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_LVMLOCKD=1
SKIP_WITH_LVMPOLLD=1

. lib/inittest

aux prepare_pvs 1
get_devs

vgcreate -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 conv=fdatasync

# 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: add SKIP_WITH_LVMLOCKD to all tests that don't already used vgcreate $SHARED 2016-02-23 01:13:42 +03:00			`SKIP_WITH_LVMLOCKD=1`
tests: use more SKIP Speed-up check_lvmpolld. 2015-10-27 17:10:06 +03:00			`SKIP_WITH_LVMPOLLD=1`
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00
tests: use more SKIP Speed-up check_lvmpolld. 2015-10-27 17:10:06 +03:00			`. lib/inittest`
lvmpolld: Add standalone polldaemon. See doc/lvmpolld_overview.txt 2015-05-09 02:59:18 +03:00
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00			`aux prepare_pvs 1`
tests: replace cat usage 2017-07-06 20:41:25 +03:00			`get_devs`
tests: check created snapshot has good max size Testing if we are creating large enough old-snapshot (so the COW max size is correct) https://bugzilla.redhat.com/show_bug.cgi?id=1035871 2014-03-06 20:19:35 +04:00
tests: happy using of 4K backend devices When the backend device supports only 4K blocks (like ramdisk) we cannot use for testing any smaller blocksize. So recalc test for 4K extent size. We may possibly introduce one list extra test that can be executed on devices with 512b sectors to check lvm2 support those min extent sizes... 2018-05-12 16:58:13 +03:00			`vgcreate -s 4K "$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 conv=fdatasync Should be slightly better to flushed before dd exits instead of using direct IO. 2015-09-04 00:04:15 +03:00			`dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv2" bs=1M count=1 conv=fdatasync`
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`