#!/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 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."