tests/zfs-tests/tests/functional/reservation/reservation_005_pos.ksh

   1 #!/bin/ksh -p
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22
  23 #
  24 # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  25 # Use is subject to license terms.
  26 #
  27
  28 #
  29 # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
  30 #
  31
  32 . $STF_SUITE/include/libtest.shlib
  33 . $STF_SUITE/tests/functional/reservation/reservation.shlib
  34
  35 #
  36 # DESCRIPTION:
  37 #
  38 # When a reservation property of a filesystem, regular volume
  39 # or sparse volume is set to 'none' the space previously consumed by the
  40 # reservation should be released back to the pool
  41 #
  42 # STRATEGY:
  43 # 1) Create a filesystem, regular volume and sparse volume
  44 # 2) Get the space used and available in the pool
  45 # 3) Set a reservation on the filesystem less than the space available.
  46 # 4) Verify that the 'reservation' property for the filesystem has
  47 # the correct value.
  48 # 5) Reset the reservation value back to zero (or 'none')
  49 # 6) Verify that the space used and available totals for the pool have
  50 # changed by the expected amounts (within tolerances).
  51 # 7) Repeat steps 3-6 for a regular volume, sparse volume
  52 #
  53
  54 verify_runnable "both"
  55
  56 log_assert "Verify space released when reservation on a dataset is set "\
  57         "to 'none'"
  58
  59 function cleanup
  60 {
  61         for obj in $OBJ_LIST; do
  62                 datasetexists $obj && log_must zfs destroy -f $obj
  63         done
  64 }
  65
  66 log_onexit cleanup
  67
  68 space_avail=`get_prop available $TESTPOOL`
  69
  70 if ! is_global_zone ; then
  71         OBJ_LIST=""
  72 else
  73         OBJ_LIST="$TESTPOOL/$TESTVOL $TESTPOOL/$TESTVOL2"
  74         ((vol_set_size = space_avail / 4))
  75         vol_set_size=$(floor_volsize $vol_set_size)
  76         ((sparse_vol_set_size = space_avail * 4))
  77         sparse_vol_set_size=$(floor_volsize $sparse_vol_set_size)
  78
  79
  80         log_must zfs create -V $vol_set_size $TESTPOOL/$TESTVOL
  81         log_must zfs set reservation=none $TESTPOOL/$TESTVOL
  82         log_must zfs create -s -V $sparse_vol_set_size $TESTPOOL/$TESTVOL2
  83 fi
  84
  85 space_avail=`get_prop available $TESTPOOL`
  86 space_used=`get_prop used $TESTPOOL`
  87
  88 # Calculate a large but valid reservation value.
  89 resv_size_set=`expr $space_avail - $RESV_DELTA`
  90
  91 for obj in $TESTPOOL/$TESTFS $OBJ_LIST ; do
  92
  93         #
  94         # For regular (non-sparse) volumes the upper limit is determined
  95         # not by the space available in the pool but rather by the size
  96         # of the volume itself.
  97         #
  98         [[ $obj == $TESTPOOL/$TESTVOL ]] && \
  99             ((resv_size_set = vol_set_size - RESV_DELTA))
 100
 101         log_must zfs set reservation=$resv_size_set $obj
 102
 103         resv_size_get=`get_prop reservation $obj`
 104         if [[ $resv_size_set != $resv_size_get ]]; then
 105                 log_fail "Reservation not the expected value "\
 106                         "($resv_size_set != $resv_size_get)"
 107         fi
 108
 109         log_must zfs set reservation=none $obj
 110
 111         new_space_avail=`get_prop available $TESTPOOL`
 112         new_space_used=`get_prop used $TESTPOOL`
 113
 114         log_must within_limits $space_used $new_space_used $RESV_TOLERANCE
 115         log_must within_limits $space_avail $new_space_avail $RESV_TOLERANCE
 116 done
 117
 118 log_pass "Space correctly released when dataset reservation set to 'none'"