tests/zfs-tests/tests/functional/removal/removal_resume_export.ksh

   1 #! /bin/ksh -p
   2 #
   3 # CDDL HEADER START
   4 #
   5 # This file and its contents are supplied under the terms of the
   6 # Common Development and Distribution License ("CDDL"), version 1.0.
   7 # You may only use this file in accordance with the terms of version
   8 # 1.0 of the CDDL.
   9 #
  10 # A full copy of the text of the CDDL should have accompanied this
  11 # source.  A copy of the CDDL is also available via the Internet at
  12 # http://www.illumos.org/license/CDDL.
  13 #
  14 # CDDL HEADER END
  15 #
  16
  17 #
  18 # Copyright (c) 2017 by Delphix. All rights reserved.
  19 #
  20
  21 . $STF_SUITE/include/libtest.shlib
  22 . $STF_SUITE/tests/functional/removal/removal.kshlib
  23
  24 #
  25 # DESCRIPTION:
  26 #
  27 # When a pool has an ongoing removal and it is exported ZFS
  28 # suspends the removal thread beforehand. This test ensures
  29 # that ZFS restarts the removal thread if the export fails
  30 # for some reason.
  31 #
  32 # STRATEGY:
  33 #
  34 # 1. Create a pool with one vdev and do some writes on it.
  35 # 2. Add a new vdev to the pool and start the removal of
  36 #    the first vdev.
  37 # 3. Inject a fault in the pool and attempt to export (it
  38 #    should fail).
  39 # 4. After the export fails ensure that the removal thread
  40 #    was restarted and the process complete successfully.
  41 #
  42
  43
  44 function cleanup
  45 {
  46         log_must zinject -c all
  47         default_cleanup_noexit
  48 }
  49
  50 function callback
  51 {
  52         log_mustnot zpool export $TESTPOOL
  53         return 0
  54 }
  55
  56 log_onexit cleanup
  57
  58 #
  59 # Create pool with one disk.
  60 #
  61 log_must default_setup_noexit "$REMOVEDISK"
  62
  63 #
  64 # Turn off compression to raise capacity as much as possible
  65 # for the little time that this test runs.
  66 #
  67 log_must zfs set compression=off $TESTPOOL/$TESTFS
  68
  69 #
  70 # Write some data that will be evacuated from the device when
  71 # we start the removal.
  72 #
  73 log_must dd if=/dev/urandom of=$TESTDIR/$TESTFILE0 bs=64M count=32
  74
  75 #
  76 # Add second device where all the data will be evacuated.
  77 #
  78 log_must zpool add -f $TESTPOOL $NOTREMOVEDISK
  79
  80 #
  81 # Inject an error so export fails after having just suspended
  82 # the removal thread. [spa_inject_ref gets incremented]
  83 #
  84 log_must zinject -d $REMOVEDISK -D 10:1 $TESTPOOL
  85
  86 #
  87 # Because of the above error export should fail.
  88 #
  89 log_must attempt_during_removal $TESTPOOL $REMOVEDISK callback
  90
  91 log_pass "Device removal thread resumes after failed export"