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6a60841631
These tests use lsblk to find the sector size of a disk. FreeBSD doesn't have lsblk. Use diskinfo -v to get sector size on FreeBSD. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Igor Kozhukhov <igor@dilos.org>\ Reviewed-by: John Kennedy <john.kennedy@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ryan Moeller <ryan@iXsystems.com> Closes #10033
136 lines
3.7 KiB
Bash
Executable File
136 lines
3.7 KiB
Bash
Executable File
#!/bin/ksh -p
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#
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# This file and its contents are supplied under the terms of the
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# Common Development and Distribution License ("CDDL"), version 1.0.
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# You may only use this file in accordance with the terms of version
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# 1.0 of the CDDL.
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#
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# A full copy of the text of the CDDL should have accompanied this
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# source. A copy of the CDDL is also available via the Internet at
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# http://www.illumos.org/license/CDDL.
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#
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#
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# Copyright 2019 Joyent, Inc.
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#
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. $STF_SUITE/include/libtest.shlib
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. $STF_SUITE/tests/functional/refreserv/refreserv.cfg
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#
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# DESCRIPTION:
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# raidz refreservation=auto accounts for extra parity and skip blocks
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#
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# STRATEGY:
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# 1. Create a pool with a single raidz vdev
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# 2. For each block size [512b, 1k, 128k] or [4k, 8k, 128k]
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# - create a volume
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# - fully overwrite it
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# - verify that referenced is less than or equal to reservation
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# - destroy the volume
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# 3. Destroy the pool
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# 4. Recreate the pool with one more disk in the vdev, then repeat steps
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# 2 and 3.
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# 5. Repeat all steps above for raidz2 and raidz3.
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#
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# NOTES:
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# 1. This test will use up to 14 disks but can cover the key concepts with
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# 5 disks.
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# 2. If the disks are a mixture of 4Kn and 512n/512e, failures are likely.
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#
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verify_runnable "global"
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typeset -a alldisks=($DISKS)
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# The larger the volsize, the better zvol_volsize_to_reservation() is at
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# guessing the right number. At 10M on ashift=12, the estimate may be over 26%
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# too high.
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volsize=100
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function cleanup
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{
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default_cleanup_noexit
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default_setup_noexit "${alldisks[0]}"
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}
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log_assert "raidz refreservation=auto accounts for extra parity and skip blocks"
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log_onexit cleanup
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poolexists "$TESTPOOL" && log_must_busy zpool destroy "$TESTPOOL"
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# Testing tiny block sizes on ashift=12 pools causes so much size inflation
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# that small test disks may fill before creating small volumes. However,
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# testing 512b and 1K blocks on ashift=9 pools is an ok approximation for
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# testing the problems that arise from 4K and 8K blocks on ashift=12 pools.
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if is_freebsd; then
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bps=$(diskinfo -v ${alldisks[0]} | awk '/sectorsize/ { print $1 }')
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elif is_linux; then
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bps=$(lsblk -nrdo min-io /dev/${alldisks[0]})
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fi
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log_must test "$bps" -eq 512 -o "$bps" -eq 4096
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case "$bps" in
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512)
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allshifts=(9 10 17)
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maxpct=151
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;;
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4096)
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allshifts=(12 13 17)
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maxpct=110
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;;
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*)
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log_fail "bytes/sector: $bps != (512|4096)"
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;;
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esac
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log_note "Testing in ashift=${allshifts[0]} mode"
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# This loop handles all iterations of steps 1 through 4 described in strategy
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# comment above,
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for parity in 1 2 3; do
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raid=raidz$parity
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# Ensure we hit scenarios with and without skip blocks
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for ndisks in $((parity * 2)) $((parity * 2 + 1)); do
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typeset -a disks=(${alldisks[0..$((ndisks - 1))]})
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if (( ${#disks[@]} < ndisks )); then
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log_note "Too few disks to test $raid-$ndisks"
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continue
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fi
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log_must zpool create "$TESTPOOL" "$raid" "${disks[@]}"
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for bits in "${allshifts[@]}"; do
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vbs=$((1 << bits))
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log_note "Testing $raid-$ndisks volblocksize=$vbs"
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vol=$TESTPOOL/$TESTVOL
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log_must zfs create -V ${volsize}m \
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-o volblocksize=$vbs "$vol"
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block_device_wait "/dev/zvol/$vol"
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log_must dd if=/dev/zero of=/dev/zvol/$vol \
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bs=1024k count=$volsize
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sync
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ref=$(zfs get -Hpo value referenced "$vol")
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refres=$(zfs get -Hpo value refreservation "$vol")
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log_must test -n "$ref"
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log_must test -n "$refres"
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typeset -F2 deltapct=$((refres * 100.0 / ref))
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log_note "$raid-$ndisks refreservation $refres" \
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"is $deltapct% of reservation $res"
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log_must test "$ref" -le "$refres"
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log_must test "$deltapct" -le $maxpct
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log_must_busy zfs destroy "$vol"
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block_device_wait
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done
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log_must_busy zpool destroy "$TESTPOOL"
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done
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done
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log_pass "raidz refreservation=auto accounts for extra parity and skip blocks"
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