $l2_rebuild_log_blk_start )) 106log_must test $l2_dh_log_blk -gt 0 107 108log_must zpool offline $TESTPOOL $VDEV_CACHE 109arcstat_quiescence_noecho l2_size 110 111log_must zdb -lq $VDEV_CACHE 112 113log_must zpool destroy -f $TESTPOOL 114 115log_pass "Persistent L2ARC with an encrypted ZFS file system succeeds." 116