tests/zfs-tests/tests/functional/pool_checkpoint/checkpoint_discard_many.ksh

   1 #!/bin/ksh -p
   2
   3 #
   4 # This file and its contents are supplied under the terms of the
   5 # Common Development and Distribution License ("CDDL"), version 1.0.
   6 # You may only use this file in accordance with the terms of version
   7 # 1.0 of the CDDL.
   8 #
   9 # A full copy of the text of the CDDL should have accompanied this
  10 # source.  A copy of the CDDL is also available via the Internet at
  11 # http://www.illumos.org/license/CDDL.
  12 #
  13
  14 #
  15 # Copyright (c) 2017 by Delphix. All rights reserved.
  16 #
  17
  18 . $STF_SUITE/tests/functional/pool_checkpoint/pool_checkpoint.kshlib
  19
  20 #
  21 # DESCRIPTION:
  22 #       Take a checkpoint and discard checkpointed data twice. The
  23 #       idea is to ensure that the background discard zfs thread is
  24 #       always running and works as expected.
  25 #
  26 # STRATEGY:
  27 #       1. Create pool
  28 #       2. Populate it and then take a checkpoint
  29 #       3. Do some changes afterwards, and then discard checkpoint
  30 #       4. Repeat steps 2 and 3
  31 #
  32
  33 verify_runnable "global"
  34
  35 setup_test_pool
  36 log_onexit cleanup_test_pool
  37
  38 populate_test_pool
  39 log_must zpool checkpoint $TESTPOOL
  40 test_change_state_after_checkpoint
  41 log_must zpool checkpoint -d $TESTPOOL
  42 test_wait_discard_finish
  43
  44 log_must mkfile -n 100M $FS2FILE
  45 log_must randwritecomp $FS2FILE 100
  46 log_must zpool checkpoint $TESTPOOL
  47
  48 log_must randwritecomp $FS2FILE 100
  49 log_must zpool checkpoint -d $TESTPOOL
  50 test_wait_discard_finish
  51
  52 log_pass "Background discarding works as expected."