1#! /bin/ksh -p 2# 3# CDDL HEADER START 4# 5# This file and its contents are supplied under the terms of the 6# Common Development and Distribution License ("CDDL"), version 1.0. 7# You may only use this file in accordance with the terms of version 8# 1.0 of the CDDL. 9# 10# A full copy of the text of the CDDL should have accompanied this 11# source. A copy of the CDDL is also available via the Internet at 12# http://www.illumos.org/license/CDDL. 13# 14# CDDL HEADER END 15# 16 17# 18# Copyright (c) 2014, 2016 by Delphix. All rights reserved. 19# 20 21. $STF_SUITE/include/libtest.shlib 22. $STF_SUITE/tests/functional/removal/removal.kshlib 23 24# 25# DESCRIPTION: 26# 27# For device removal a file's contents should transfer 28# completely from one disk to another. That should remain 29# to be the case even if multiple levels of indirection 30# are introduced as we remove more and more devices. 31# 32# STRATEGY: 33# 34# 1. We create a file of size 128k and we save its contents 35# in a local variable. 36# 2. We set the limit of the maximum copied segment size of 37# removals to 32k, so during removal our 128k file will 38# be split to 4 blocks. 39# 3. We start removing disks and adding them back in a loop. 40# This way the file is moved around and introduces split 41# blocks. 42# 4. The loop itself tests that we don't have any problem 43# when removing many devices. Within the loop we test 44# that the files contents remain the same across transfers. 45# 46 47TMPDIR=${TMPDIR:-/tmp} 48log_must mkfile $(($MINVDEVSIZE * 2)) $TMPDIR/dsk1 49log_must mkfile $(($MINVDEVSIZE * 2)) $TMPDIR/dsk2 50DISKS="$TMPDIR/dsk1 $TMPDIR/dsk2" 51REMOVEDISK=$TMPDIR/dsk1 52 53log_must default_setup_noexit "$DISKS" 54 55function cleanup 56{ 57 default_cleanup_noexit 58 log_must rm -f $DISKS 59 60 # reset zfs_remove_max_segment to 1M 61 log_must mdb_set_uint32 zfs_remove_max_segment 1048576 62} 63 64log_onexit cleanup 65 66# set zfs_remove_max_segment to 32k 67log_must mdb_set_uint32 zfs_remove_max_segment 32768 68 69log_must dd if=/dev/urandom of=$TESTDIR/$TESTFILE0 bs=128k count=1 70FILE_CONTENTS=`cat $TESTDIR/$TESTFILE0` 71log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ] 72 73for i in {1..100}; do 74 log_must zpool remove $TESTPOOL $TMPDIR/dsk1 75 log_must wait_for_removal $TESTPOOL 76 log_mustnot vdevs_in_pool $TESTPOOL $TMPDIR/dsk1 77 log_must zpool add $TESTPOOL $TMPDIR/dsk1 78 79 log_must zinject -a 80 log_must dd if=$TESTDIR/$TESTFILE0 of=/dev/null 81 log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ] 82 83 log_must zpool remove $TESTPOOL $TMPDIR/dsk2 84 log_must wait_for_removal $TESTPOOL 85 log_mustnot vdevs_in_pool $TESTPOOL $TMPDIR/dsk2 86 log_must zpool add $TESTPOOL $TMPDIR/dsk2 87 88 log_must zinject -a 89 log_must dd if=$TESTDIR/$TESTFILE0 of=/dev/null 90 log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ] 91done 92 93log_pass "File contents transfered completely from one disk to another." 94