4 # This file and its contents are supplied under the terms of the
5 # Common Development and Distribution License ("CDDL"), version 1.0.
6 # You may only use this file in accordance with the terms of version
9 # A full copy of the text of the CDDL should have accompanied this
10 # source. A copy of the CDDL is also available via the Internet at
11 # http://www.illumos.org/license/CDDL.
15 # Copyright (c) 2017 by Lawrence Livermore National Security, LLC.
16 # Copyright (c) 2020 by Delphix. All rights reserved.
19 . $STF_SUITE/include/libtest.shlib
23 # zdb will not produce redundant dumps of uberblocks
26 # 1. Create a pool with two vdevs, A and B
30 # 5. Copy label 1 from vdev A to vdev B
31 # 6. Collect zdb -lu output for vdev B
32 # 7. Verify labels 0 and 1 have unique Uberblocks, but 2 and 3 have none
35 log_assert "Verify zdb produces unique dumps of uberblocks"
40 datasetexists $TESTPOOL && destroy_pool $TESTPOOL
41 for DISK in $DISKS; do
42 zpool labelclear -f $DEV_RDSKDIR/$DISK
45 log_must sysctl kern.geom.debugflags=$saved_debugflags
50 # FreeBSD won't allow writing to an in-use device without this set
51 saved_debugflags=$(sysctl -n kern.geom.debugflags)
52 log_must sysctl kern.geom.debugflags=16
55 verify_runnable "global"
56 verify_disk_count "$DISKS" 2
60 default_mirror_setup_noexit $DISKS
61 DEVS=$(get_pool_devices ${TESTPOOL} ${DEV_RDSKDIR})
62 [[ -n $DEVS ]] && set -A DISK $DEVS
64 log_must zpool offline $TESTPOOL $WHOLE_DISK
65 log_must dd if=/dev/urandom of=$TESTDIR/testfile bs=1K count=2
66 log_must zpool export $TESTPOOL
68 log_must dd if=$DEV_RDSKDIR/${DISK[0]} of=$DEV_RDSKDIR/${DISK[1]} bs=1K count=256 conv=notrunc
70 ubs=$(zdb -lu ${DISK[1]} | grep -e LABEL -e Uberblock -e 'labels = ')
71 log_note "vdev 1: ubs $ubs"
73 ub_dump_counts=$(zdb -lu ${DISK[1]} | \
74 awk ' /LABEL/ {label=$NF; blocks[label]=0};
75 /Uberblock/ {blocks[label]++};
76 END {print blocks[0],blocks[1],blocks[2],blocks[3]}')
77 (( $? != 0)) && log_fail "failed to get ub_dump_counts from DISK[1]"
78 log_note "vdev 1: ub_dump_counts $ub_dump_counts"
80 set -A dump_count $ub_dump_counts
81 for label in 0 1 2 3; do
82 if [[ $label -lt 2 ]]; then
83 [[ ${dump_count[$label]} -eq 0 ]] && \
84 log_fail "zdb incorrectly dumps duplicate uberblocks"
86 [[ ${dump_count[$label]} -ne 0 ]] && \
87 log_fail "zdb incorrectly dumps duplicate uberblocks"
93 log_pass "zdb produces unique dumps of uberblocks"