usr/src/test/zfs-tests/tests/functional/pool_checkpoint/checkpoint_sm_scale.ksh

   1 #!/usr/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 . $STF_SUITE/tests/functional/pool_checkpoint/pool_checkpoint.kshlib
  19
  20 #
  21 # DESCRIPTION:
  22 #       The maximum address that can be described by the current space
  23 #       map design (assuming the minimum 512-byte addressable storage)
  24 #       limits the maximum allocatable space of any top-level vdev to
  25 #       64PB whenever a vdev-wide space map is used.
  26 #
  27 #       Since a vdev-wide space map is introduced for the checkpoint
  28 #       we want to ensure that we cannot checkpoint a pool that has a
  29 #       top-level vdev with more than 64PB of allocatable space.
  30 #
  31 #       Note: Since this is a pool created from file-based vdevs we
  32 #             are guaranteed that vdev_ashift  is SPA_MINBLOCKSHIFT
  33 #             [which is currently 9 and (1 << 9) = 512], so the numbers
  34 #             work out for this test.
  35 #
  36 # STRATEGY:
  37 #       1. Create pool with a disk of exactly 64PB
  38 #          (so ~63.5PB of allocatable space)
  39 #       2. Ensure that you can checkpoint it
  40 #       3. Create pool with a disk of exactly 65PB
  41 #          (so ~64.5PB of allocatable space)
  42 #       4. Ensure we fail trying to checkpoint it
  43 #
  44
  45 verify_runnable "global"
  46
  47 TESTPOOL1=testpool1
  48 TESTPOOL2=testpool2
  49
  50 DISK64PB=/$DISKFS/disk64PB
  51 DISK65PB=/$DISKFS/disk65PB
  52
  53 function test_cleanup
  54 {
  55         poolexists $TESTPOOL1 && destroy_pool $TESTPOOL1
  56         poolexists $TESTPOOL2 && destroy_pool $TESTPOOL2
  57         log_must rm -f $DISK64PB $DISK65PB
  58         cleanup_test_pool
  59 }
  60
  61 setup_test_pool
  62 log_onexit test_cleanup
  63
  64 log_must zfs create $DISKFS
  65 log_must mkfile -n $((64 * 1024 * 1024))g $DISK64PB
  66 log_must mkfile -n $((65 * 1024 * 1024))g $DISK65PB
  67
  68 log_must zpool create $TESTPOOL1 $DISK64PB
  69 log_must zpool create $TESTPOOL2 $DISK65PB
  70
  71 log_must zpool checkpoint $TESTPOOL1
  72 log_mustnot zpool checkpoint $TESTPOOL2
  73
  74 log_pass "Attempting to checkpoint a pool with a vdev that's more than 64PB."