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#!/usr/bin/env bash
# Copyright (C) 2018 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
# Test dm-writecache and dm-cache with different block size combinations
SKIP_WITH_LVMPOLLD=1
. lib/inittest
aux have_writecache 1 0 0 || skip
which mkfs.xfs || skip
mnt="mnt"
mkdir -p $mnt
awk 'BEGIN { while (z++ < 16384) printf "A" }' > fileA
awk 'BEGIN { while (z++ < 16384) printf "B" }' > fileB
awk 'BEGIN { while (z++ < 16384) printf "C" }' > fileC
# generate random data
dd if=/dev/urandom of=randA bs=512K count=2
dd if=/dev/urandom of=randB bs=512K count=3
dd if=/dev/urandom of=randC bs=512K count=4
_add_new_data_to_mnt() {
mount "$DM_DEV_DIR/$vg/$lv1" $mnt
# add original data
cp randA $mnt
cp randB $mnt
cp randC $mnt
mkdir $mnt/1
cp fileA $mnt/1
cp fileB $mnt/1
cp fileC $mnt/1
mkdir $mnt/2
cp fileA $mnt/2
cp fileB $mnt/2
cp fileC $mnt/2
sync
}
_add_more_data_to_mnt() {
mkdir $mnt/more
cp fileA $mnt/more
cp fileB $mnt/more
cp fileC $mnt/more
cp randA $mnt/more
cp randB $mnt/more
cp randC $mnt/more
sync
}
_verify_data_on_mnt() {
diff randA $mnt/randA
diff randB $mnt/randB
diff randC $mnt/randC
diff fileA $mnt/1/fileA
diff fileB $mnt/1/fileB
diff fileC $mnt/1/fileC
diff fileA $mnt/2/fileA
diff fileB $mnt/2/fileB
diff fileC $mnt/2/fileC
}
_verify_more_data_on_mnt() {
diff randA $mnt/more/randA
diff randB $mnt/more/randB
diff randC $mnt/more/randC
diff fileA $mnt/more/fileA
diff fileB $mnt/more/fileB
diff fileC $mnt/more/fileC
}
_verify_data_on_lv() {
lvchange -ay $vg/$lv1
mount "$DM_DEV_DIR/$vg/$lv1" $mnt
_verify_data_on_mnt
rm $mnt/randA
rm $mnt/randB
rm $mnt/randC
rm -rf $mnt/1
rm -rf $mnt/2
umount $mnt
lvchange -an $vg/$lv1
}
# Check that the LBS/PBS that were set up is accurately reported for the devs.
_check_env() {
check sysfs "$(< SCSI_DEBUG_DEV)" queue/logical_block_size "$1"
check sysfs "$(< SCSI_DEBUG_DEV)" queue/physical_block_size "$2"
blockdev --getss "$dev1"
blockdev --getpbsz "$dev1"
blockdev --getss "$dev2"
blockdev --getpbsz "$dev2"
}
#
# _run_test $BS1 $BS2 $type $optname "..."
#
# $BS1: the xfs sectsz is verified to match $BS1, after mkfs
# $BS2: the lv1 LBS is verified to match $BS2, after cache is added to lv1
# $type is cache or writecache to use in lvconvert --type $type
# $optname is either --cachevol or --cachepool to use in lvconvert
# "..." a sector size option to use in mkfs.xfs
#
_run_test() {
vgcreate $SHARED $vg "$dev1"
vgextend $vg "$dev2"
lvcreate -n $lv1 -L 300 -an $vg "$dev1"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvchange -ay $vg/$lv1
mkfs.xfs -f $5 "$DM_DEV_DIR/$vg/$lv1" |tee out
grep "sectsz=$1" out
_add_new_data_to_mnt
lvconvert --yes --type $3 $4 $lv2 $vg/$lv1
blockdev --getss "$DM_DEV_DIR/$vg/$lv1" |tee out
grep "$2" out
blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
_add_more_data_to_mnt
_verify_data_on_mnt
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
_verify_data_on_mnt
_verify_more_data_on_mnt
umount $mnt
lvchange -an $vg/$lv1
lvchange -an $vg/$lv2
_verify_data_on_lv
lvremove $vg/$lv1
lvremove $vg/$lv2
vgremove $vg
}
# Setup: LBS 512, PBS 512
aux prepare_scsi_debug_dev 602 || skip
aux prepare_devs 2 301
# Tests with fs block sizes require a libblkid version that shows BLOCK_SIZE
vgcreate $vg "$dev1"
lvcreate -n $lv1 -L300 $vg
mkfs.xfs -f "$DM_DEV_DIR/$vg/$lv1"
blkid -p "$DM_DEV_DIR/$vg/$lv1" | grep BLOCK_SIZE || skip
lvchange -an $vg
vgremove -ff $vg
_check_env "512" "512"
# lbs 512, pbs 512, xfs 512, wc bs 512
_run_test 512 512 "writecache" "--cachevol" ""
# lbs 512, pbs 512, xfs 512, cache bs 512
_run_test 512 512 "cache" "--cachevol" ""
_run_test 512 512 "cache" "--cachepool" ""
# lbs 512, pbs 512, xfs -s 4096, wc bs 4096
_run_test 4096 4096 "writecache" "--cachevol" "-s size=4096"
# lbs 512, pbs 512, xfs -s 4096, cache bs 512
_run_test 4096 512 "cache" "--cachevol" "-s size=4096"
_run_test 4096 512 "cache" "--cachepool" "-s size=4096"
aux cleanup_scsi_debug_dev
# Setup: LBS 512, PBS 4096
aux prepare_scsi_debug_dev 602 sector_size=512 physblk_exp=3
aux prepare_devs 2 301
_check_env "512" "4096"
# lbs 512, pbs 4k, xfs 4k, wc bs 4k
_run_test 4096 4096 "writecache" "--cachevol" ""
# lbs 512, pbs 4k, xfs 4k, cache bs 512
_run_test 4096 512 "cache" "--cachevol" ""
_run_test 4096 512 "cache" "--cachepool" ""
# lbs 512, pbs 4k, xfs -s 512, wc bs 512
_run_test 512 512 "writecache" "--cachevol" "-s size=512"
# lbs 512, pbs 4k, xfs -s 512, cache bs 512
_run_test 512 512 "cache" "--cachevol" "-s size=512"
_run_test 512 512 "cache" "--cachepool" "-s size=512"
aux cleanup_scsi_debug_dev
# Setup: LBS 4096, PBS 4096
# NOTE: Here we actually need PV of size 304M to get 300M ??
aux prepare_scsi_debug_dev 608 sector_size=4096 || skip
aux prepare_devs 2 304
_check_env "4096" "4096"
# lbs 4k, pbs 4k, xfs 4k, wc bs 4k
_run_test 4096 4096 "writecache" "--cachevol" ""
# lbs 4k, pbs 4k, xfs 4k, cache bs 4k
_run_test 4096 4096 "cache" "--cachevol" ""
_run_test 4096 4096 "cache" "--cachepool" ""
aux cleanup_scsi_debug_dev
# Setup: LBS 512, PBS 512
aux prepare_scsi_debug_dev 602 || skip
aux prepare_devs 2 301
_check_env "512" "512"
vgcreate $SHARED $vg "$dev1"
vgextend $vg "$dev2"
lvcreate -n $lv1 -L 300 -an $vg "$dev1"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert --yes --type writecache --cachevol $lv2 --cachesettings "block_size=4096" $vg/$lv1
lvs -o writecacheblocksize $vg/$lv1 |tee out
grep 4096 out
lvchange -ay $vg/$lv1
mkfs.xfs -f "$DM_DEV_DIR/$vg/$lv1" |tee out
grep "sectsz=4096" out
_add_new_data_to_mnt
blockdev --getss "$DM_DEV_DIR/$vg/$lv1" |tee out
grep 4096 out
blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
_add_more_data_to_mnt
_verify_data_on_mnt
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
check lv_field $vg/$lv2 segtype linear
blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
_verify_data_on_mnt
_verify_more_data_on_mnt
umount $mnt
lvchange -an $vg/$lv1
lvchange -an $vg/$lv2
_verify_data_on_lv
lvremove $vg/$lv1
lvremove $vg/$lv2
vgremove $vg
aux cleanup_scsi_debug_dev
|
