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a9eaab6beb
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.
132 lines
2.5 KiB
Bash
132 lines
2.5 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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mount_dir="mnt"
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mkdir -p $mount_dir
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# generate random data
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dd if=/dev/urandom of=pattern1 bs=512K count=1
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aux prepare_devs 2 64
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vgcreate $SHARED $vg "$dev1"
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vgextend $vg "$dev2"
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lvcreate -n $lv1 -l 8 -an $vg "$dev1"
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lvcreate -n $lv2 -l 4 -an $vg "$dev2"
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# test1: create fs on LV before writecache is attached
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lvchange -ay $vg/$lv1
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mkfs.xfs -f -s size=4096 "$DM_DEV_DIR/$vg/$lv1"
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mount "$DM_DEV_DIR/$vg/$lv1" $mount_dir
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cp pattern1 $mount_dir/pattern1
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umount $mount_dir
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lvchange -an $vg/$lv1
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lvconvert --yes --type writecache --cachevol $lv2 $vg/$lv1
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check lv_field $vg/$lv1 segtype writecache
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lvs -a $vg/$lv2 --noheadings -o segtype >out
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grep linear out
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lvchange -ay $vg/$lv1
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mount "$DM_DEV_DIR/$vg/$lv1" $mount_dir
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diff pattern1 $mount_dir/pattern1
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cp pattern1 $mount_dir/pattern1b
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ls -l $mount_dir
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umount $mount_dir
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lvchange -an $vg/$lv1
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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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lvchange -ay $vg/$lv1
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lvchange -ay $vg/$lv2
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mount "$DM_DEV_DIR/$vg/$lv1" $mount_dir
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ls -l $mount_dir
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diff pattern1 $mount_dir/pattern1
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diff pattern1 $mount_dir/pattern1b
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umount $mount_dir
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lvchange -an $vg/$lv1
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lvchange -an $vg/$lv2
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# test2: create fs on LV after writecache is attached
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lvconvert --yes --type writecache --cachevol $lv2 $vg/$lv1
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check lv_field $vg/$lv1 segtype writecache
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lvs -a $vg/$lv2 --noheadings -o segtype >out
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grep linear out
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lvchange -ay $vg/$lv1
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mkfs.xfs -f -s size=4096 "$DM_DEV_DIR/$vg/$lv1"
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mount "$DM_DEV_DIR/$vg/$lv1" $mount_dir
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cp pattern1 $mount_dir/pattern1
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ls -l $mount_dir
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umount $mount_dir
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lvchange -an $vg/$lv1
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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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lvchange -ay $vg/$lv1
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lvchange -ay $vg/$lv2
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mount "$DM_DEV_DIR/$vg/$lv1" $mount_dir
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ls -l $mount_dir
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diff pattern1 $mount_dir/pattern1
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umount $mount_dir
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lvchange -an $vg/$lv1
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lvchange -an $vg/$lv2
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vgremove -ff $vg
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