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/tests/zfs-tests/tests/functional/nopwrite/nopwrite_volume.ksh

http://github.com/zfsonlinux/zfs
Korn Shell | 59 lines | 26 code | 9 blank | 24 comment | 4 complexity | 360470d86a972b201b0534164360367d MD5 | raw file
Possible License(s): Apache-2.0, MPL-2.0-no-copyleft-exception 
    

  1. #!/bin/ksh
    2. 

  2. 

  3. #
    4. 

  4. # This file and its contents are supplied under the terms of the
    5. 

  5. # Common Development and Distribution License ("CDDL"), version 1.0.
    6. 

  6. # You may only use this file in accordance with the terms of version
    7. 

  7. # 1.0 of the CDDL.
    8. 

  8. #
    9. 

  9. # A full copy of the text of the CDDL should have accompanied this
    10. 

  10. # source.  A copy of the CDDL is also available via the Internet at
    11. 

  11. # http://www.illumos.org/license/CDDL.
    12. 

  12. #
    13. 

  13. 

  14. #
    15. 

  15. # Copyright (c) 2012, 2016 by Delphix. All rights reserved.
    16. 

  16. #
    17. 

  17. 

  18. . $STF_SUITE/include/libtest.shlib
    19. 

  19. . $STF_SUITE/tests/functional/nopwrite/nopwrite.shlib
    20. 

  20. 

  21. #
    22. 

  22. # Description:
    23. 

  23. # Verify that nopwrite cannot be enabled on volumes
    24. 

  24. #
    25. 

  25. # Strategy:
    26. 

  26. # 1. Create a clone of a volume that fits the criteria for nopwrite.
    27. 

  27. # 2. Overwrite the same blocks from the origin vol and verify that
    28. 

  28. # new space is consumed.
    29. 

  29. #
    30. 

  30. 

  31. verify_runnable "global"
    32. 

  32. origin="$TESTPOOL/$TESTVOL"
    33. 

  33. clone="$TESTPOOL/clone"
    34. 

  34. vol="${ZVOL_RDEVDIR}/$origin"
    35. 

  35. volclone="${ZVOL_RDEVDIR}/$clone"
    36. 

  36. log_onexit cleanup
    37. 

  37. 

  38. function cleanup
    39. 

  39. {
    40. 

  40. 	datasetexists $origin && log_must zfs destroy -R $origin
    41. 

  41. 	# No need to recreate the volume as no other tests expect it.
    42. 

  42. }
    43. 

  43. 

  44. log_assert "nopwrite works on volumes"
    45. 

  45. 

  46. log_must zfs set compress=on $origin
    47. 

  47. log_must zfs set checksum=sha256 $origin
    48. 

  48. dd if=/dev/urandom of=$vol bs=8192 count=4096 conv=notrunc >/dev/null \
    49. 

  49.     2>&1 || log_fail "dd into $origin failed."
    50. 

  50. zfs snapshot $origin@a || log_fail "zfs snap failed"
    51. 

  51. log_must zfs clone $origin@a $clone
    52. 

  52. log_must zfs set compress=on $clone
    53. 

  53. log_must zfs set checksum=sha256 $clone
    54. 

  54. block_device_wait
    55. 

  55. dd if=$vol of=$volclone bs=8192 count=4096 conv=notrunc >/dev/null 2>&1 || \
    56. 

  56.     log_fail "dd into $clone failed."
    57. 

  57. log_must verify_nopwrite $origin $origin@a $clone
    58. 

  58. 

  59. log_pass "nopwrite works on volumes"
    60. 

  60.