/tests/zfs-tests/tests/functional/reservation/reservation_022_pos.ksh

https://github.com/adilger/zfs · Korn Shell · 82 lines · 31 code · 15 blank · 36 comment · 0 complexity · a344b6833605ad776c10871e02f7a0d5 MD5 · raw file 

    

  1. #!/bin/ksh -p
    2. 

  2. #
    3. 

  3. # This file and its contents are supplied under the terms of the
    4. 

  4. # Common Development and Distribution License ("CDDL"), version 1.0.
    5. 

  5. # You may only use this file in accordance with the terms of version
    6. 

  6. # 1.0 of the CDDL.
    7. 

  7. #
    8. 

  8. # A full copy of the text of the CDDL should have accompanied this
    9. 

  9. # source.  A copy of the CDDL is also available via the Internet at
    10. 

  10. # http://www.illumos.org/license/CDDL.
    11. 

  11. #
    12. 

  12. 

  13. #
    14. 

  14. # Copyright 2018 Joyent, Inc.
    15. 

  15. #
    16. 

  16. 

  17. . $STF_SUITE/include/libtest.shlib
    18. 

  18. . $STF_SUITE/tests/functional/reservation/reservation.shlib
    19. 

  19. 

  20. #
    21. 

  21. # DESCRIPTION:
    22. 

  22. #
    23. 

  23. # Cloning a volume with -o refreservation=auto creates a thick provisioned
    24. 

  24. # volume
    25. 

  25. #
    26. 

  26. # STRATEGY:
    27. 

  27. # 1) Create a sparse volume.
    28. 

  28. # 2) Snapshot and clone it, using clone -o refreservation=auto.
    29. 

  29. # 3) Verify that the clone has refreservation that matches the size predicted by
    30. 

  30. #    volsize_to_reservation().
    31. 

  31. # 4) Snapshot this second volume and clone it, using clone -o
    32. 

  32. #    refreservation=auto.
    33. 

  33. # 5) Verify that the second clone has refreservation that matches the size
    34. 

  34. #    predicted by volsize_to_reservation().
    35. 

  35. #
    36. 

  36. 

  37. verify_runnable "global"
    38. 

  38. 

  39. function cleanup
    40. 

  40. {
    41. 

  41. 	# Destroy first vol and descendants in one go.
    42. 

  42. 	destroy_dataset "$TESTPOOL/$TESTVOL" "-Rf"
    43. 

  43. }
    44. 

  44. 

  45. log_onexit cleanup
    46. 

  46. 

  47. log_assert "Cloning a volume with -o refreservation=auto creates a thick" \
    48. 

  48.     "provisioned volume"
    49. 

  49. 

  50. space_avail=$(get_prop available $TESTPOOL)
    51. 

  51. (( vol_size = (space_avail / 4) & ~(1024 * 1024 - 1) ))
    52. 

  52. 

  53. vol=$TESTPOOL/$TESTVOL
    54. 

  54. vol2=$TESTPOOL/$TESTVOL2
    55. 

  55. vol3=$TESTPOOL/$TESTVOL2-again
    56. 

  56. 

  57. # Create sparse vol and verify
    58. 

  58. log_must zfs create -s -V $vol_size $vol
    59. 

  59. resv=$(get_prop refreservation $vol)
    60. 

  60. log_must test $resv -eq 0
    61. 

  61. 

  62. # Clone it
    63. 

  63. snap=$vol@clone
    64. 

  64. log_must zfs snapshot $snap
    65. 

  65. log_must zfs clone -o refreservation=auto $snap $vol2
    66. 

  66. 

  67. # Verify it is thick provisioned
    68. 

  68. resv=$(get_prop refreservation $vol2)
    69. 

  69. expected=$(volsize_to_reservation $vol2 $vol_size)
    70. 

  70. log_must test $resv -eq $expected
    71. 

  71. 

  72. # Clone the thick provisioned volume
    73. 

  73. snap=$vol2@clone
    74. 

  74. log_must zfs snapshot $snap
    75. 

  75. log_must zfs clone -o refreservation=auto $snap $vol3
    76. 

  76. 

  77. # Verify new newest clone is also thick provisioned
    78. 

  78. resv=$(get_prop refreservation $vol3)
    79. 

  79. expected=$(volsize_to_reservation $vol3 $vol_size)
    80. 

  80. log_must test $resv -eq $expected
    81. 

  81. 

  82. log_pass "Cloning a thick provisioned volume results in a sparse volume"
    83.