105 lines
3.2 KiB
Bash
Executable File
105 lines
3.2 KiB
Bash
Executable File
#! /bin/ksh -p
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#
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# CDDL HEADER START
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#
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# This file and its contents are supplied under the terms of the
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# Common Development and Distribution License ("CDDL"), version 1.0.
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# You may only use this file in accordance with the terms of version
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# 1.0 of the CDDL.
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#
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# A full copy of the text of the CDDL should have accompanied this
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# source. A copy of the CDDL is also available via the Internet at
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# http://www.illumos.org/license/CDDL.
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#
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# CDDL HEADER END
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#
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#
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# Copyright (c) 2014, 2017 by Delphix. All rights reserved.
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# Copyright (c) 2018 by Lawrence Livermore National Security, LLC.
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#
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. $STF_SUITE/include/libtest.shlib
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. $STF_SUITE/tests/functional/removal/removal.kshlib
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#
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# DESCRIPTION:
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#
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# This test ensures that even when child vdevs are unavailable the
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# device removal process copies from readable source children to
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# writable destination children. This may be different than the
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# default mapping which preferentially pairs up source and destination
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# child vdevs based on their child ids.
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#
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# Default Mapping:
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# mirror-0 mirror-1
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# DISK0 (child 0) ------> DISK2 (child 0)
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# DISK1 (child 1) ------> DISK3 (child 1)
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#
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# We want to setup a scenario where the default mapping would make
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# it impossible to copy any data during the removal process. This
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# is done by faulting both the mirror-0 (child 0) source vdev and
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# mirror-1 (child 1) destination vdev. As shown below the default
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# mapping cannot be used due to the FAULTED vdevs. Verify that an
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# alternate mapping is selected and all the readable data is copied.
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#
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# Default Mapping (BAD):
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# mirror-0 mirror-1
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# DISK0 (FAULTED) ------> DISK2
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# DISK1 ----------------> DISK3 (FAULTED)
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#
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# Required Mapping (GOOD):
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# mirror-0 mirror-1
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# DISK0 (FAULTED) +---> DISK2
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# DISK1 ------------+ DISK3 (FAULTED)
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#
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# STRATEGY:
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#
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# 1. We create a pool with two top-level mirror vdevs.
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# 2. We write some test data to the pool.
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# 3. We fault two children to force the scenario described above.
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# 4. We remove the mirror-0 device.
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# 5. We verify that the device has been removed and that all of the
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# data is still intact.
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#
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TMPDIR=${TMPDIR:-$TEST_BASE_DIR}
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DISK0=$TMPDIR/dsk0
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DISK1=$TMPDIR/dsk1
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DISK2=$TMPDIR/dsk2
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DISK3=$TMPDIR/dsk3
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log_must truncate -s $MINVDEVSIZE $DISK0 $DISK1
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log_must truncate -s $((MINVDEVSIZE * 4)) $DISK2 $DISK3
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function cleanup
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{
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default_cleanup_noexit
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log_must rm -f $DISK0 $DISK1 $DISK2 $DISK3
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}
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default_setup_noexit "mirror $DISK0 $DISK1 mirror $DISK2 $DISK3"
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log_onexit cleanup
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log_must zpool offline -f $TESTPOOL $DISK0
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log_must zpool offline -f $TESTPOOL $DISK3
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FILE_CONTENTS="Leeloo Dallas mul-ti-pass."
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echo $FILE_CONTENTS >$TESTDIR/$TESTFILE0
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log_must [ "x$(<$TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
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log_must file_write -o create -f $TESTDIR/$TESTFILE1 -b $((2**20)) -c $((2**7))
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sync_pool $TESTPOOL
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log_must zpool remove $TESTPOOL mirror-0
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log_must wait_for_removal $TESTPOOL
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log_mustnot vdevs_in_pool $TESTPOOL mirror-0
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verify_pool $TESTPOOL
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log_must dd if=$TESTDIR/$TESTFILE0 of=/dev/null
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log_must [ "x$(<$TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
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log_must dd if=$TESTDIR/$TESTFILE1 of=/dev/null
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log_pass "Can remove with faulted vdevs"
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