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git://sourceware.org/git/lvm2.git
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bdcfe8c6de
Test the different RAID lvchange scenarios under snapshot as well. This patch also updates calculations for where to write to an underlying PV when testing various syncactions.
289 lines
8.8 KiB
Bash
289 lines
8.8 KiB
Bash
#!/bin/sh
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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. lib/test
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# dm-raid v1.4.1+ contains RAID10 support
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aux target_at_least dm-raid 1 4 1 || skip
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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 d0
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local d1
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printf "#\n#\n#\n# %s/%s (%s): run_writemostly_check\n#\n#\n#\n" \
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$1 $2 `lvs --noheadings -o segtype $1/$2`
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d0=`lvs -a --noheadings -o devices $1/${2}_rimage_0 | sed s/\(.\)//`
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d0=$(sed s/^[[:space:]]*// <<< "$d0")
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d1=`lvs -a --noheadings -o devices $1/${2}_rimage_1 | sed s/\(.\)//`
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d1=$(sed s/^[[:space:]]*// <<< "$d1")
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# No writemostly flag should be there yet.
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*-$'
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_1 | grep '.*-$'
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if [ `lvs --noheadings -o segtype $1/$2` != "raid1" ]; then
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not lvchange --writemostly $d0 $1/$2
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return
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fi
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# Set the flag
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lvchange --writemostly $d0 $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*w$'
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# Running again should leave it set (not toggle)
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lvchange --writemostly $d0 $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*w$'
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# Running again with ':y' should leave it set
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lvchange --writemostly $d0:y $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*w$'
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# ':n' should unset it
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lvchange --writemostly $d0:n $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*-$'
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# ':n' again should leave it unset
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lvchange --writemostly $d0:n $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*-$'
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# ':t' toggle to set
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lvchange --writemostly $d0:t $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*w$'
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# ':t' toggle to unset
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lvchange --writemostly $d0:t $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*-$'
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# ':y' to set
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lvchange --writemostly $d0:y $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*w$'
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# Toggle both at once
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lvchange --writemostly $d0:t --writemostly $d1:t $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*-$'
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_1 | grep '.*w$'
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# Toggle both at once again
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lvchange --writemostly $d0:t --writemostly $d1:t $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*w$'
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_1 | grep '.*-$'
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# Toggle one, unset the other
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lvchange --writemostly $d0:n --writemostly $d1:t $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*-$'
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_1 | grep '.*w$'
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# Toggle one, set the other
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lvchange --writemostly $d0:y --writemostly $d1:t $1/$2
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*w$'
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_1 | grep '.*-$'
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# Partial flag supercedes writemostly flag
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aux disable_dev $d0
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*p$'
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aux enable_dev $d0
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*w$'
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# Catch Bad writebehind values
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not lvchange --writebehind "invalid" $1/$2
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not lvchange --writebehind -256 $1/$2
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# Set writebehind
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[ ! `lvs --noheadings -o writebehind $1/$2` ]
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lvchange --writebehind 512 $1/$2
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[ `lvs --noheadings -o writebehind $1/$2` -eq 512 ]
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# Converting to linear should clear flags and writebehind
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lvconvert -m 0 $1/$2 $d1
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lvconvert --type raid1 -m 1 $1/$2 $d1
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[ ! `lvs --noheadings -o writebehind $1/$2` ]
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_0 | grep '.*-$'
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lvs -a --noheadings -o lv_attr $1/${2}_rimage_1 | grep '.*-$'
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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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printf "#\n#\n#\n# %s/%s (%s): run_syncaction_check\n#\n#\n#\n" \
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$1 $2 `lvs --noheadings -o segtype $1/$2`
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aux wait_for_sync $1 $2
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device=`lvs -a --noheadings -o devices $1/${2}_rimage_1 | sed s/\(.\)//`
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device=$(sed s/^[[:space:]]*// <<< "$device")
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size=`lvs -a --noheadings -o size --units 1k $1/${2}_rimage_1 | sed s/\.00k//`
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size=$(sed s/^[[:space:]]*// <<< "$size")
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size=$(($size / 2))
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tmp=`pvs --noheadings -o mda_size --units 1k $device | sed s/\.00k//`
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tmp=$(sed s/^[[:space:]]*// <<< "$tmp")
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seek=$tmp # Jump over MDA
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tmp=`lvs -a --noheadings -o size --units 1k $1/${2}_rmeta_1 | sed s/\.00k//`
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tmp=$(sed s/^[[:space:]]*// <<< "$tmp")
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seek=$(($seek + $tmp)) # Jump over RAID metadata image
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seek=$(($seek + $size)) # Jump halfway through the RAID image
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# Check all is normal
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if ! lvs --noheadings -o lv_attr $1/$2 | grep '.*-$' ||
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[ `lvs --noheadings -o mismatches $1/$2` != 0 ]; then
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# I think this is a kernel bug. It happens randomly after
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# a RAID device creation. I think the mismatch count
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# should not be set unless a check or repair is run.
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#
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# Neil Brown disagrees that it is a bug. Says mismatch
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# count can be anything until a 'check' or 'repair' is
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# run.
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echo "Strange... RAID has mismatch count after creation."
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# Run "check" should turn up clean
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lvchange --syncaction check $1/$2
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aux wait_for_sync $1 $2
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sync
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fi
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lvs --noheadings -o lv_attr $1/$2 | grep '.*-$'
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[ `lvs --noheadings -o mismatches $1/$2` == 0 ]
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# Overwrite the last half of one of the PVs with crap
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dd if=/dev/urandom of=$device bs=1k count=$size seek=$seek
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# FIXME: Why is this necessary? caching effects?
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# I don't need to do this when testing "real" devices...
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lvchange -an $1/$2; lvchange -ay $1/$2
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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 $1/$2
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aux wait_for_sync $1 $2
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lvs --noheadings -o lv_attr $1/$2 | grep '.*m$'
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[ `lvs --noheadings -o mismatches $1/$2` != 0 ]
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# "repair" will fix discrepancies and record number fixed
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lvchange --syncaction repair $1/$2
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aux wait_for_sync $1 $2
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lvs --noheadings -o lv_attr $1/$2 | grep '.*m$'
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[ `lvs --noheadings -o mismatches $1/$2` != 0 ]
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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 $1/$2
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aux wait_for_sync $1 $2
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lvs --noheadings -o lv_attr $1/$2 | grep '.*-$'
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[ `lvs --noheadings -o mismatches $1/$2` == 0 ]
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}
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# run_refresh_check <VG> <LV>
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# Assumes "$dev2" is in the array
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run_refresh_check() {
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local size
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printf "#\n#\n#\n# %s/%s (%s): run_refresh_check\n#\n#\n#\n" \
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$1 $2 `lvs --noheadings -o segtype $1/$2`
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aux wait_for_sync $1 $2
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size=`lvs -a --noheadings -o size --units 1k $1/$2 | sed s/\.00k//`
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size=$(sed s/^[[:space:]]*// <<< "$size")
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# Disable dev2 and do some I/O to make the kernel notice
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aux disable_dev "$dev2"
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dd if=/dev/urandom of=/dev/$1/$2 bs=1k count=$size
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# Check for 'p'artial flag
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lvs --noheadings -o lv_attr $1/$2 | grep '.*p$'
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aux enable_dev "$dev2"
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# Check for 'r'efresh flag
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lvs --noheadings -o lv_attr $1/$2 | grep '.*r$'
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lvchange --refresh $1/$2
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aux wait_for_sync $1 $2
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lvs --noheadings -o lv_attr $1/$2 | grep '.*-$'
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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. If any mismatches
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# are repaired, it will show up in the 'lvs' output.
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lvchange --syncaction repair $1/$2
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aux wait_for_sync $1 $2
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lvs --noheadings -o lv_attr $1/$2 | grep '.*-$'
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}
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# run_checks <VG> <LV> [snapshot_dev]
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run_checks() {
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# Without snapshots
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if aux target_at_least dm-raid 1 1 0; then
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run_writemostly_check $1 $2
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fi
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if aux target_at_least dm-raid 1 5 0; then
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run_syncaction_check $1 $2
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fi
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if aux target_at_least dm-raid 1 5 1; then
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run_refresh_check $1 $2
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fi
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# With snapshots
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if [ ! -z $3 ]; then
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lvcreate -s $1/$2 -l 4 -n snap $3
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if aux target_at_least dm-raid 1 1 0; then
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run_writemostly_check $1 $2
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fi
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if aux target_at_least dm-raid 1 5 0; then
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run_syncaction_check $1 $2
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fi
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if aux target_at_least dm-raid 1 5 1; then
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run_refresh_check $1 $2
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fi
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lvremove -ff $1/snap
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fi
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}
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########################################################
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# MAIN
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########################################################
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lvcreate --type raid1 -m 1 -l 2 -n $lv1 $vg "$dev1" "$dev2"
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run_checks $vg $lv1 "$dev3"
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lvremove -ff $vg
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lvcreate --type raid4 -i 2 -l 4 -n $lv1 $vg "$dev1" "$dev2" "$dev3" "$dev4"
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run_checks $vg $lv1 "$dev5"
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lvremove -ff $vg
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lvcreate --type raid5 -i 2 -l 4 -n $lv1 $vg "$dev1" "$dev2" "$dev3" "$dev4"
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run_checks $vg $lv1 "$dev5"
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lvremove -ff $vg
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lvcreate --type raid6 -i 3 -l 6 -n $lv1 $vg \
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"$dev1" "$dev2" "$dev3" "$dev4" "$dev5"
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run_checks $vg $lv1 "$dev6"
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lvremove -ff $vg
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lvcreate --type raid10 -m 1 -i 2 -l 4 -n $lv1 $vg \
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"$dev1" "$dev2" "$dev3" "$dev4"
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run_checks $vg $lv1 "$dev5"
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lvremove -ff $vg
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