usr/src/test/zfs-tests/tests/functional/reservation/reservation_019_pos.sh

   1 #!/usr/bin/bash -p
   2 #
   3 # This file and its contents are supplied under the terms of the
   4 # Common Development and Distribution License ("CDDL"), version 1.0.
   5 # You may only use this file in accordance with the terms of version
   6 # 1.0 of the CDDL.
   7 #
   8 # A full copy of the text of the CDDL should have accompanied this
   9 # source.  A copy of the CDDL is also available via the Internet at
  10 # http://www.illumos.org/license/CDDL.
  11 #
  12
  13 #
  14 # Copyright 2018 Joyent, Inc.
  15 #
  16
  17 . $STF_SUITE/include/libtest.shlib
  18 . $STF_SUITE/tests/functional/reservation/reservation.shlib
  19
  20 #
  21 # DESCRIPTION:
  22 #
  23 # A thin provisioned volume can become thick provisioned with 'zfs set
  24 # refreservation=auto'.
  25 #
  26 # STRATEGY:
  27 # 1) Create a sparse value.
  28 # 2) Use zfs set refreservation=auto to make it thick provisioned.
  29 # 3) Verify that refreservation is now the size predicted by
  30 # volsize_to_reservation().
  31 #
  32
  33 verify_runnable "global"
  34
  35 function cleanup
  36 {
  37         if datasetexists $TESTPOOL/$TESTVOL; then
  38                 log_must zfs destroy -f $TESTPOOL/$TESTVOL
  39         fi
  40 }
  41
  42 log_onexit cleanup
  43
  44 log_assert "A thin provisioned volume can become thick provisioned with" \
  45     "'zfs set refreservation=auto'."
  46
  47 space_avail=$(get_prop available $TESTPOOL)
  48 (( vol_size = (space_avail / 2) & ~(1024 * 1024 - 1) ))
  49
  50 vol=$TESTPOOL/$TESTVOL
  51
  52 # Create sparse vol and verify
  53 log_must zfs create -V $vol_size -s $vol
  54 resv=$(get_prop refreservation $vol)
  55 log_must test $resv -eq 0
  56
  57 # Set refreservation
  58 log_must zfs set refreservation=auto $vol
  59
  60 # Verify
  61 resv=$(get_prop refreservation $vol)
  62 expected=$(volsize_to_reservation $vol $vol_size)
  63 log_must test $resv -eq $expected
  64
  65 log_pass "Setting refreservation=auto set refreservation to expected value"