shaba/lvm2
1
0
Fork 0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-22 17:35:59 +03:00
Code Releases Activity
21b215ee63
lvm2/test/shell/writecache.sh

273 lines
7.1 KiB
Bash
Raw Normal View History

Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
#!/usr/bin/env bash
tests: updates
2018-11-08 12:21:13 +03:00
# Copyright (C) 2018 Red Hat, Inc. All rights reserved.
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
#
# 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 writecache usage
SKIP_WITH_LVMPOLLD=1
. lib/inittest
tests: updates
2018-11-08 12:21:13 +03:00
aux have_writecache 1 0 0 || skip
which mkfs.xfs || skip
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
# scsi_debug devices with 512 LBS 512 PBS
tests: writecache adapt to 300M XFS
2022-09-06 20:00:55 +03:00
aux prepare_scsi_debug_dev 602
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
check sysfs "$(< SCSI_DEBUG_DEV)" queue/logical_block_size "512"
check sysfs "$(< SCSI_DEBUG_DEV)" queue/physical_block_size "512"
tests: writecache adapt to 300M XFS
2022-09-06 20:00:55 +03:00
aux prepare_devs 2 301
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
tests: skip tests that require blkid BLOCK_SIZE Recent commit 84bd394cf9aaa581b4bf980f764544dda26a0305 "writecache: use block size 4096 when no fs is found" changed the default writecache block size from 512 to 4096 when no file system is detected. The fs block size detection requires the libblkid BLOCK_SIZE feature, so skip tests on systems without this. Otherwise, 4096 writecache added to 512 xfs leads fs io or mount failures.
2021-06-30 19:56:42 +03:00
# Tests with fs block sizes require a libblkid version that shows BLOCK_SIZE
vgcreate $vg "$dev1"
tests: writecache adapt to 300M XFS
2022-09-06 20:00:55 +03:00
lvcreate -n $lv1 -L 300 $vg
tests: skip tests that require blkid BLOCK_SIZE Recent commit 84bd394cf9aaa581b4bf980f764544dda26a0305 "writecache: use block size 4096 when no fs is found" changed the default writecache block size from 512 to 4096 when no file system is detected. The fs block size detection requires the libblkid BLOCK_SIZE feature, so skip tests on systems without this. Otherwise, 4096 writecache added to 512 xfs leads fs io or mount failures.
2021-06-30 19:56:42 +03:00
mkfs.xfs -f "$DM_DEV_DIR/$vg/$lv1"
fix fs block size detection blkid_get_tag_value() is not a reliable way to query the fs BLOCK_SIZE, so use the "probe" functions instead.
2022-09-09 23:16:56 +03:00
blkid -p "$DM_DEV_DIR/$vg/$lv1" | grep BLOCK_SIZE || skip
tests: skip tests that require blkid BLOCK_SIZE Recent commit 84bd394cf9aaa581b4bf980f764544dda26a0305 "writecache: use block size 4096 when no fs is found" changed the default writecache block size from 512 to 4096 when no file system is detected. The fs block size detection requires the libblkid BLOCK_SIZE feature, so skip tests on systems without this. Otherwise, 4096 writecache added to 512 xfs leads fs io or mount failures.
2021-06-30 19:56:42 +03:00
lvchange -an $vg
vgremove -ff $vg
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
# scsi_debug devices with 512 LBS and 4K PBS
#aux prepare_scsi_debug_dev 256 sector_size=512 physblk_exp=3
#check sysfs "$(< SCSI_DEBUG_DEV)" queue/logical_block_size "512"
#check sysfs "$(< SCSI_DEBUG_DEV)" queue/physical_block_size "4096"
#aux prepare_devs 2 64
# loop devs with 512 LBS and 512 PBS
#dd if=/dev/zero of=loopa bs=$((1024*1024)) count=64 2> /dev/null
#dd if=/dev/zero of=loopb bs=$((1024*1024)) count=64 2> /dev/null
#LOOP1=$(losetup -f loopa --show)
#LOOP2=$(losetup -f loopb --show)
#aux extend_filter "a|$LOOP1|"
#aux extend_filter "a|$LOOP2|"
#aux lvmconf 'devices/scan = "/dev"'
#dev1=$LOOP1
#dev2=$LOOP2
# loop devs with 4096 LBS and 4096 PBS
#dd if=/dev/zero of=loopa bs=$((1024*1024)) count=64 2> /dev/null
#dd if=/dev/zero of=loopb bs=$((1024*1024)) count=64 2> /dev/null
#LOOP1=$(losetup -f loopa --sector-size 4096 --show)
#LOOP2=$(losetup -f loopb --sector-size 4096 --show)
#aux extend_filter "a|$LOOP1|"
#aux extend_filter "a|$LOOP2|"
#aux lvmconf 'devices/scan = "/dev"'
#dev1=$LOOP1
#dev2=$LOOP2
# the default is brd ram devs with 512 LBS 4K PBS
# aux prepare_devs 2 64
blockdev --getss "$dev1"
blockdev --getpbsz "$dev1"
blockdev --getss "$dev2"
blockdev --getpbsz "$dev2"
mnt="mnt"
mkdir -p $mnt
tests: use faster awk generator Shortens log length.
2020-09-19 16:57:29 +03:00
awk 'BEGIN { while (z++ < 16384) printf "A" }' > fileA
awk 'BEGIN { while (z++ < 16384) printf "B" }' > fileB
awk 'BEGIN { while (z++ < 16384) printf "C" }' > fileC
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
# generate random data
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
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() {
mkfs.xfs -f "$DM_DEV_DIR/$vg/$lv1"
mount "$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
}
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
vgcreate $SHARED $vg "$dev1"
vgextend $vg "$dev2"
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
blockdev --getss "$dev1"
blockdev --getpbsz "$dev1"
blockdev --getss "$dev2"
blockdev --getpbsz "$dev2"
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
# Test attach while inactive, detach while inactive
# create fs on LV before writecache is attached
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
tests: writecache adapt to 300M XFS
2022-09-06 20:00:55 +03:00
lvcreate -n $lv1 -L 300 -an $vg "$dev1"
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
lvchange -ay $vg/$lv1
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
_add_new_data_to_mnt
umount $mnt
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
lvchange -an $vg/$lv1
Use "cachevol" to refer to cache on a single LV and "cachepool" to refer to a cache on a cache pool object. The problem was that the --cachepool option was being used to refer to both a cache pool object, and to a standard LV used for caching. This could be somewhat confusing, and it made it less clear when each kind would be used. By separating them, it's clear when a cachepool or a cachevol should be used. Previously: - lvm would use the cache pool approach when the user passed a cache-pool LV to the --cachepool option. - lvm would use the cache vol approach when the user passed a standard LV in the --cachepool option. Now: - lvm will always use the cache pool approach when the user uses the --cachepool option. - lvm will always use the cache vol approach when the user uses the --cachevol option.
2019-01-30 18:55:34 +03:00
lvconvert --yes --type writecache --cachevol $lv2 $vg/$lv1
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
check lv_field $vg/$lv1 segtype writecache
writecache: add cvol suffix to attached cachevol When an LV is used as a writecache cachevol, give it the LV name a _cvol suffix. Remove the suffix when the cachevol is detached, restoring the original LV name.
2019-10-16 00:03:34 +03:00
lvs -a $vg/${lv2}_cvol --noheadings -o segtype >out
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
grep linear out
lvchange -ay $vg/$lv1
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
mount "$DM_DEV_DIR/$vg/$lv1" $mnt
_add_more_data_to_mnt
_verify_data_on_mnt
_verify_more_data_on_mnt
umount $mnt
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
lvchange -an $vg/$lv1
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
check lv_field $vg/$lv2 segtype linear
lvchange -ay $vg/$lv1
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
lvchange -an $vg/$lv1
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
_verify_data_on_lv
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
lvchange -an $vg/$lv2
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
lvremove $vg/$lv1
lvremove $vg/$lv2
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
# Test attach while inactive, detach while inactive
# create fs on LV after writecache is attached
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
tests: writecache adapt to 300M XFS
2022-09-06 20:00:55 +03:00
lvcreate -n $lv1 -L 300 -an $vg "$dev1"
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
Use "cachevol" to refer to cache on a single LV and "cachepool" to refer to a cache on a cache pool object. The problem was that the --cachepool option was being used to refer to both a cache pool object, and to a standard LV used for caching. This could be somewhat confusing, and it made it less clear when each kind would be used. By separating them, it's clear when a cachepool or a cachevol should be used. Previously: - lvm would use the cache pool approach when the user passed a cache-pool LV to the --cachepool option. - lvm would use the cache vol approach when the user passed a standard LV in the --cachepool option. Now: - lvm will always use the cache pool approach when the user uses the --cachepool option. - lvm will always use the cache vol approach when the user uses the --cachevol option.
2019-01-30 18:55:34 +03:00
lvconvert --yes --type writecache --cachevol $lv2 $vg/$lv1
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
check lv_field $vg/$lv1 segtype writecache
writecache: add cvol suffix to attached cachevol When an LV is used as a writecache cachevol, give it the LV name a _cvol suffix. Remove the suffix when the cachevol is detached, restoring the original LV name.
2019-10-16 00:03:34 +03:00
lvs -a $vg/${lv2}_cvol --noheadings -o segtype >out
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
grep linear out
lvchange -ay $vg/$lv1
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
_add_new_data_to_mnt
umount $mnt
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
lvchange -an $vg/$lv1
lvconvert --splitcache $vg/$lv1
lvchange -ay $vg/$lv1
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
mount "$DM_DEV_DIR/$vg/$lv1" $mnt
_add_more_data_to_mnt
_verify_data_on_mnt
_verify_more_data_on_mnt
umount $mnt
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
lvchange -an $vg/$lv1
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
_verify_data_on_lv
lvremove $vg/$lv1
lvremove $vg/$lv2
writecache: drop real dm suffix fixes the problem of adding writecache to an active LV
2020-02-17 21:14:13 +03:00
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
# Test attach while active, detach while active
writecache: drop real dm suffix fixes the problem of adding writecache to an active LV
2020-02-17 21:14:13 +03:00
tests: writecache adapt to 300M XFS
2022-09-06 20:00:55 +03:00
lvcreate -n $lv1 -L 300 -an $vg "$dev1"
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
writecache: drop real dm suffix fixes the problem of adding writecache to an active LV
2020-02-17 21:14:13 +03:00
lvchange -ay $vg/$lv1
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
_add_new_data_to_mnt
lvconvert --yes --type writecache --cachevol $lv2 $vg/$lv1
blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
blockdev --getpbsz "$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
writecache: drop real dm suffix fixes the problem of adding writecache to an active LV
2020-02-17 21:14:13 +03:00
lvchange -an $vg/$lv1
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
lvchange -an $vg/$lv2
_verify_data_on_lv
writecache: drop real dm suffix fixes the problem of adding writecache to an active LV
2020-02-17 21:14:13 +03:00
lvremove $vg/$lv1
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
lvremove $vg/$lv2
writecache: drop real dm suffix fixes the problem of adding writecache to an active LV
2020-02-17 21:14:13 +03:00
tests: writecache tests backport updates from later commits
2020-06-11 00:08:28 +03:00
# Test attach while active, detach while active,
# skip cleaner so flush message is used instead
tests: writecache adapt to 300M XFS
2022-09-06 20:00:55 +03:00
lvcreate -n $lv1 -L 300 -an $vg "$dev1"
tests: enable writecache test that uses cleaner
2020-06-22 19:52:14 +03:00
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvchange -ay $vg/$lv1
_add_new_data_to_mnt
lvconvert --yes --type writecache --cachevol $lv2 $vg/$lv1
blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
_add_more_data_to_mnt
_verify_data_on_mnt
lvconvert --splitcache --cachesettings cleaner=0 $vg/$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
tests: writecache adapt to 300M XFS
2022-09-06 20:00:55 +03:00
Add dm-writecache support dm-writecache is used like dm-cache with a standard LV as the cache. $ lvcreate -n main -L 128M -an foo /dev/loop0 $ lvcreate -n fast -L 32M -an foo /dev/pmem0 $ lvconvert --type writecache --cachepool fast foo/main $ lvs -a foo -o+devices LV VG Attr LSize Origin Devices [fast] foo -wi------- 32.00m /dev/pmem0(0) main foo Cwi------- 128.00m [main_wcorig] main_wcorig(0) [main_wcorig] foo -wi------- 128.00m /dev/loop0(0) $ lvchange -ay foo/main $ dmsetup table foo-main_wcorig: 0 262144 linear 7:0 2048 foo-main: 0 262144 writecache p 253:4 253:3 4096 0 foo-fast: 0 65536 linear 259:0 2048 $ lvchange -an foo/main $ lvconvert --splitcache foo/main $ lvs -a foo -o+devices LV VG Attr LSize Devices fast foo -wi------- 32.00m /dev/pmem0(0) main foo -wi------- 128.00m /dev/loop0(0)
2018-08-27 22:53:09 +03:00
vgremove -ff $vg
Copy Permalink