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Implement a new type of zfs receive: corrective receive (-c)
This type of recv is used to heal corrupted data when a replica of the data already exists (in the form of a send file for example). With the provided send stream, corrective receive will read from disk blocks described by the WRITE records. When any of the reads come back with ECKSUM we use the data from the corresponding WRITE record to rewrite the corrupted block. Reviewed-by: Paul Dagnelie <pcd@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Paul Zuchowski <pzuchowski@datto.com> Signed-off-by: Alek Pinchuk <apinchuk@axcient.com> Closes #9372
This commit is contained in:
Alek P
@@ -241,7 +241,8 @@ tests = ['zfs_receive_001_pos', 'zfs_receive_002_pos', 'zfs_receive_003_pos',
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'zfs_receive_from_encrypted', 'zfs_receive_to_encrypted',
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'zfs_receive_raw', 'zfs_receive_raw_incremental', 'zfs_receive_-e',
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'zfs_receive_raw_-d', 'zfs_receive_from_zstd', 'zfs_receive_new_props',
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'zfs_receive_-wR-encrypted-mix']
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'zfs_receive_-wR-encrypted-mix', 'zfs_receive_corrective',
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'zfs_receive_compressed_corrective']
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tags = ['functional', 'cli_root', 'zfs_receive']
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[tests/functional/cli_root/zfs_rename]
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@@ -545,6 +545,7 @@ test_recv_new(const char *dataset, int fd)
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fnvlist_add_string(props, "org.openzfs:launch", "September 17th, 2013");
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fnvlist_add_nvlist(optional, "localprops", props);
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fnvlist_add_boolean(optional, "force");
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fnvlist_add_boolean(optional, "heal");
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fnvlist_add_int32(optional, "cleanup_fd", cleanup_fd);
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/*
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@@ -766,6 +766,8 @@ nobase_dist_datadir_zfs_tests_tests_SCRIPTS += \
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functional/cli_root/zfs_receive/zfs_receive_raw.ksh \
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functional/cli_root/zfs_receive/zfs_receive_to_encrypted.ksh \
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functional/cli_root/zfs_receive/zfs_receive_-wR-encrypted-mix.ksh \
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functional/cli_root/zfs_receive/zfs_receive_corrective.ksh \
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functional/cli_root/zfs_receive/zfs_receive_compressed_corrective.ksh \
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functional/cli_root/zfs_rename/cleanup.ksh \
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functional/cli_root/zfs_rename/setup.ksh \
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functional/cli_root/zfs_rename/zfs_rename_001_pos.ksh \
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Executable
+193
@@ -0,0 +1,193 @@
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#!/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) 2019 Datto, Inc. All rights reserved.
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# Copyright (c) 2022 Axcient.
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#
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. $STF_SUITE/include/libtest.shlib
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#
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# DESCRIPTION:
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# OpenZFS should be able to heal data using corrective recv when the send file
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# was generated with the --compressed flag
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#
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# STRATEGY:
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# 0. Create a file, checksum the file to be corrupted then compare it's checksum
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# with the one obtained after healing under different testing scenarios:
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# 1. Test healing (aka corrective) recv from a full send file
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# 2. Test healing recv (aka heal recv) from an incremental send file
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# 3. Test healing recv when compression on-disk is off but source was compressed
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# 4. Test heal recv when compression on-disk is on but source was uncompressed
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# 5. Test heal recv when compression doesn't match between send file and on-disk
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# 6. Test healing recv of an encrypted dataset using an unencrypted send file
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# 7. Test healing recv (on an encrypted dataset) using a raw send file
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# 8. Test healing when specifying destination filesystem only (no snapshot)
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# 9. Test incremental recv aftear healing recv
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#
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verify_runnable "both"
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DISK=${DISKS%% *}
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backup=$TEST_BASE_DIR/backup
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raw_backup=$TEST_BASE_DIR/raw_backup
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ibackup=$TEST_BASE_DIR/ibackup
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unc_backup=$TEST_BASE_DIR/unc_backup
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function cleanup
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{
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log_must rm -f $backup $raw_backup $ibackup $unc_backup
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poolexists $TESTPOOL && destroy_pool $TESTPOOL
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log_must zpool create -f $TESTPOOL $DISK
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}
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function test_corrective_recv
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{
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log_must zpool scrub -w $TESTPOOL
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log_must zpool status -v $TESTPOOL
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log_must eval "zpool status -v $TESTPOOL | \
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grep \"Permanent errors have been detected\""
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# make sure we will read the corruption from disk by flushing the ARC
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log_must zinject -a
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log_must eval "zfs recv -c $1 < $2"
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log_must zpool scrub -w $TESTPOOL
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log_must zpool status -v $TESTPOOL
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log_mustnot eval "zpool status -v $TESTPOOL | \
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grep \"Permanent errors have been detected\""
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typeset cksum=$(md5digest $file)
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[[ "$cksum" == "$checksum" ]] || \
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log_fail "Checksums differ ($cksum != $checksum)"
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}
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log_onexit cleanup
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log_assert "ZFS corrective receive should be able to heal data corruption"
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typeset passphrase="password"
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typeset file="/$TESTPOOL/$TESTFS1/$TESTFILE0"
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log_must eval "poolexists $TESTPOOL && destroy_pool $TESTPOOL"
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log_must zpool create -f -o feature@head_errlog=disabled $TESTPOOL $DISK
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log_must eval "echo $passphrase > /$TESTPOOL/pwd"
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log_must zfs create -o primarycache=none \
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-o atime=off -o compression=lz4 $TESTPOOL/$TESTFS1
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log_must dd if=/dev/urandom of=$file bs=1024 count=1024 oflag=sync
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log_must eval "echo 'aaaaaaaa' >> "$file
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typeset checksum=$(md5digest $file)
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log_must zfs snapshot $TESTPOOL/$TESTFS1@snap1
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# create full send file
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log_must eval "zfs send --compressed $TESTPOOL/$TESTFS1@snap1 > $backup"
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log_must dd if=/dev/urandom of=$file"1" bs=1024 count=1024 oflag=sync
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log_must eval "echo 'bbbbbbbb' >> "$file"1"
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log_must zfs snapshot $TESTPOOL/$TESTFS1@snap2
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# create incremental send file
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log_must eval "zfs send -c -i $TESTPOOL/$TESTFS1@snap1 \
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$TESTPOOL/$TESTFS1@snap2 > $ibackup"
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corrupt_blocks_at_level $file 0
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# test healing recv from a full send file
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test_corrective_recv $TESTPOOL/$TESTFS1@snap1 $backup
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corrupt_blocks_at_level $file"1" 0
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# test healing recv from an incremental send file
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test_corrective_recv $TESTPOOL/$TESTFS1@snap2 $ibackup
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# create new uncompressed dataset using our send file
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log_must eval "zfs recv -o compression=off -o primarycache=none \
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$TESTPOOL/$TESTFS2 < $backup"
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typeset compr=$(get_prop compression $TESTPOOL/$TESTFS2)
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[[ "$compr" == "off" ]] || \
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log_fail "Unexpected compression $compr in recved dataset"
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corrupt_blocks_at_level "/$TESTPOOL/$TESTFS2/$TESTFILE0" 0
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# test healing recv when compression on-disk is off but source was compressed
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test_corrective_recv "$TESTPOOL/$TESTFS2@snap1" $backup
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# create a full sendfile from an uncompressed source
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log_must eval "zfs send --compressed $TESTPOOL/$TESTFS2@snap1 > $unc_backup"
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log_must eval "zfs recv -o compression=gzip -o primarycache=none \
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$TESTPOOL/testfs3 < $unc_backup"
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typeset compr=$(get_prop compression $TESTPOOL/testfs3)
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[[ "$compr" == "gzip" ]] || \
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log_fail "Unexpected compression $compr in recved dataset"
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corrupt_blocks_at_level "/$TESTPOOL/testfs3/$TESTFILE0" 0
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# test healing recv when compression on-disk is on but source was uncompressed
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test_corrective_recv "$TESTPOOL/testfs3@snap1" $unc_backup
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# create new compressed dataset using our send file
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log_must eval "zfs recv -o compression=gzip -o primarycache=none \
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$TESTPOOL/testfs4 < $backup"
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typeset compr=$(get_prop compression $TESTPOOL/testfs4)
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[[ "$compr" == "gzip" ]] || \
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log_fail "Unexpected compression $compr in recved dataset"
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corrupt_blocks_at_level "/$TESTPOOL/testfs4/$TESTFILE0" 0
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# test healing recv when compression doesn't match between send file and on-disk
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test_corrective_recv "$TESTPOOL/testfs4@snap1" $backup
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# create new encrypted (and compressed) dataset using our send file
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log_must eval "zfs recv -o encryption=aes-256-ccm -o keyformat=passphrase \
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-o keylocation=file:///$TESTPOOL/pwd -o primarycache=none \
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$TESTPOOL/testfs5 < $backup"
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typeset encr=$(get_prop encryption $TESTPOOL/testfs5)
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[[ "$encr" == "aes-256-ccm" ]] || \
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log_fail "Unexpected encryption $encr in recved dataset"
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log_must eval "zfs send --raw $TESTPOOL/testfs5@snap1 > $raw_backup"
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log_must eval "zfs send --compressed $TESTPOOL/testfs5@snap1 > $backup"
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corrupt_blocks_at_level "/$TESTPOOL/testfs5/$TESTFILE0" 0
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# test healing recv of an encrypted dataset using an unencrypted send file
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test_corrective_recv "$TESTPOOL/testfs5@snap1" $backup
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corrupt_blocks_at_level "/$TESTPOOL/testfs5/$TESTFILE0" 0
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log_must zfs unmount $TESTPOOL/testfs5
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log_must zfs unload-key $TESTPOOL/testfs5
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# test healing recv (on an encrypted dataset) using a raw send file
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test_corrective_recv "$TESTPOOL/testfs5@snap1" $raw_backup
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# non raw send file healing an encrypted dataset with an unloaded key will fail
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log_mustnot eval "zfs recv -c $TESTPOOL/testfs5@snap1 < $backup"
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log_must zfs rollback -r $TESTPOOL/$TESTFS1@snap1
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corrupt_blocks_at_level $file 0
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# test healing when specifying destination filesystem only (no snapshot)
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test_corrective_recv $TESTPOOL/$TESTFS1 $backup
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# test incremental recv aftear healing recv
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log_must eval "zfs recv $TESTPOOL/$TESTFS1 < $ibackup"
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# test that healing recv can not be combined with incompatible recv options
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log_mustnot eval "zfs recv -h -c $TESTPOOL/$TESTFS1@snap1 < $backup"
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log_mustnot eval "zfs recv -F -c $TESTPOOL/$TESTFS1@snap1 < $backup"
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log_mustnot eval "zfs recv -s -c $TESTPOOL/$TESTFS1@snap1 < $backup"
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log_mustnot eval "zfs recv -u -c $TESTPOOL/$TESTFS1@snap1 < $backup"
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log_mustnot eval "zfs recv -d -c $TESTPOOL/$TESTFS1@snap1 < $backup"
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log_mustnot eval "zfs recv -e -c $TESTPOOL/$TESTFS1@snap1 < $backup"
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# ensure healing recv doesn't work when snap GUIDS don't match
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log_mustnot eval "zfs recv -c $TESTPOOL/testfs5@snap2 < $backup"
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log_mustnot eval "zfs recv -c $TESTPOOL/testfs5 < $backup"
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# test that healing recv doesn't work on non-existing snapshots
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log_mustnot eval "zfs recv -c $TESTPOOL/$TESTFS1@missing < $backup"
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log_pass "OpenZFS corrective recv works for data healing"
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+192
@@ -0,0 +1,192 @@
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#!/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) 2019 Datto, Inc. All rights reserved.
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# Copyright (c) 2022 Axcient.
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#
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. $STF_SUITE/include/libtest.shlib
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#
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# DESCRIPTION:
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# OpenZFS should be able to heal data using corrective recv
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#
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# STRATEGY:
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# 0. Create a file, checksum the file to be corrupted then compare it's checksum
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# with the one obtained after healing under different testing scenarios:
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# 1. Test healing (aka corrective) recv from a full send file
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# 2. Test healing recv (aka heal recv) from an incremental send file
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# 3. Test healing recv when compression on-disk is off but source was compressed
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# 4. Test heal recv when compression on-disk is on but source was uncompressed
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# 5. Test heal recv when compression doesn't match between send file and on-disk
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# 6. Test healing recv of an encrypted dataset using an unencrypted send file
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# 7. Test healing recv (on an encrypted dataset) using a raw send file
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# 8. Test healing when specifying destination filesystem only (no snapshot)
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# 9. Test incremental recv aftear healing recv
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#
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verify_runnable "both"
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DISK=${DISKS%% *}
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backup=$TEST_BASE_DIR/backup
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raw_backup=$TEST_BASE_DIR/raw_backup
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ibackup=$TEST_BASE_DIR/ibackup
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unc_backup=$TEST_BASE_DIR/unc_backup
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function cleanup
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{
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log_must rm -f $backup $raw_backup $ibackup $unc_backup
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poolexists $TESTPOOL && destroy_pool $TESTPOOL
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log_must zpool create -f $TESTPOOL $DISK
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}
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function test_corrective_recv
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{
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log_must zpool scrub -w $TESTPOOL
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log_must zpool status -v $TESTPOOL
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log_must eval "zpool status -v $TESTPOOL | \
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grep \"Permanent errors have been detected\""
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# make sure we will read the corruption from disk by flushing the ARC
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log_must zinject -a
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log_must eval "zfs recv -c $1 < $2"
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log_must zpool scrub -w $TESTPOOL
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log_must zpool status -v $TESTPOOL
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log_mustnot eval "zpool status -v $TESTPOOL | \
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grep \"Permanent errors have been detected\""
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typeset cksum=$(md5digest $file)
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[[ "$cksum" == "$checksum" ]] || \
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log_fail "Checksums differ ($cksum != $checksum)"
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}
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log_onexit cleanup
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log_assert "ZFS corrective receive should be able to heal data corruption"
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typeset passphrase="password"
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typeset file="/$TESTPOOL/$TESTFS1/$TESTFILE0"
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log_must eval "poolexists $TESTPOOL && destroy_pool $TESTPOOL"
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log_must zpool create -f -o feature@head_errlog=disabled $TESTPOOL $DISK
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log_must eval "echo $passphrase > /$TESTPOOL/pwd"
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log_must zfs create -o primarycache=none \
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-o atime=off -o compression=lz4 $TESTPOOL/$TESTFS1
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log_must dd if=/dev/urandom of=$file bs=1024 count=1024 oflag=sync
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log_must eval "echo 'aaaaaaaa' >> "$file
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typeset checksum=$(md5digest $file)
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log_must zfs snapshot $TESTPOOL/$TESTFS1@snap1
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# create full send file
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log_must eval "zfs send $TESTPOOL/$TESTFS1@snap1 > $backup"
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log_must dd if=/dev/urandom of=$file"1" bs=1024 count=1024 oflag=sync
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log_must eval "echo 'bbbbbbbb' >> "$file"1"
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log_must zfs snapshot $TESTPOOL/$TESTFS1@snap2
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# create incremental send file
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log_must eval "zfs send -i $TESTPOOL/$TESTFS1@snap1 \
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$TESTPOOL/$TESTFS1@snap2 > $ibackup"
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corrupt_blocks_at_level $file 0
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# test healing recv from a full send file
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test_corrective_recv $TESTPOOL/$TESTFS1@snap1 $backup
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corrupt_blocks_at_level $file"1" 0
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# test healing recv from an incremental send file
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test_corrective_recv $TESTPOOL/$TESTFS1@snap2 $ibackup
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# create new uncompressed dataset using our send file
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log_must eval "zfs recv -o compression=off -o primarycache=none \
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$TESTPOOL/$TESTFS2 < $backup"
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typeset compr=$(get_prop compression $TESTPOOL/$TESTFS2)
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[[ "$compr" == "off" ]] || \
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log_fail "Unexpected compression $compr in recved dataset"
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corrupt_blocks_at_level "/$TESTPOOL/$TESTFS2/$TESTFILE0" 0
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# test healing recv when compression on-disk is off but source was compressed
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test_corrective_recv "$TESTPOOL/$TESTFS2@snap1" $backup
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# create a full sendfile from an uncompressed source
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log_must eval "zfs send $TESTPOOL/$TESTFS2@snap1 > $unc_backup"
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log_must eval "zfs recv -o compression=gzip -o primarycache=none \
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$TESTPOOL/testfs3 < $unc_backup"
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typeset compr=$(get_prop compression $TESTPOOL/testfs3)
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[[ "$compr" == "gzip" ]] || \
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log_fail "Unexpected compression $compr in recved dataset"
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corrupt_blocks_at_level "/$TESTPOOL/testfs3/$TESTFILE0" 0
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# test healing recv when compression on-disk is on but source was uncompressed
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test_corrective_recv "$TESTPOOL/testfs3@snap1" $unc_backup
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# create new compressed dataset using our send file
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log_must eval "zfs recv -o compression=gzip -o primarycache=none \
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$TESTPOOL/testfs4 < $backup"
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typeset compr=$(get_prop compression $TESTPOOL/testfs4)
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[[ "$compr" == "gzip" ]] || \
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log_fail "Unexpected compression $compr in recved dataset"
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corrupt_blocks_at_level "/$TESTPOOL/testfs4/$TESTFILE0" 0
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# test healing recv when compression doesn't match between send file and on-disk
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test_corrective_recv "$TESTPOOL/testfs4@snap1" $backup
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# create new encrypted (and compressed) dataset using our send file
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log_must eval "zfs recv -o encryption=aes-256-ccm -o keyformat=passphrase \
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-o keylocation=file:///$TESTPOOL/pwd -o primarycache=none \
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$TESTPOOL/testfs5 < $backup"
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typeset encr=$(get_prop encryption $TESTPOOL/testfs5)
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[[ "$encr" == "aes-256-ccm" ]] || \
|
||||
log_fail "Unexpected encryption $encr in recved dataset"
|
||||
log_must eval "zfs send --raw $TESTPOOL/testfs5@snap1 > $raw_backup"
|
||||
log_must eval "zfs send $TESTPOOL/testfs5@snap1 > $backup"
|
||||
corrupt_blocks_at_level "/$TESTPOOL/testfs5/$TESTFILE0" 0
|
||||
# test healing recv of an encrypted dataset using an unencrypted send file
|
||||
test_corrective_recv "$TESTPOOL/testfs5@snap1" $backup
|
||||
corrupt_blocks_at_level "/$TESTPOOL/testfs5/$TESTFILE0" 0
|
||||
log_must zfs unmount $TESTPOOL/testfs5
|
||||
log_must zfs unload-key $TESTPOOL/testfs5
|
||||
# test healing recv (on an encrypted dataset) using a raw send file
|
||||
test_corrective_recv "$TESTPOOL/testfs5@snap1" $raw_backup
|
||||
# non raw send file healing an encrypted dataset with an unloaded key will fail
|
||||
log_mustnot eval "zfs recv -c $TESTPOOL/testfs5@snap1 < $backup"
|
||||
|
||||
log_must zfs rollback -r $TESTPOOL/$TESTFS1@snap1
|
||||
corrupt_blocks_at_level $file 0
|
||||
# test healing when specifying destination filesystem only (no snapshot)
|
||||
test_corrective_recv $TESTPOOL/$TESTFS1 $backup
|
||||
# test incremental recv aftear healing recv
|
||||
log_must eval "zfs recv $TESTPOOL/$TESTFS1 < $ibackup"
|
||||
|
||||
# test that healing recv can not be combined with incompatible recv options
|
||||
log_mustnot eval "zfs recv -h -c $TESTPOOL/$TESTFS1@snap1 < $backup"
|
||||
log_mustnot eval "zfs recv -F -c $TESTPOOL/$TESTFS1@snap1 < $backup"
|
||||
log_mustnot eval "zfs recv -s -c $TESTPOOL/$TESTFS1@snap1 < $backup"
|
||||
log_mustnot eval "zfs recv -u -c $TESTPOOL/$TESTFS1@snap1 < $backup"
|
||||
log_mustnot eval "zfs recv -d -c $TESTPOOL/$TESTFS1@snap1 < $backup"
|
||||
log_mustnot eval "zfs recv -e -c $TESTPOOL/$TESTFS1@snap1 < $backup"
|
||||
|
||||
# ensure healing recv doesn't work when snap GUIDS don't match
|
||||
log_mustnot eval "zfs recv -c $TESTPOOL/testfs5@snap2 < $backup"
|
||||
log_mustnot eval "zfs recv -c $TESTPOOL/testfs5 < $backup"
|
||||
|
||||
# test that healing recv doesn't work on non-existing snapshots
|
||||
log_mustnot eval "zfs recv -c $TESTPOOL/$TESTFS1@missing < $backup"
|
||||
|
||||
log_pass "OpenZFS corrective recv works for data healing"
|
||||
Reference in New Issue
Block a user