| #!/bin/ksh |
| |
| # |
| # This file and its contents are supplied under the terms of the |
| # Common Development and Distribution License ("CDDL"), version 1.0. |
| # You may only use this file in accordance with the terms of version |
| # 1.0 of the CDDL. |
| # |
| # A full copy of the text of the CDDL should have accompanied this |
| # source. A copy of the CDDL is also available via the Internet at |
| # http://www.illumos.org/license/CDDL. |
| # |
| |
| # |
| # Copyright (c) 2017 by Lawrence Livermore National Security, LLC. |
| # |
| |
| . $STF_SUITE/include/libtest.shlib |
| |
| # |
| # Description: |
| # zdb will not produce redundant dumps of uberblocks |
| # |
| # Strategy: |
| # 1. Create a pool with two vdevs, A and B |
| # 2. Offline vdev A |
| # 3. Do some I/O |
| # 4. Export the pool |
| # 5. Copy label 1 from vdev A to vdev B |
| # 6. Collect zdb -lu output for vdev B |
| # 7. Verify labels 0 and 1 have unique Uberblocks, but 2 and 3 have none |
| # |
| |
| log_assert "Verify zdb produces unique dumps of uberblocks" |
| log_onexit cleanup |
| |
| function cleanup |
| { |
| datasetexists $TESTPOOL && destroy_pool $TESTPOOL |
| for DISK in $DISKS; do |
| zpool labelclear -f $DEV_RDSKDIR/$DISK |
| done |
| } |
| |
| verify_runnable "global" |
| verify_disk_count "$DISKS" 2 |
| set -A DISK $DISKS |
| WHOLE_DISK=${DISK[0]} |
| |
| default_mirror_setup_noexit $DISKS |
| DEVS=$(get_pool_devices ${TESTPOOL} ${DEV_RDSKDIR}) |
| [[ -n $DEVS ]] && set -A DISK $DEVS |
| |
| log_must zpool offline $TESTPOOL ${WHOLE_DISK} |
| log_must dd if=/dev/urandom of=$TESTDIR/testfile bs=1K count=2 |
| log_must zpool export $TESTPOOL |
| |
| log_must dd if=$DEV_RDSKDIR/${DISK[0]} of=$DEV_RDSKDIR/${DISK[1]} bs=1K count=256 conv=notrunc |
| |
| ubs=$(zdb -lu ${DISK[1]} | grep -e LABEL -e Uberblock -e 'labels = ') |
| log_note "vdev 1: ubs $ubs" |
| |
| ub_dump_counts=$(zdb -lu ${DISK[1]} | \ |
| awk ' /LABEL/ {label=$NF; blocks[label]=0}; |
| /Uberblock/ {blocks[label]++}; |
| END {print blocks[0],blocks[1],blocks[2],blocks[3]}') |
| (( $? != 0)) && log_fail "failed to get ub_dump_counts from DISK[1]" |
| log_note "vdev 1: ub_dump_counts $ub_dump_counts" |
| |
| set -A dump_count $ub_dump_counts |
| for label in 0 1 2 3; do |
| if [[ $label -lt 2 ]]; then |
| [[ ${dump_count[$label]} -eq 0 ]] && \ |
| log_fail "zdb incorrectly dumps duplicate uberblocks" |
| else |
| [[ ${dump_count[$label]} -ne 0 ]] && \ |
| log_fail "zdb incorrectly dumps duplicate uberblocks" |
| fi |
| done |
| |
| cleanup |
| |
| log_pass "zdb produces unique dumps of uberblocks" |