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Diffstat (limited to 'tests/zfs-tests/tests/functional/reservation/reservation_015_pos.sh')
| -rwxr-xr-x | tests/zfs-tests/tests/functional/reservation/reservation_015_pos.sh | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/tests/zfs-tests/tests/functional/reservation/reservation_015_pos.sh b/tests/zfs-tests/tests/functional/reservation/reservation_015_pos.sh new file mode 100755 index 000000000000..c8779a4afd32 --- /dev/null +++ b/tests/zfs-tests/tests/functional/reservation/reservation_015_pos.sh @@ -0,0 +1,99 @@ +#!/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/reservation/reservation.shlib + +# +# DESCRIPTION: +# +# In pool with a full filesystem and a regular volume with an implicit +# reservation, setting the reservation on the volume to 'none' should allow +# more data to be written to the filesystem. +# +# +# STRATEGY: +# 1) Create a regular non-sparse volume (which implicitly sets the reservation +# property to a value equal to the volume size) +# 2) Create a filesystem at the same level +# 3) Fill up the filesystem +# 4) Set the reservation on the volume to 'none' +# 5) Verify can write more data to the filesystem +# + +verify_runnable "global" + +log_assert "Setting volume reservation to 'none' allows more data to be " \ + "written to top level filesystem" + +function cleanup +{ + datasetexists $TESTPOOL/$TESTVOL && \ + log_must $ZFS destroy $TESTPOOL/$TESTVOL + + [[ -e $TESTDIR/$TESTFILE1 ]] && log_must $RM -rf $TESTDIR/$TESTFILE1 + [[ -e $TESTDIR/$TESTFILE2 ]] && log_must $RM -rf $TESTDIR/$TESTFILE2 +} +log_onexit cleanup + +space_avail=$(largest_volsize_from_pool $TESTPOOL) + +# +# To make sure this test doesn't take too long to execute on +# large pools, we calculate a volume size which when applied +# to the volume will ensure we have RESV_FREE_SPACE +# left free in the pool which we can quickly fill. +# +((resv_size_set = space_avail - RESV_FREE_SPACE)) +resv_size_set=$(floor_volsize $resv_size_set) + +log_must $ZFS create -V $resv_size_set $TESTPOOL/$TESTVOL + +space_avail_still=`get_prop available $TESTPOOL` + +fill_size=$((space_avail_still + $RESV_TOLERANCE)) +write_count=$((fill_size / BLOCK_SIZE)) + +# Now fill up the filesystem (which doesn't have a reservation set +# and thus will use up whatever free space is left in the pool). +$FILE_WRITE -o create -f $TESTDIR/$TESTFILE1 -b $BLOCK_SIZE -c $write_count -d 0 +ret=$? +if (($ret != $ENOSPC)); then + log_fail "Did not get ENOSPC as expected (got $ret)." +fi + +log_must $ZFS set refreservation=none $TESTPOOL/$TESTVOL + +log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE2 -b $PAGESIZE \ + -c 1000 -d 0 + +log_pass "Setting top level volume reservation to 'none' allows more " \ + "data to be written to the top level filesystem" |