mirror of
git://sourceware.org/git/lvm2.git
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182 lines
4.1 KiB
Bash
182 lines
4.1 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2018 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# Test writecache usage
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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aux have_writecache 1 0 0 || skip
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which mkfs.xfs || skip
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# scsi_debug devices with 512 LBS 512 PBS
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aux prepare_scsi_debug_dev 1200
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check sysfs "$(< SCSI_DEBUG_DEV)" queue/logical_block_size "512"
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check sysfs "$(< SCSI_DEBUG_DEV)" queue/physical_block_size "512"
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aux prepare_devs 2 600
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blockdev --getss "$dev1"
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blockdev --getpbsz "$dev1"
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blockdev --getss "$dev2"
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blockdev --getpbsz "$dev2"
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mnt="mnt"
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mkdir -p $mnt
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awk 'BEGIN { while (z++ < 16384) printf "A" }' > fileA
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awk 'BEGIN { while (z++ < 16384) printf "B" }' > fileB
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awk 'BEGIN { while (z++ < 16384) printf "C" }' > fileC
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# generate random data
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dd if=/dev/urandom of=randA bs=512K count=2
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dd if=/dev/urandom of=randB bs=512K count=3
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dd if=/dev/urandom of=randC bs=512K count=4
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_add_new_data_to_mnt() {
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mkfs.xfs -f "$DM_DEV_DIR/$vg/$lv1"
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mount "$DM_DEV_DIR/$vg/$lv1" $mnt
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# add original data
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cp randA $mnt
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cp randB $mnt
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cp randC $mnt
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mkdir $mnt/1
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cp fileA $mnt/1
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cp fileB $mnt/1
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cp fileC $mnt/1
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mkdir $mnt/2
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cp fileA $mnt/2
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cp fileB $mnt/2
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cp fileC $mnt/2
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sync
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}
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_add_more_data_to_mnt() {
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mkdir $mnt/more
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cp fileA $mnt/more
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cp fileB $mnt/more
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cp fileC $mnt/more
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cp randA $mnt/more
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cp randB $mnt/more
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cp randC $mnt/more
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sync
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}
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_verify_data_on_mnt() {
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diff randA $mnt/randA
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diff randB $mnt/randB
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diff randC $mnt/randC
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diff fileA $mnt/1/fileA
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diff fileB $mnt/1/fileB
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diff fileC $mnt/1/fileC
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diff fileA $mnt/2/fileA
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diff fileB $mnt/2/fileB
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diff fileC $mnt/2/fileC
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}
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_verify_more_data_on_mnt() {
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diff randA $mnt/more/randA
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diff randB $mnt/more/randB
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diff randC $mnt/more/randC
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diff fileA $mnt/more/fileA
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diff fileB $mnt/more/fileB
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diff fileC $mnt/more/fileC
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}
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_verify_data_on_lv() {
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lvchange -ay $vg/$lv1
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mount "$DM_DEV_DIR/$vg/$lv1" $mnt
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_verify_data_on_mnt
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rm $mnt/randA
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rm $mnt/randB
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rm $mnt/randC
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rm -rf $mnt/1
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rm -rf $mnt/2
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umount $mnt
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lvchange -an $vg/$lv1
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}
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vgcreate $SHARED $vg "$dev1"
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vgextend $vg "$dev2"
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# Use a large enough size so that the cleaner will not
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# finish immediately when detaching, and will require
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# a secondary check from command top level.
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lvcreate -n $lv1 -L 560M -an $vg "$dev1"
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lvcreate -n $lv2 -L 500M -an $vg "$dev2"
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lvchange -ay $vg/$lv1
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blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
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blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
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lvconvert --yes --type writecache --cachevol $lv2 $vg/$lv1
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dmsetup table $vg-$lv1
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blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
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blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
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_add_new_data_to_mnt
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_add_more_data_to_mnt
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_verify_data_on_mnt
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dd if=/dev/zero of=$mnt/big1 bs=1M count=100 conv=fdatasync
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dd if=/dev/zero of=$mnt/big2 bs=1M count=100 conv=fdatasync
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dd if=/dev/zero of=$mnt/big3 bs=1M count=100 conv=fdatasync
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dd if=/dev/zero of=$mnt/big4 bs=1M count=100 conv=fdatasync
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lvconvert --splitcache $vg/$lv1
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check lv_field $vg/$lv1 segtype linear
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check lv_field $vg/$lv2 segtype linear
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dmsetup table $vg-$lv1
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_verify_data_on_mnt
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_verify_more_data_on_mnt
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dd if=$mnt/big4 of=/dev/null bs=1M count=100
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umount $mnt
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lvchange -an $vg/$lv1
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_verify_data_on_lv
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lvchange -an $vg/$lv2
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lvremove $vg/$lv1
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lvremove $vg/$lv2
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# Repeat similar using uncache
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lvcreate -n $lv1 -L 560M -an $vg "$dev1"
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lvcreate -n $lv2 -L 500M -an $vg "$dev2"
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lvchange -ay $vg/$lv1
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lvconvert --yes --type writecache --cachevol $lv2 $vg/$lv1
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_add_new_data_to_mnt
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_add_more_data_to_mnt
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dd if=/dev/zero of=$mnt/big1 bs=1M count=100 conv=fdatasync
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umount $mnt
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lvchange -an $vg/$lv1
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lvconvert --uncache $vg/$lv1
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check lv_field $vg/$lv1 segtype linear
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not lvs $vg/$lv2
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lvchange -ay $vg/$lv1
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mount "$DM_DEV_DIR/$vg/$lv1" $mnt
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_verify_data_on_mnt
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_verify_more_data_on_mnt
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umount $mnt
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lvchange -an $vg/$lv1
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vgremove -ff $vg
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