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# $FreeBSD$ 24 25# 26# Copyright 2009 Sun Microsystems, Inc. All rights reserved. 27# Use is subject to license terms. 28# 29# ident "@(#)reservation_015_pos.ksh 1.4 09/08/06 SMI" 30# 31 32. $STF_SUITE/include/libtest.kshlib 33. $STF_SUITE/tests/reservation/reservation.kshlib 34 35############################################################################### 36# 37# __stc_assertion_start 38# 39# ID: reservation_015_pos 40# 41# DESCRIPTION: 42# 43# In pool with a full filesystem and a regular volume with an implicit 44# reservation, setting the reservation on the volume to 'none' should allow 45# more data to be written to the filesystem. 46# 47# 48# STRATEGY: 49# 1) Create a regular non-sparse volume (which implicitly sets the reservation 50# property to a value equal to the volume size) 51# 2) Create a filesystem at the same level 52# 3) Fill up the filesystem 53# 4) Set the reservation on the volume to 'none' 54# 5) Verify can write more data to the filesystem 55# 56# TESTABILITY: explicit 57# 58# TEST_AUTOMATION_LEVEL: automated 59# 60# CODING_STATUS: COMPLETED (2005-07-19) 61# 62# __stc_assertion_end 63# 64################################################################################ 65 66verify_runnable "global" 67 68log_assert "Setting volume reservation to 'none' allows more data to" \ 69 " be written to top level filesystem" 70 71space_avail=`get_prop available $TESTPOOL` 72 73# 74# To make sure this test doesn't take too long to execute on 75# large pools, we calculate a volume size which when applied 76# to the volume will ensure we have RESV_FREE_SPACE 77# left free in the pool which we can quickly fill. 78# 79# For the volume itself, set a reservation to 95% of available 80# space to allow space for metadata. 81# 82(( resv_size_set = space_avail * 95 / 100 )) 83resv_size_set=$(floor_volsize $resv_size_set $BLOCK_SIZE) 84 85log_must $ZFS create -b $BLOCK_SIZE -V $resv_size_set $TESTPOOL/$TESTVOL 86 87# Create a secondary filesystem to soak up what's left to get 88# to RESV_FREE_SPACE for the pool. 89space_avail_still=`get_prop available $TESTPOOL` 90(( zfs_res = space_avail_still - RESV_FREE_SPACE )) 91log_must $ZFS create -o refreservation=$zfs_res $TESTPOOL/$TESTFS2 92 93space_avail_still=`get_prop available $TESTPOOL` 94 95fill_size=`expr $space_avail_still + $RESV_TOLERANCE` 96write_count=`expr $fill_size / $BLOCK_SIZE` 97 98# Now fill up the filesystem (which doesn't have a reservation set 99# and thus will use up whatever free space is left in the pool). 100$FILE_WRITE -o create -f $TESTDIR/$TESTFILE1 -b $BLOCK_SIZE \ 101 -c $write_count -d 0 102ret=$? 103 104if (( $ret != $ENOSPC )); then 105 log_fail "Did not get ENOSPC as expected (got $ret)." 106fi 107 108log_must $ZFS set refreservation=none $TESTPOOL/$TESTVOL 109 110log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE2 -b $BLOCK_SIZE \ 111 -c 1000 -d 0 112 113log_pass "Setting top level volume reservation to 'none' allows more " \ 114 "data to be written to the top level filesystem" 115