1#!/usr/bin/bash -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 2009 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# A reservation guarantees a certain amount of space for a dataset. 39# Nothing else which happens in the same pool should affect that 40# space, i.e. even if the rest of the pool fills up the reserved 41# space should still be accessible. 42# 43# STRATEGY: 44# 1) Create 2 filesystems 45# 2) Set a reservation on one filesystem 46# 3) Fill up the other filesystem (which does not have a reservation 47# set) until all space is consumed 48# 4) Verify can still write to the filesystem which has a reservation 49# 50 51verify_runnable "both" 52 53log_assert "Verify reservations protect space" 54 55function cleanup 56{ 57 log_must zfs destroy -f $TESTPOOL/$TESTFS2 58 log_must zero_reservation $TESTPOOL/$TESTFS 59 60 [[ -e $TESTDIR/$TESTFILE2 ]] && log_must rm -rf $TESTDIR/$TESTFILE2 61 [[ -d $TESTDIR2 ]] && log_must rm -rf $TESTDIR2 62} 63 64log_onexit cleanup 65 66log_must zfs create $TESTPOOL/$TESTFS2 67log_must zfs set mountpoint=$TESTDIR2 $TESTPOOL/$TESTFS2 68 69space_avail=`get_prop available $TESTPOOL` 70 71((resv_size_set = space_avail - RESV_FREE_SPACE)) 72 73log_must zfs set reservation=$resv_size_set $TESTPOOL/$TESTFS 74 75((write_count = (RESV_FREE_SPACE + RESV_TOLERANCE) / BLOCK_SIZE)) 76 77file_write -o create -f $TESTDIR2/$TESTFILE1 -b $BLOCK_SIZE -c $write_count \ 78 -d 0 79ret=$? 80if [[ $ret != $ENOSPC ]]; then 81 log_fail "Did not get ENOSPC (got $ret) for non-reserved filesystem" 82fi 83 84((write_count = (RESV_FREE_SPACE - RESV_TOLERANCE) / BLOCK_SIZE)) 85log_must file_write -o create -f $TESTDIR/$TESTFILE2 -b $BLOCK_SIZE -c \ 86 $write_count -d 0 87 88log_pass "Reserved space preserved correctly" 89