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test: fix lvcreate-large-raid.sh

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RAID6 LVs may not be created with --nosync or data corruption
may occur in case of device failures.  The underlying MD raid6
personality used to drive the RaidLV performs read-modify-write
updates on stripes and thus relies on properly written parity
(P and Q Syndromes) during initial synchronization.

Once on it, enhance test to create/extend more and
larger RaidLVs and check sync/nosync status.
This commit is contained in:
Heinz Mauelshagen 2016-08-09 17:45:37 +02:00
parent 3d3f62e10a
commit 48e14390c1
1 changed files with 54 additions and 19 deletions
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73
test/shell/lvcreate-large-raid.sh
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@ -1,5 +1,5 @@
#!/bin/sh
# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
# Copyright (C) 2012,2016 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
@ -21,13 +21,13 @@ aux can_use_16T || skip
aux have_raid 1 3 0 || skip
aux prepare_vg 5
aux prepare_vg 5 32
lvcreate --type snapshot -s -l 20%FREE -n $lv1 $vg --virtualsize 256T
lvcreate --type snapshot -s -l 20%FREE -n $lv2 $vg --virtualsize 256T
lvcreate --type snapshot -s -l 20%FREE -n $lv3 $vg --virtualsize 256T
lvcreate --type snapshot -s -l 20%FREE -n $lv4 $vg --virtualsize 256T
lvcreate --type snapshot -s -l 20%FREE -n $lv5 $vg --virtualsize 256T
# Fake 5 PiB volume group $vg1 via snapshot LVs
for device in "$lv1" "$lv2" "$lv3" "$lv4" "$lv5"
do
lvcreate --type snapshot -s -l 20%FREE -n $device $vg --virtualsize 1P
done
#FIXME this should be 1024T
#check lv_field $vg/$lv size "128.00m"
@ -35,41 +35,76 @@ lvcreate --type snapshot -s -l 20%FREE -n $lv5 $vg --virtualsize 256T
aux extend_filter_LVMTEST
pvcreate "$DM_DEV_DIR"/$vg/$lv[12345]
vgcreate $vg1 "$DM_DEV_DIR"/$vg/$lv[12345]
vgcreate -s 2M $vg1 "$DM_DEV_DIR"/$vg/$lv[12345]
# Delay PVs so that resynchronization doesn't fill
# the snapshots before removal of the RaidLV
for device in "$dev1" "$dev2" "$dev3" "$dev4" "$dev5"
do
aux delay_dev "$device" 0 1
done
# bz837927 START
#
# Create large RAID LVs
#
# We need '--nosync' or our virtual devices won't work
# 200 TiB raid1
lvcreate --type raid1 -m 1 -L 200T -n $lv1 $vg1 --nosync
check lv_field $vg1/$lv1 size "200.00t"
aux check_status_chars $vg1 $lv1 "AA"
lvremove -ff $vg1
for segtype in raid4 raid5 raid6; do
# 1 PiB raid1
lvcreate --type raid1 -m 1 -L 1P -n $lv1 $vg1 --nosync
check lv_field $vg1/$lv1 size "1.00p"
aux check_status_chars $vg1 $lv1 "AA"
lvremove -ff $vg1
# 750 TiB raid4/5
for segtype in raid4 raid5; do
lvcreate --type $segtype -i 3 -L 750T -n $lv1 $vg1 --nosync
check lv_field $vg1/$lv1 size "750.00t"
aux check_status_chars $vg1 $lv1 "AAAA"
lvremove -ff $vg1
done
#
# Convert large linear to RAID1 (belong in different test script?)
#
lvcreate -aey -L 200T -n $lv1 $vg1
# Need to deactivate or the up-convert will start sync'ing
lvchange -an $vg1/$lv1
lvconvert --type raid1 -m 1 $vg1/$lv1
check lv_field $vg1/$lv1 size "200.00t"
# 750 TiB raid6 (with --nosync rejection check)
[ aux have_raid 1 9 0 ] && not lvcreate --type raid6 -i 3 -L 750T -n $lv1 $vg1 --nosync
lvcreate --type raid6 -i 3 -L 750T -n $lv1 $vg1
check lv_field $vg1/$lv1 size "750.00t"
aux check_status_chars $vg1 $lv1 "aaaaa"
lvremove -ff $vg1
# 1 PiB raid6 (with --nosync rejection check), then extend up to 2 PiB
[ aux have_raid 1 9 0 ] && not lvcreate --type raid6 -i 3 -L -L 1P -n $lv1 $vg1 --nosync
lvcreate --type raid6 -i 3 -L 1P -n $lv1 $vg1
check lv_field $vg1/$lv1 size "1.00p"
aux check_status_chars $vg1 $lv1 "aaaaa"
lvextend -L +1P $vg1/$lv1
check lv_field $vg1/$lv1 size "2.00p"
aux check_status_chars $vg1 $lv1 "aaaaa"
lvremove -ff $vg1
#
# Extending large RAID LV (belong in different script?)
# Convert large 200 TiB linear to RAID1 (belong in different test script?)
#
lvcreate -aey -L 200T -n $lv1 $vg1
lvconvert --type raid1 -m 1 $vg1/$lv1
check lv_field $vg1/$lv1 size "200.00t"
aux check_status_chars $vg1 $lv1 "aa"
lvremove -ff $vg1
#
# Extending large 200 TiB RAID LV to 400 TiB (belong in different script?)
#
lvcreate --type raid1 -m 1 -L 200T -n $lv1 $vg1 --nosync
check lv_field $vg1/$lv1 size "200.00t"
aux check_status_chars $vg1 $lv1 "AA"
lvextend -L +200T $vg1/$lv1
check lv_field $vg1/$lv1 size "400.00t"
aux check_status_chars $vg1 $lv1 "AA"
lvremove -ff $vg1
# bz837927 END