/tests/zfs-tests/tests/functional/refreserv/refreserv_002_pos.ksh
Korn Shell | 114 lines | 54 code | 16 blank | 44 comment | 10 complexity | d7049f4cf9401cb48be4cf52df246351 MD5 | raw file
Possible License(s): Apache-2.0, MPL-2.0-no-copyleft-exception
- #!/bin/ksh -p
- #
- # CDDL HEADER START
- #
- # The contents of this file are subject to the terms of the
- # Common Development and Distribution License (the "License").
- # You may not use this file except in compliance with the License.
- #
- # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- # or http://www.opensolaris.org/os/licensing.
- # See the License for the specific language governing permissions
- # and limitations under the License.
- #
- # When distributing Covered Code, include this CDDL HEADER in each
- # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- # If applicable, add the following below this CDDL HEADER, with the
- # fields enclosed by brackets "[]" replaced with your own identifying
- # information: Portions Copyright [yyyy] [name of copyright owner]
- #
- # CDDL HEADER END
- #
- #
- # Copyright 2009 Sun Microsystems, Inc. All rights reserved.
- # Use is subject to license terms.
- #
- #
- # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
- #
- . $STF_SUITE/include/libtest.shlib
- . $STF_SUITE/tests/functional/refreserv/refreserv.cfg
- #
- # DESCRIPTION:
- # Setting full size as refreservation, verify no snapshot can be created.
- #
- # STRATEGY:
- # 1. Setting full size as refreservation on pool
- # 2. Verify no snapshot can be created on this pool
- # 3. Setting full size as refreservation on filesystem
- # 4. Verify no snapshot can be created on it and its subfs
- #
- verify_runnable "both"
- function cleanup
- {
- if is_global_zone ; then
- log_must zfs set refreservation=none $TESTPOOL
- if datasetexists $TESTPOOL@snap ; then
- log_must zfs destroy -f $TESTPOOL@snap
- fi
- fi
- log_must zfs destroy -rf $TESTPOOL/$TESTFS
- log_must zfs create $TESTPOOL/$TESTFS
- log_must zfs set mountpoint=$TESTDIR $TESTPOOL/$TESTFS
- }
- # This function iteratively increases refreserv to its highest possible
- # value. Simply setting refreserv == quota can allow enough writes to
- # complete that the test fails.
- function max_refreserv
- {
- typeset ds=$1
- typeset -i incsize=131072
- typeset -i rr=$(get_prop available $ds)
- log_must zfs set refreserv=$rr $ds
- while :; do
- zfs set refreserv=$((rr + incsize)) $ds >/dev/null 2>&1
- if [[ $? == 0 ]]; then
- ((rr += incsize))
- continue
- else
- ((incsize /= 2))
- ((incsize == 0)) && break
- fi
- done
- }
- log_assert "Setting full size as refreservation, verify no snapshot " \
- "can be created."
- log_onexit cleanup
- log_must zfs create $TESTPOOL/$TESTFS/subfs
- typeset datasets
- if is_global_zone; then
- datasets="$TESTPOOL $TESTPOOL/$TESTFS $TESTPOOL/$TESTFS/subfs"
- else
- datasets="$TESTPOOL/$TESTFS $TESTPOOL/$TESTFS/subfs"
- fi
- for ds in $datasets; do
- #
- # Verify refreservation on dataset
- #
- log_must zfs set quota=25M $ds
- max_refreserv $ds
- log_mustnot zfs snapshot $ds@snap
- if datasetexists $ds@snap ; then
- log_fail "ERROR: $ds@snap should not exists."
- fi
- log_must zfs set quota=none $ds
- log_must zfs set refreservation=none $ds
- done
- log_pass "Setting full size as refreservation, verify no snapshot " \
- "can be created."