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 2007 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_016_pos 35# 36# DESCRIPTION: 37# 38# In pool with a full filesystem and a regular volume (with implicit 39# reservation) destroying the volume should allow more data to be written 40# to the filesystem 41# 42# 43# STRATEGY: 44# 1) Create a regular (non-sparse) volume 45# 2) Create a filesystem at the same level 46# 3) Fill up the filesystem 47# 4) Destroy the volume 48# 5) Verify can write more data to the filesystem 49# 50# TESTABILITY: explicit 51# 52# TEST_AUTOMATION_LEVEL: automated 53# 54# CODING_STATUS: COMPLETED (2005-07-19) 55# 56# __stc_assertion_end 57# 58################################################################################ 59 60verify_runnable "global" 61 62log_assert "Destroying a regular volume with reservation allows more data to" \ 63 " be written to top level filesystem" 64 65space_avail=`get_prop available $TESTPOOL` 66 67# 68# To make sure this test doesn't take too long to execute on 69# large pools, we calculate a volume size which will ensure we 70# have RESV_FREE_SPACE left free in the pool. 71# 72(( vol_set_size = space_avail * 95 / 100 )) 73vol_set_size=$(floor_volsize $vol_set_size $BLOCK_SIZE) 74 75# Creating a regular volume implicitly sets its reservation 76# property to the same value. 77log_must $ZFS create -b $BLOCK_SIZE -V $vol_set_size $TESTPOOL/$TESTVOL 78 79space_avail_still=`get_prop available $TESTPOOL` 80 81# Create a secondary filesystem to soak up what's left to get 82# to RESV_FREE_SPACE for the pool. 83space_avail_still=`get_prop available $TESTPOOL` 84(( zfs_res = space_avail_still - RESV_FREE_SPACE )) 85log_must $ZFS create -o refreservation=$zfs_res $TESTPOOL/$TESTFS2 86 87space_avail_still=`get_prop available $TESTPOOL` 88 89fill_size=`expr $space_avail_still + $RESV_TOLERANCE` 90write_count=`expr $fill_size / $BLOCK_SIZE` 91 92# Now fill up the filesystem (which doesn't have a reservation set 93# and thus will use up whatever free space is left in the pool). 94$FILE_WRITE -o create -f $TESTDIR/$TESTFILE1 -b $BLOCK_SIZE \ 95 -c $write_count -d 0 96ret=$? 97if (( $ret != $ENOSPC )); then 98 log_fail "Did not get ENOSPC as expected (got $ret)." 99fi 100 101log_must $ZFS destroy -f $TESTPOOL/$TESTVOL 102 103log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE2 -b $BLOCK_SIZE \ 104 -c 1000 -d 0 105 106log_pass "Destroying volume with reservation allows more data to" \ 107 " be written to top level filesystem" 108