| #!/bin/ksh -p |
| # |
| # 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 2016 Nexenta Systems, Inc. |
| # Copyright (c) 2019 by Lawrence Livermore National Security, LLC. |
| # |
| |
| . $STF_SUITE/tests/functional/cli_root/zpool_labelclear/labelclear.cfg |
| |
| # DESCRIPTION: |
| # Check that `zpool labelclear` only clears valid labels. Expected |
| # label offsets which do not contain intact labels are left untouched. |
| # |
| # STRATEGY: |
| # 1. Create a pool with primary, log, spare and cache devices. |
| # 2. Export the pool. |
| # 3. Write a known pattern over the first two device labels. |
| # 4. Verify with zdb that only the last two device labels are intact. |
| # 5. Verify the pool could be imported using those labels. |
| # 6. Run `zpool labelclear` to destroy those last two labels. |
| # 7. Verify the pool can no longer be found; let alone imported. |
| # 8. Verify the pattern is intact to confirm `zpool labelclear` did |
| # not write to first two label offsets. |
| # 9. Verify that no valid label remain. |
| # |
| |
| verify_runnable "global" |
| |
| function cleanup |
| { |
| poolexists $TESTPOOL && destroy_pool $TESTPOOL |
| rm -f $PATTERN_FILE $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4 |
| } |
| |
| log_onexit cleanup |
| log_assert "zpool labelclear will only clear valid labels" |
| |
| PATTERN_FILE=$TEST_BASE_DIR/pattern |
| |
| DEVICE1="$TEST_BASE_DIR/device-1" |
| DEVICE2="$TEST_BASE_DIR/device-2" |
| DEVICE3="$TEST_BASE_DIR/device-3" |
| DEVICE4="$TEST_BASE_DIR/device-4" |
| |
| log_must dd if=/dev/urandom of=$PATTERN_FILE bs=1048576 count=4 |
| |
| log_must truncate -s $SPA_MINDEVSIZE $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4 |
| |
| log_must zpool create -O mountpoint=none -f $TESTPOOL $DEVICE1 \ |
| log $DEVICE2 cache $DEVICE3 spare $DEVICE4 |
| log_must zpool export $TESTPOOL |
| |
| # Overwrite the first 4M of each device and verify the expected labels. |
| for dev in $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4; do |
| dd if=$PATTERN_FILE of=$dev bs=1048576 conv=notrunc |
| log_must eval "zdb -l $dev | grep 'labels = 2 3'" |
| done |
| |
| # Verify the pool could be imported using those labels. |
| log_must eval "zpool import -d $TEST_BASE_DIR | grep $TESTPOOL" |
| |
| # Verify the last two labels on each vdev can be cleared. |
| for dev in $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4; do |
| log_must zpool labelclear -f $dev |
| done |
| |
| # Verify there is no longer a pool which can be imported. |
| log_mustnot eval "zpool import -d $TEST_BASE_DIR | grep $TESTPOOL" |
| |
| # Verify the original pattern over the first two labels is intact |
| for dev in $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4; do |
| log_must cmp -n $((4 * 1048576)) $dev $PATTERN_FILE |
| log_mustnot zdb -lq $dev |
| done |
| |
| # Verify an error is reported when there are no labels to clear. |
| for dev in $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4; do |
| log_mustnot zpool labelclear -f $dev |
| done |
| |
| log_pass "zpool labelclear will only clear valid labels" |