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-rwxr-xr-xsys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_devices_missing.ksh122
1 files changed, 122 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_devices_missing.ksh b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_devices_missing.ksh
new file mode 100755
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+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_devices_missing.ksh
@@ -0,0 +1,122 @@
+#!/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 (c) 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/tests/functional/cli_root/zpool_import/zpool_import.kshlib
+
+#
+# DESCRIPTION:
+# A pool should be importable when up to 2 top-level devices are missing.
+#
+# STRATEGY:
+# 1. Create a pool.
+# 2. Write some data to the pool and checksum it.
+# 3. Add one or more devices.
+# 4. Write more data to the pool and checksum it.
+# 5. Export the pool.
+# 6. Move added devices out of the devices directory.
+# 7. Import the pool with missing devices.
+# 8. Verify that the first batch of data is intact.
+# 9. Verify that accessing the second batch of data doesn't suspend pool.
+# 10. Export the pool, move back missing devices, Re-import the pool.
+# 11. Verify that all the data is intact.
+#
+
+verify_runnable "global"
+
+function custom_cleanup
+{
+ log_must set_spa_load_verify_metadata 1
+ log_must set_spa_load_verify_data 1
+ log_must set_zfs_max_missing_tvds 0
+ log_must rm -rf $BACKUP_DEVICE_DIR
+ # Highly damaged pools may fail to be destroyed, so we export them.
+ poolexists $TESTPOOL1 && log_must zpool export $TESTPOOL1
+ cleanup
+}
+
+log_onexit custom_cleanup
+
+function test_devices_missing
+{
+ typeset poolcreate="$1"
+ typeset addvdevs="$2"
+ typeset missingvdevs="$3"
+ typeset -i missingtvds="$4"
+
+ log_note "$0: pool '$poolcreate', adding $addvdevs, then" \
+ "moving away $missingvdevs."
+
+ log_must zpool create $TESTPOOL1 $poolcreate
+
+ log_must generate_data $TESTPOOL1 $MD5FILE "first"
+
+ log_must zpool add $TESTPOOL1 $addvdevs
+
+ log_must generate_data $TESTPOOL1 $MD5FILE2 "second"
+
+ log_must zpool export $TESTPOOL1
+
+ log_must mv $missingvdevs $BACKUP_DEVICE_DIR
+
+ # Tell zfs that it is ok to import a pool with missing top-level vdevs
+ log_must set_zfs_max_missing_tvds $missingtvds
+ # Missing devices means that data or metadata may be corrupted.
+ (( missingtvds > 1 )) && log_must set_spa_load_verify_metadata 0
+ log_must set_spa_load_verify_data 0
+ log_must zpool import -o readonly=on -d $DEVICE_DIR $TESTPOOL1
+
+ log_must verify_data_md5sums $MD5FILE
+
+ log_note "Try reading second batch of data, make sure pool doesn't" \
+ "get suspended."
+ verify_data_md5sums $MD5FILE >/dev/null 2>&1
+
+ log_must zpool export $TESTPOOL1
+
+ typeset newpaths=$(echo "$missingvdevs" | \
+ sed "s:$DEVICE_DIR:$BACKUP_DEVICE_DIR:g")
+ log_must mv $newpaths $DEVICE_DIR
+ log_must set_spa_load_verify_metadata 1
+ log_must set_spa_load_verify_data 1
+ log_must set_zfs_max_missing_tvds 0
+ log_must zpool import -d $DEVICE_DIR $TESTPOOL1
+
+ log_must verify_data_md5sums $MD5FILE
+ log_must verify_data_md5sums $MD5FILE2
+
+ # Cleanup
+ log_must zpool destroy $TESTPOOL1
+
+ log_note ""
+}
+
+log_must mkdir -p $BACKUP_DEVICE_DIR
+
+test_devices_missing "$VDEV0" "$VDEV1" "$VDEV1" 1
+test_devices_missing "$VDEV0" "$VDEV1 $VDEV2" "$VDEV1" 1
+test_devices_missing "mirror $VDEV0 $VDEV1" "mirror $VDEV2 $VDEV3" \
+ "$VDEV2 $VDEV3" 1
+test_devices_missing "$VDEV0 log $VDEV1" "$VDEV2" "$VDEV2" 1
+
+#
+# Note that we are testing for 2 non-consecutive missing devices.
+# Missing consecutive devices results in missing metadata. Because of
+# Missing metadata can cause the root dataset to fail to mount.
+#
+test_devices_missing "$VDEV0" "$VDEV1 $VDEV2 $VDEV3" "$VDEV1 $VDEV3" 2
+
+log_pass "zpool import succeeded with missing devices."