lvm2/test/shell/snapshot-maxsize.sh

#!/usr/bin/env bash

# Copyright (C) 2014 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

# Testing calculation of snapshot space
# https://bugzilla.redhat.com/show_bug.cgi?id=1035871


SKIP_WITH_LVMPOLLD=1

. lib/inittest

aux prepare_pvs 1
get_devs

vgcreate $SHARED -s 4K "$vg" "${DEVICES[@]}"

lvcreate -aey -L1 -n $lv1 $vg
# Snapshot should be large enough to handle any writes
lvcreate -L2 -s $vg/$lv1 -n $lv2

dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv2" bs=1M count=1 oflag=direct

# Snapshot must not be 'I'nvalid here
check lv_attr_bit state $vg/$lv2 "a"

vgremove -f $vg
tests: use bash 2017-07-02 22:38:32 +03:00			`#!/usr/bin/env bash`

tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00			`# Copyright (C) 2014 Red Hat, Inc. All rights reserved.`
			`#`
			`# This copyrighted material is made available to anyone wishing to use,`
			`# modify, copy, or redistribute it subject to the terms and conditions`
			`# of the GNU General Public License v.2.`
			`#`
			`# You should have received a copy of the GNU General Public License`
			`# along with this program; if not, write to the Free Software Foundation,`
doc: change fsf address Hmm rpmlint suggest fsf is using a different address these days, so lets keep it up-to-date 2016-01-21 13:49:46 +03:00			`# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA`
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00
			`# Testing calculation of snapshot space`
			`# https://bugzilla.redhat.com/show_bug.cgi?id=1035871`

tests: enable lvmlockd for passing tests 2018-05-24 17:49:48 +03:00
tests: use more SKIP Speed-up check_lvmpolld. 2015-10-27 17:10:06 +03:00			`SKIP_WITH_LVMPOLLD=1`
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00
tests: use more SKIP Speed-up check_lvmpolld. 2015-10-27 17:10:06 +03:00			`. lib/inittest`
lvmpolld: Add standalone polldaemon. See doc/lvmpolld_overview.txt 2015-05-09 02:59:18 +03:00
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00			`aux prepare_pvs 1`
tests: replace cat usage 2017-07-06 20:41:25 +03:00			`get_devs`
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00
tests: enable lvmlockd for passing tests 2018-05-24 17:49:48 +03:00			`vgcreate $SHARED -s 4K "$vg" "${DEVICES[@]}"`
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00
tests: updates for new test snaphost needs exclusive origin for cluster older md5 needs 2 space char 2014-03-06 20:55:58 +04:00			`lvcreate -aey -L1 -n $lv1 $vg`
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00			`# Snapshot should be large enough to handle any writes`
			`lvcreate -L2 -s $vg/$lv1 -n $lv2`

tests: use DIRECT io for zeroing whenver we can Performance with direct I/O here is noticable better, so use it instead of buffered write whenever we can. 2020-09-20 00:25:11 +03:00			`dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv2" bs=1M count=1 oflag=direct`
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00
tests: updates Move thin test out of listing. 2014-05-13 12:28:55 +04:00			`# Snapshot must not be 'I'nvalid here`
			`check lv_attr_bit state $vg/$lv2 "a"`
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00
			`vgremove -f $vg`