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git://sourceware.org/git/lvm2.git
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350 lines
10 KiB
Bash
350 lines
10 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2013 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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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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# Writemostly has been in every version since the begining
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# Device refresh in 1.5.1 upstream and 1.3.4 < x < 1.4.0 in RHEL6
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# Sync action in 1.5.0 upstream and 1.3.3 < x < 1.4.0 in RHEL6
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# Proper mismatch count 1.5.2 upstream,1.3.5 < x < 1.4.0 in RHEL6
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#
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# We will simplify and simple test for 1.5.2 and 1.3.5 < x < 1.4.0
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aux have_raid 1 3 5 &&
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! aux have_raid 1 4 0 ||
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aux have_raid 1 5 2 || skip
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# DEVICE "$dev6" is reserved for non-RAID LVs that
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# will not undergo failure
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aux prepare_vg 6
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# run_writemostly_check <VG> <LV>
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run_writemostly_check() {
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local vg=$1
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local lv=${2}${THIN_POSTFIX}
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local segtype=
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local d0
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local d1
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segtype=$(get lv_field $vg/$lv segtype -a)
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d0=$(get lv_devices $vg/${lv}_rimage_0)
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d1=$(get lv_devices $vg/${lv}_rimage_1)
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printf "#\n#\n#\n# %s/%s (%s): run_writemostly_check\n#\n#\n#\n" \
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$vg $lv $segtype
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# I've seen this sync fail. when it does, it looks like sync
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# thread has not been started... haven't repo'ed yet.
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aux wait_for_sync $vg $lv
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# No writemostly flag should be there yet.
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check lv_attr_bit health $vg/${lv}_rimage_0 "-"
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check lv_attr_bit health $vg/${lv}_rimage_1 "-"
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if [ "$segtype" != "raid1" ]; then
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not lvchange --writemostly $d0 $vg/$lv
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return
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fi
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# Set the flag
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lvchange --writemostly $d0 $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "w"
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# Running again should leave it set (not toggle)
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lvchange --writemostly $d0 $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "w"
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# Running again with ':y' should leave it set
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lvchange --writemostly $d0:y $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "w"
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# ':n' should unset it
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lvchange --writemostly $d0:n $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "-"
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# ':n' again should leave it unset
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lvchange --writemostly $d0:n $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "-"
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# ':t' toggle to set
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lvchange --writemostly $d0:t $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "w"
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# ':t' toggle to unset
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lvchange --writemostly $d0:t $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "-"
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# ':y' to set
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lvchange --writemostly $d0:y $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "w"
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# Toggle both at once
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lvchange --writemostly $d0:t --writemostly $d1:t $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "-"
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check lv_attr_bit health $vg/${lv}_rimage_1 "w"
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# Toggle both at once again
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lvchange --writemostly $d0:t --writemostly $d1:t $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "w"
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check lv_attr_bit health $vg/${lv}_rimage_1 "-"
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# Toggle one, unset the other
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lvchange --writemostly $d0:n --writemostly $d1:t $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "-"
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check lv_attr_bit health $vg/${lv}_rimage_1 "w"
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# Toggle one, set the other
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lvchange --writemostly $d0:y --writemostly $d1:t $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "w"
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check lv_attr_bit health $vg/${lv}_rimage_1 "-"
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# Partial flag supercedes writemostly flag
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aux disable_dev $d0
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check lv_attr_bit health $vg/${lv}_rimage_0 "p"
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# It is possible for the kernel to detect the failed device before
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# we re-enable it. If so, the field will be set to 'r'efresh since
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# that also takes precedence over 'w'ritemostly. If this has happened,
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# we refresh the LV and then check for 'w'.
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aux enable_dev $d0
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check lv_attr_bit health $vg/${lv}_rimage_0 "r" && lvchange --refresh $vg/$lv
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check lv_attr_bit health $vg/${lv}_rimage_0 "w"
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# Catch Bad writebehind values
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invalid lvchange --writebehind "invalid" $vg/$lv
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invalid lvchange --writebehind -256 $vg/$lv
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# Set writebehind
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check lv_field $vg/$lv raid_write_behind ""
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lvchange --writebehind 512 $vg/$lv
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check lv_field $vg/$lv raid_write_behind "512"
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# Converting to linear should clear flags and writebehind
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not lvconvert -m 0 $vg/$lv $d1
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lvconvert -y -m 0 $vg/$lv $d1
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lvconvert -y --type raid1 -m 1 $vg/$lv $d1
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check lv_field $vg/$lv raid_write_behind ""
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check lv_attr_bit health $vg/${lv}_rimage_0 "-"
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check lv_attr_bit health $vg/${lv}_rimage_1 "-"
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}
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# run_syncaction_check <VG> <LV>
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run_syncaction_check() {
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local device
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local seek
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local size
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local tmp
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local vg=$1
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local lv=${2}${THIN_POSTFIX}
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printf "#\n#\n#\n# %s/%s (%s): run_syncaction_check\n#\n#\n#\n" \
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$vg $lv "$(get lv_field "$vg/$lv" segtype -a)"
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aux wait_for_sync $vg $lv
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device=$(get lv_devices $vg/${lv}_rimage_1)
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size=$(get lv_field $vg/${lv}_rimage_1 size -a --units 1k)
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size=$(( ${size%\.00k} / 2 ))
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tmp=$(get pv_field "$device" mda_size --units 1k)
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seek=${tmp%\.00k} # Jump over MDA
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tmp=$(get lv_field $vg/${lv}_rmeta_1 size -a --units 1k)
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seek=$(( seek + ${tmp%\.00k} )) # Jump over RAID metadata image
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seek=$(( seek + size )) # Jump halfway through the RAID image
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check lv_attr_bit health $vg/$lv "-"
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check lv_field $vg/$lv raid_mismatch_count "0"
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# Overwrite the last half of one of the PVs with crap
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dd if=/dev/urandom of="$device" bs=1k count=$size seek=$seek
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sync
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# Cycle the LV so we don't grab stripe cache buffers instead
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# of reading disk. This can happen with RAID 4/5/6. You
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# may think this is bad because those buffers could prevent
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# us from seeing bad disk blocks, however, the stripe cache
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# is not long lived. (RAID1/10 are immediately checked.)
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lvchange -an $vg/$lv
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lvchange -ay $vg/$lv
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# "check" should find discrepancies but not change them
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# 'lvs' should show results
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lvchange --syncaction check $vg/$lv
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not lv_field $vg/$lv sync_percent "100.00"
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aux wait_for_sync $vg $lv
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check lv_attr_bit health $vg/$lv "m"
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not check lv_field $vg/$lv raid_mismatch_count "0"
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# "repair" will fix discrepancies
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lvchange --syncaction repair $vg/$lv
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not lv_field $vg/$lv sync_percent "100.00"
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aux wait_for_sync $vg $lv
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# Final "check" should show no mismatches
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# 'lvs' should show results
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lvchange --syncaction check $vg/$lv
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not lv_field $vg/$lv sync_percent "100.00"
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aux wait_for_sync $vg $lv
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check lv_attr_bit health $vg/$lv "-"
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check lv_field $vg/$lv raid_mismatch_count "0"
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}
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# run_refresh_check <VG> <LV>
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# Assumes "$dev2" is in the array
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run_refresh_check() {
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local size
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local sizelv
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local vg=$1
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local lv=${2}${THIN_POSTFIX}
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printf "#\n#\n#\n# %s/%s (%s): run_refresh_check\n#\n#\n#\n" \
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$vg $lv "$(get lv_field $vg/$lv segtype -a)"
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aux wait_for_sync $vg $lv
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sizelv=$vg/$lv
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test -z "$THIN_POSTFIX" || sizelv=$vg/thinlv
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size=$(get lv_field $sizelv size --units 1k)
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size=${size%\.00k}
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# Disable dev2 and do some I/O to make the kernel notice
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aux disable_dev "$dev2"
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dd if=/dev/urandom of="$DM_DEV_DIR/$sizelv" bs=1k count=$size
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sync
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# Check for 'p'artial flag
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check lv_attr_bit health $vg/$lv "p"
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dmsetup status
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lvs -a -o name,attr,devices $vg
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aux enable_dev "$dev2"
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dmsetup status
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lvs -a -o name,attr,devices $vg
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# Check for 'r'efresh flag
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check lv_attr_bit health $vg/$lv "r"
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lvchange --refresh $vg/$lv
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aux wait_for_sync $vg $lv
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check lv_attr_bit health $vg/$lv "-"
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# Writing random data above should mean that the devices
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# were out-of-sync. The refresh should have taken care
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# of properly reintegrating the device.
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lvchange --syncaction repair $vg/$lv
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aux wait_for_sync $vg $lv
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check lv_attr_bit health $vg/$lv "-"
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}
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# run_recovery_rate_check <VG> <LV>
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# Assumes "$dev2" is in the array
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run_recovery_rate_check() {
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local vg=$1
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local lv=${2}${THIN_POSTFIX}
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printf "#\n#\n#\n# %s/%s (%s): run_recovery_rate_check\n#\n#\n#\n" \
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$vg $lv "$(get lv_field $vg/$lv segtype -a)"
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lvchange --minrecoveryrate 50 $vg/$lv
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lvchange --maxrecoveryrate 100 $vg/$lv
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check lv_field $vg/$lv raid_min_recovery_rate "50"
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check lv_field $vg/$lv raid_max_recovery_rate "100"
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}
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# run_checks <VG> <LV> <"-"|snapshot_dev|"thinpool_data"|"thinpool_meta">
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run_checks() {
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THIN_POSTFIX=""
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if [ -z "$3" ]; then
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printf "#\n#\n# run_checks: Too few arguments\n#\n#\n"
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return 1
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elif [ '-' = "$3" ]; then
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printf "#\n#\n# run_checks: Simple check\n#\n#\n"
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run_writemostly_check $1 $2
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run_syncaction_check $1 $2
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run_refresh_check $1 $2
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run_recovery_rate_check $1 $2
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elif [ "thinpool_data" = "$3" ]; then
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printf "#\n#\n# run_checks: RAID as thinpool data\n#\n#\n"
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# Hey, specifying devices for thin allocation doesn't work
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# lvconvert -y --thinpool $1/$2 "$dev6"
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lvcreate -aey -L 2M -n ${2}_meta $1 "$dev6"
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lvconvert --thinpool $1/$2 --poolmetadata ${2}_meta
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lvcreate -T $1/$2 -V 1 -n thinlv
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THIN_POSTFIX="_tdata"
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run_writemostly_check $1 $2
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run_syncaction_check $1 $2
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run_refresh_check $1 $2
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run_recovery_rate_check $1 $2
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elif [ "thinpool_meta" = "$3" ]; then
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printf "#\n#\n# run_checks: RAID as thinpool metadata\n#\n#\n"
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lvrename $1/$2 ${2}_meta
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lvcreate -aey -L 2M -n $2 $1 "$dev6"
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lvconvert -y --thinpool $1/$2 --poolmetadata ${2}_meta
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lvcreate -T $1/$2 -V 1 -n thinlv
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THIN_POSTFIX="_tmeta"
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run_writemostly_check $1 $2
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run_syncaction_check $1 $2
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run_refresh_check $1 $2
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run_recovery_rate_check $1 $2
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elif [ "snapshot" = "$3" ]; then
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printf "#\n#\n# run_checks: RAID under snapshot\n#\n#\n"
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lvcreate -aey -s $1/$2 -l 4 -n snap "$dev6"
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run_writemostly_check $1 $2
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run_syncaction_check $1 $2
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run_refresh_check $1 $2
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run_recovery_rate_check $1 $2
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lvremove -ff $1/snap
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else
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printf "#\n#\n# run_checks: Invalid argument\n#\n#\n"
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return 1
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fi
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}
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run_types() {
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for i in $TEST_TYPES ; do
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lvcreate -n $lv1 $vg -L2M --type "$@"
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run_checks $vg $lv1 $i
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lvremove -ff $vg
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done
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}
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########################################################
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# MAIN
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########################################################
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TEST_TYPES="- snapshot"
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# RAID works EX in cluster
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# thinpool works EX in cluster
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# but they don't work together in a cluster yet
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# (nor does thinpool+mirror work in a cluster yet)
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test ! -e LOCAL_CLVMD && aux have_thin 1 8 0 && TEST_TYPE="$TEST_TYPES thinpool_data thinpool_meta"
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# Implicit test for 'raid1' only
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if test "${TEST_RAID:-raid1}" = raid1 ; then
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run_types raid1 -m 1 "$dev1" "$dev2"
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vgremove -ff $vg
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fi
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