1#! /usr/local/bin/ksh93 -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. $STF_SUITE/include/libtest.kshlib 28. $STF_SUITE/tests/reservation/reservation.kshlib 29 30############################################################################### 31# 32# __stc_assertion_start 33# 34# ID: reservation_015_pos 35# 36# DESCRIPTION: 37# 38# In pool with a full filesystem and a regular volume with an implicit 39# reservation, setting the reservation on the volume to 'none' should allow 40# more data to be written to the filesystem. 41# 42# 43# STRATEGY: 44# 1) Create a regular non-sparse volume (which implicitly sets the reservation 45# property to a value equal to the volume size) 46# 2) Create a filesystem at the same level 47# 3) Fill up the filesystem 48# 4) Set the reservation on the volume to 'none' 49# 5) Verify can write more data to the filesystem 50# 51# TESTABILITY: explicit 52# 53# TEST_AUTOMATION_LEVEL: automated 54# 55# CODING_STATUS: COMPLETED (2005-07-19) 56# 57# __stc_assertion_end 58# 59################################################################################ 60 61verify_runnable "global" 62 63log_assert "Setting volume reservation to 'none' allows more data to" \ 64 " be written to top level filesystem" 65 66space_avail=`get_prop available $TESTPOOL` 67 68# 69# To make sure this test doesn't take too long to execute on 70# large pools, we calculate a volume size which when applied 71# to the volume will ensure we have RESV_FREE_SPACE 72# left free in the pool which we can quickly fill. 73# 74# For the volume itself, set a reservation to 95% of available 75# space to allow space for metadata. 76# 77(( resv_size_set = space_avail * 95 / 100 )) 78resv_size_set=$(floor_volsize $resv_size_set $BLOCK_SIZE) 79 80log_must $ZFS create -b $BLOCK_SIZE -V $resv_size_set $TESTPOOL/$TESTVOL 81 82# Create a secondary filesystem to soak up what's left to get 83# to RESV_FREE_SPACE for the pool. 84space_avail_still=`get_prop available $TESTPOOL` 85(( zfs_res = space_avail_still - RESV_FREE_SPACE )) 86log_must $ZFS create -o refreservation=$zfs_res $TESTPOOL/$TESTFS2 87 88space_avail_still=`get_prop available $TESTPOOL` 89 90fill_size=`expr $space_avail_still + $RESV_TOLERANCE` 91write_count=`expr $fill_size / $BLOCK_SIZE` 92 93# Now fill up the filesystem (which doesn't have a reservation set 94# and thus will use up whatever free space is left in the pool). 95$FILE_WRITE -o create -f $TESTDIR/$TESTFILE1 -b $BLOCK_SIZE \ 96 -c $write_count -d 0 97ret=$? 98 99if (( $ret != $ENOSPC )); then 100 log_fail "Did not get ENOSPC as expected (got $ret)." 101fi 102 103log_must $ZFS set refreservation=none $TESTPOOL/$TESTVOL 104 105log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE2 -b $BLOCK_SIZE \ 106 -c 1000 -d 0 107 108log_pass "Setting top level volume reservation to 'none' allows more " \ 109 "data to be written to the top level filesystem" 110