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#!/bin/sh
# Copyright (C) 2014 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
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# Exercise creation of cache and cache pool volumes
# Full CLI uses --type
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# Shorthand CLI uses -H | --cache
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. lib/inittest
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aux have_cache 1 3 0 || skip
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# FIXME: parallel cache metadata allocator is crashing when used value 8000!
aux prepare_vg 5 80000
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#######################
# Cache_Pool creation #
#######################
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# TODO: Unsupported yet creation of cache pool and cached volume at once
# TODO: Introduce --pooldatasize
# TODO: Policy to determine cache pool size and cache pool name
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invalid lvcreate -H -l 1 $vg
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invalid lvcreate -H -l 1 --name $lv1 $vg
invalid lvcreate -l 1 --cache $vg
# Only cached volume could be created
invalid lvcreate -l 1 --type cache $vg
# Fails as it needs to see VG content
fail lvcreate -l 1 --type cache --cachepool $vg /pool1
fail lvcreate -l 1 --type cache --cachepool pool2 $vg
fail lvcreate -l 1 --cache $vg /pool3
fail lvcreate -l 1 -H --cachepool pool4 $vg
fail lvcreate -l 1 -H --name $lv2 $vg /pool5
fail lvcreate -l 1 -H --name $lv3 --cachepool $vg /pool6
fail lvcreate -l 1 -H --name $vg /$lv4 --cachepool pool7
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# Unlike in thin pool case - cache pool and cache volume both need size arg.
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# So we require cache pool to exist and need to fail when it's missing.
#
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# --cachepool gives implicit --cache
fail lvcreate -l 1 --cachepool pool8 $vg
# no size specified
invalid lvcreate --cachepool pool $vg | & tee err
grep "specify either size or extents" err
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# Check nothing has been created yet
check vg_field $vg lv_count 0
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# With --type cache-pool we are clear which segtype has to be created
lvcreate -l 1 --type cache-pool $vg /pool1
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check lv_field $vg /pool1 segtype "cache-pool"
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lvcreate -l 1 --type cache-pool --name $vg /pool2 $vg
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check lv_field $vg /pool2 segtype "cache-pool"
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lvcreate -l 1 --type cache-pool --cachepool $vg /pool3 $vg
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check lv_field $vg /pool3 segtype "cache-pool"
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lvcreate -l 1 --type cache-pool --cachepool $vg /pool4
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check lv_field $vg /pool4 segtype "cache-pool"
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lvcreate -l 1 --type cache-pool --cachepool pool5 $vg
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check lv_field $vg /pool5 segtype "cache-pool"
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lvcreate -l 1 --type cache-pool --name pool6 $vg
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check lv_field $vg /pool6 segtype "cache-pool"
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lvcreate -l 1 --type cache-pool --name $vg /pool7
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check lv_field $vg /pool7 segtype "cache-pool"
lvremove -f $vg
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# Validate ambiguous pool name is detected
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invalid lvcreate -l 1 --type cache-pool --cachepool pool1 $vg /pool2
invalid lvcreate -l 1 --type cache-pool --name pool3 --cachepool pool4 $vg
invalid lvcreate -l 1 --type cache-pool --name pool6 --cachepool pool6 $vg /pool7
invalid lvcreate -l 1 --type cache-pool --name pool8 $vg /pool9
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# Unsupported with cache & cache pool
invalid lvcreate --type cache-pool --discards passdown -l1 $vg
invalid lvcreate -H --discards passdown -l1 $vg
invalid lvcreate --type cache-pool --virtualsize 1T -l1 $vg
invalid lvcreate -H --virtualsize 1T -l1 $vg
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check vg_field $vg lv_count 0
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for mode in "" "--cachemode writethrough"
do
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################
# Cache creation
# Creating a cache is a two phase process
# - first, cache_pool (or origin)
# - then, the cache LV (lvcreate distinguishes supplied origin vs cache_pool)
################
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lvcreate --type cache-pool -l 1 -n pool $vg $mode
# Select automatic name for cached LV
lvcreate --type cache -l1 $vg /pool
lvcreate --type cache-pool -l 1 -n pool1 $vg $mode
lvcreate --cache -l1 -n $lv1 --cachepool $vg /pool1
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dmsetup table ${ vg } -$lv1 | grep cache # ensure it is loaded in kernel
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lvcreate --type cache-pool -l 1 -n pool2 $vg $mode
lvcreate -H -l1 -n $lv2 --cachepool pool2 $vg
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#
# Now check removals
#
# Removal of cached LV removes every related LV
check lv_field $vg /$lv1 segtype "cache"
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lvremove -f $vg /$lv1
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check lv_not_exists $vg $lv1 pool1 pool1_cdata pool1_cmeta
# to preserve cachepool use lvconvert --splitcache $vg/$lv1
# Removal of cache pool leaves origin uncached
check lv_field $vg /$lv2 segtype "cache"
lvremove -f $vg /pool2
check lv_not_exists $vg pool2 pool2_cdata pool2_cmeta
check lv_field $vg /$lv2 segtype "linear"
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lvremove -f $vg
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done
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# Conversion through lvcreate case
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# Bug 1110026
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# Create origin, then cache pool and cache the origin
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lvcreate -aey -l 2 -n $lv1 $vg
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lvcreate --type cache -l 1 $vg /$lv1
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dmsetup table ${ vg } -$lv1 | grep cache # ensure it is loaded in kernel
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# Bug 1110026 & Bug 1095843
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# Create RAID1 origin, then cache pool and cache
lvcreate -aey -l 2 --type raid1 -m1 -n $lv2 $vg
lvcreate --cache -l 1 $vg /$lv2
check lv_exists $vg /${ lv2 } _corig_rimage_0 # ensure images are properly renamed
dmsetup table ${ vg } -$lv2 | grep cache # ensure it is loaded in kernel
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lvremove -f $vg
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# Check minimum cache pool metadata size
lvcreate -l 1 --type cache-pool --poolmetadatasize 1 $vg 2>out
grep "WARNING: Minimum" out
# FIXME: This test is failing in allocator with smaller VG sizes
lvcreate -l 1 --type cache-pool --poolmetadatasize 17G $vg 2>out
grep "WARNING: Maximum" out
lvremove -f $vg
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########################################
# Cache conversion and r/w permissions #
########################################
# writeable origin and 'default' => writable cache + origin
lvcreate -an -l1 -n $vg /$lv1
lvcreate -H -l1 -n cpool1 $vg /$lv1
check lv_attr_bit perm $vg /cpool1 "w"
check lv_attr_bit perm $vg /${ lv1 } _corig "w"
check lv_attr_bit perm $vg /$lv1 "w"
# writeable origin and -pr => conversion is not supported
lvcreate -an -l1 -n $vg /$lv2
fail lvcreate -H -l1 -pr -n cpool2 $vg /$lv2
# read-only origin and -pr => read-only cache + origin
lvcreate -an -pr -l1 -n $vg /$lv3
lvcreate -an -H -l1 -pr -n cpool3 $vg /$lv3
check lv_attr_bit perm $vg /cpool3 "w"
check lv_attr_bit perm $vg /${ lv3 } _corig "r"
check lv_attr_bit perm $vg /$lv3 "r"
check inactive $vg $lv3
check inactive $vg cpool3
# read-only origin and 'default' => read-only cache + origin
lvcreate -an -pr -l1 -n $vg /$lv4
lvcreate -H -l1 -n cpool4 $vg /$lv4
check lv_attr_bit perm $vg /cpool4 "w"
check lv_attr_bit perm $vg /${ lv4 } _corig "r"
check lv_attr_bit perm $vg /$lv4 "r"
# read-only origin and -prw => conversion unsupported
lvcreate -an -pr -l1 -n $vg /$lv5
fail lvcreate -H -l1 -prw -n cpool5 $vg /$lv5
# cached volume respects permissions
lvcreate --type cache-pool -l1 -n $vg /cpool
lvcreate -H -l1 -pr -n $lv6 $vg /cpool
check lv_attr_bit perm $vg /cpool "w"
check lv_attr_bit perm $vg /$lv6 "r"
lvremove -f $vg
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########################################
# Validate args are properly preserved #
########################################
lvcreate --type cache-pool -L10 --chunksize 256 --cachemode writeback $vg /cpool1
check lv_field $vg /cpool1 chunksize "256.00k"
check lv_field $vg /cpool1 cachemode "writeback"
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lvcreate -H -L10 -n $lv1 $vg /cpool1
lvs -a -o+cachemode,chunksize $vg
check lv_field $vg /$lv1 chunksize "256.00k"
check lv_field $vg /$lv1 cachemode "writeback"
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lvcreate --type cache-pool -L10 --chunksize 256 --cachemode writethrough $vg /cpool2
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lvcreate -H -L10 --chunksize 512 --cachemode writeback -n $lv2 $vg /cpool2
check lv_field $vg /$lv2 chunksize "512.00k"
check lv_field $vg /$lv2 cachemode "writeback"
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# Chunk bigger then pool size
fail lvcreate --type cache-pool -l1 --chunksize 1G $vg /cpool3
lvcreate --type cache-pool -L10 $vg /cpool4
fail lvcreate -H -L10 --chunksize 16M $vg /cpool4
lvremove -f $vg
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lvcreate --type cache-pool -L10 $vg /cpool
lvcreate --type cache -l 1 --cachepool $vg /cpool -n corigin $vg --cachepolicy mq --cachesettings migration_threshold = 233
dmsetup status | grep $vg
dmsetup status | grep $vg -corigin | grep 'migration_threshold 233'
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lvchange -an $vg
lvchange -ay $vg
dmsetup status | grep $vg -corigin | grep 'migration_threshold 233'
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lvremove -f $vg
lvcreate --type cache-pool -L10 --cachepolicy mq --cachesettings migration_threshold = 233 $vg /cpool
lvcreate --type cache -l 1 --cachepool $vg /cpool -n corigin $vg
dmsetup status | grep $vg
dmsetup status | grep $vg -corigin | grep 'migration_threshold 233'
lvremove -f $vg
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##############################
# Test things that should fail
##############################
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# Creation of read-only cache pool is not supported
invalid lvcreate -pr --type cache-pool -l1 -n $vg /cpool
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# Atempt to use bigger chunk size then cache pool data size
fail lvcreate -l 1 --type cache-pool --chunksize 16M $vg 2>out
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grep "chunk size" out
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# Option testing
# --chunksize
# --cachepolicy
# --poolmetadatasize
# --poolmetadataspare
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lvremove -f $vg
lvcreate -n corigin -m 1 --type raid1 -l 10 $vg
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lvcreate -n cpool -H $vg /corigin -l 10
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check active $vg corigin_corig
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dmsetup table | grep ^$PREFIX | grep corigin_corig
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vgremove -ff $vg