64eebbd132
The concat module can combine multiple underlying bdevs to a single bdev. It is a special raid level. You can add a new bdev to the end of the concat bdev, then the concat bdev size is increased, and it won't change the layout of the exist data. This is the major difference between concat and raid0. If you add a new underling device to raid0, the whole data layout will be changed. So the concat bdev is extentable. Change-Id: Ibbeeaf0606ff79b595320c597a5605ab9e4e13c4 Signed-off-by: Peng Yu <yupeng0921@gmail.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/11070 Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Community-CI: Mellanox Build Bot Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
123 lines
2.8 KiB
Bash
Executable File
123 lines
2.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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testdir=$(readlink -f $(dirname $0))
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rootdir=$(readlink -f $testdir/../..)
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rpc_server=/var/tmp/spdk-raid.sock
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rpc_py="$rootdir/scripts/rpc.py -s $rpc_server"
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tmp_file=$SPDK_TEST_STORAGE/raidrandtest
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source $rootdir/test/common/autotest_common.sh
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source $testdir/nbd_common.sh
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function raid_unmap_data_verify() {
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if hash blkdiscard; then
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local nbd=$1
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local rpc_server=$2
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local blksize
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blksize=$(lsblk -o LOG-SEC $nbd | grep -v LOG-SEC | cut -d ' ' -f 5)
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local rw_blk_num=4096
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local rw_len=$((blksize * rw_blk_num))
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local unmap_blk_offs=(0 1028 321)
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local unmap_blk_nums=(128 2035 456)
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local unmap_off
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local unmap_len
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# data write
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dd if=/dev/urandom of=$tmp_file bs=$blksize count=$rw_blk_num
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dd if=$tmp_file of=$nbd bs=$blksize count=$rw_blk_num oflag=direct
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blockdev --flushbufs $nbd
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# confirm random data is written correctly in raid0 device
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cmp -b -n $rw_len $tmp_file $nbd
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for ((i = 0; i < ${#unmap_blk_offs[@]}; i++)); do
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unmap_off=$((blksize * ${unmap_blk_offs[$i]}))
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unmap_len=$((blksize * ${unmap_blk_nums[$i]}))
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# data unmap on tmp_file
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dd if=/dev/zero of=$tmp_file bs=$blksize seek=${unmap_blk_offs[$i]} count=${unmap_blk_nums[$i]} conv=notrunc
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# data unmap on raid bdev
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blkdiscard -o $unmap_off -l $unmap_len $nbd
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blockdev --flushbufs $nbd
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# data verify after unmap
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cmp -b -n $rw_len $tmp_file $nbd
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done
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fi
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return 0
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}
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function on_error_exit() {
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if [ -n "$raid_pid" ]; then
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killprocess $raid_pid
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fi
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rm -f $tmp_file
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print_backtrace
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exit 1
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}
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function configure_raid_bdev() {
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local raid_level=$1
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rm -rf $testdir/rpcs.txt
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cat <<- EOL >> $testdir/rpcs.txt
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bdev_malloc_create 32 512 -b Base_1
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bdev_malloc_create 32 512 -b Base_2
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bdev_raid_create -z 64 -r $raid_level -b "Base_1 Base_2" -n raid
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EOL
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$rpc_py < $testdir/rpcs.txt
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rm -rf $testdir/rpcs.txt
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}
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function raid_function_test() {
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local raid_level=$1
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if [ $(uname -s) = Linux ] && modprobe -n nbd; then
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local nbd=/dev/nbd0
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local raid_bdev
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modprobe nbd
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$rootdir/test/app/bdev_svc/bdev_svc -r $rpc_server -i 0 -L bdev_raid &
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raid_pid=$!
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echo "Process raid pid: $raid_pid"
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waitforlisten $raid_pid $rpc_server
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configure_raid_bdev $raid_level
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raid_bdev=$($rpc_py bdev_raid_get_bdevs online | cut -d ' ' -f 1)
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if [ $raid_bdev = "" ]; then
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echo "No raid0 device in SPDK app"
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return 1
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fi
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nbd_start_disks $rpc_server $raid_bdev $nbd
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count=$(nbd_get_count $rpc_server)
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if [ $count -ne 1 ]; then
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return 1
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fi
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raid_unmap_data_verify $nbd $rpc_server
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nbd_stop_disks $rpc_server $nbd
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count=$(nbd_get_count $rpc_server)
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if [ $count -ne 0 ]; then
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return 1
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fi
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killprocess $raid_pid
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else
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echo "skipping bdev raid tests."
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fi
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return 0
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}
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trap 'on_error_exit;' ERR
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raid_function_test raid0
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raid_function_test concat
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rm -f $tmp_file
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