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851b1a9606
We should never remove more extents than requested by user, so round up to next stripe boundary during lvreduce. Also this fixes round to zero sized LV bug: # lvcreate -i2 -I 64k -l10 -n lvs vg_test # lvreduce -f -l1 vg_test/lvs Rounding size (1 extents) down to stripe boundary size for segment (0 extents) WARNING: Reducing active logical volume to 0 THIS MAY DESTROY YOUR DATA (filesystem etc.) Reducing logical volume lvs to 0 Failed to suspend lvs
107 lines
3.7 KiB
Bash
Executable File
107 lines
3.7 KiB
Bash
Executable File
#!/bin/sh
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# Copyright (C) 2008 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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# 'Check extents percentage arguments'
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. lib/test
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aux prepare_vg 2 128
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lvcreate -L 64m -n $lv $vg
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# 'lvextend rejects both size and extents without PVs'
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not lvextend -l 10 -L 64m $vg/$lv 2>err
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grep "^ Please specify either size or extents but not both.\$" err
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# 'lvextend rejects both size and extents with PVs'
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not lvextend -l 10 -L 64m $vg/$lv $dev1 2>err
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grep "^ Please specify either size or extents but not both.\$" err
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# 'lvextend accepts no size or extents but one PV - bz154691'
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lvextend $vg/$lv $dev1 >out
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grep "^ Logical volume $lv successfully resized\$" out
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check pv_field $dev1 pv_free "0"
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lvremove -f $vg/$lv
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# 'lvextend computes necessary free space correctly - bz213552'
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vgsize=$(vgs -o vg_extent_count --noheadings)
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lvcreate -l $vgsize -n $lv $vg
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lvreduce -f -l $(( $vgsize / 2 )) $vg/$lv
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lvextend -l $vgsize $vg/$lv
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# 'Reset LV to original size'
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lvremove -f $vg/$lv
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lvcreate -L 64m -n $lv $vg
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# 'lvextend accepts no size but extents 100%PVS and two PVs - bz154691'
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lvextend -l +100%PVS $vg/$lv $dev1 $dev2 >out
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grep "^ Logical volume $lv successfully resized\$" out
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check pv_field $dev1 pv_free "0"
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check pv_field $dev2 pv_free "0"
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# Exercise the range overlap code. Allocate every 2 extents.
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#
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# Physical Extents
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# 1 2
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#012345678901234567890123
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#
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#aaXXaaXXaaXXaaXXaaXXaaXX - (a)llocated
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#rrrXXXrrrXXXrrrXXXrrrXXX - (r)ange on cmdline
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#ooXXXXXXoXXXooXXXXXXoXXX - (o)verlap of range and allocated
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#
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# Key: a - allocated
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# F - free
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# r - part of a range on the cmdline
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# N - not on cmdline
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#
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# Create the LV with 12 extents, allocated every other 2 extents.
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# Then extend it, with a range of PVs on the cmdline of every other 3 extents.
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# Total number of extents should be 12 + overlap = 12 + 6 = 18.
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# Thus, total size for the LV should be 18 * 4M = 72M
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#
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# 'Reset LV to 12 extents, allocate every other 2 extents'
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create_pvs=`for i in $(seq 0 4 20); do echo -n "\$dev1:$i-$(($i + 1)) "; done`
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lvremove -f $vg/$lv
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lvcreate -l 12 -n $lv $vg $create_pvs
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check lv_field $vg/$lv lv_size "48.00m"
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# 'lvextend with partially allocated PVs and extents 100%PVS with PE ranges'
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extend_pvs=`for i in $(seq 0 6 18); do echo -n "\$dev1:$i-$(($i + 2)) "; done`
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lvextend -l +100%PVS $vg/$lv $extend_pvs >out
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grep "^ Logical volume $lv successfully resized\$" out
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check lv_field $vg/$lv lv_size "72.00m"
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# Simple seg_count validation; initially create the LV with half the # of
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# extents (should be 1 lv segment), extend it (should go to 2 segments),
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# then reduce (should be back to 1)
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# FIXME: test other segment fields such as seg_size, pvseg_start, pvseg_size
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lvremove -f $vg/$lv
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pe_count=$(pvs -o pv_pe_count --noheadings $dev1)
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pe1=$(( $pe_count / 2 ))
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lvcreate -l $pe1 -n $lv $vg
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pesize=$(lvs -ovg_extent_size --units b --nosuffix --noheadings $vg/$lv)
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segsize=$(( $pe1 * $pesize / 1024 / 1024 ))m
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check lv_field $vg/$lv seg_count 1
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check lv_field $vg/$lv seg_start 0
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check lv_field $vg/$lv seg_start_pe 0
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#check lv_field $vg/$lv seg_size $segsize
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lvextend -l +$(( $pe_count * 1 )) $vg/$lv
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check lv_field $vg/$lv seg_count 2
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lvreduce -f -l -$(( $pe_count * 1 )) $vg/$lv
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check lv_field $vg/$lv seg_count 1
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# do not reduce to 0 extents
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lvremove -f $vg/$lv
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lvcreate -i2 -I 64k -l10 -n $lv $vg
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lvreduce -f -l1 $vg/$lv
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check lv_field $vg/$lv lv_size "8.00m"
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