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63 lines
1.7 KiB
Bash
63 lines
1.7 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2016-2017 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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# Exercise number of cache chunks in cache pool
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# Skips creation of real cached device for older cache targets...
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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aux have_cache 1 3 0 || skip
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aux prepare_vg 2 1000000
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# Really large cache pool data LV
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lvcreate -L1T -n cpool $vg
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# Works and pick higher chunks size then default
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lvconvert -y --type cache-pool $vg/cpool
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# Check chunk size in sectors is more then 512K
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test "$(get lv_field "$vg/cpool" chunk_size --units s --nosuffix)" -gt 1000
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lvcreate -L1M -n $lv1 $vg
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# Not let pass small chunks when caching origin
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fail lvconvert -y -H --chunksize 128K --cachepool $vg/cpool $vg/$lv1 >out 2>&1
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cat out
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grep "too small chunk size" out
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# Thought 2M is valid
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if aux have_cache 1 8 0 ; then
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# Without SMQ we run out of kernel memory easily
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lvconvert -y -H --chunksize 2M --cachepool $vg/cpool $vg/$lv1
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fi
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lvremove -f $vg
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###
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# Really large cache pool data LV
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lvcreate -L1T -n cpool $vg
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# Not allowed to create more then 10e6 chunks
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fail lvconvert -y --type cache-pool --chunksize 128K $vg/cpool
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if aux have_cache 1 8 0 ; then
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# Let operation pass when max_chunk limit is raised
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lvconvert -y --type cache-pool --chunksize 128K $vg/cpool \
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--config 'allocation/cache_pool_max_chunks=10000000'
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fi
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vgremove -f $vg
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