numam-spdk/test/lvol/snapshot_clone.sh
Ben Walker 6b9b448e53 build: Output executables from the app directory to build/bin
Automatically place binaries produced from the app directory
into build/bin. This matches with the output in build/lib
that already exists.

Change-Id: I13cd2da71d2f88592e22308fe8a907bf458458b5
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2379
Community-CI: Mellanox Build Bot
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
2020-06-15 15:27:16 +00:00

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#!/usr/bin/env bash
testdir=$(readlink -f $(dirname $0))
rootdir=$(readlink -f $testdir/../..)
source $rootdir/test/common/autotest_common.sh
source $rootdir/test/lvol/common.sh
source $rootdir/test/bdev/nbd_common.sh
function test_snapshot_compare_with_lvol_bdev() {
malloc_name=$(rpc_cmd bdev_malloc_create $MALLOC_SIZE_MB $MALLOC_BS)
lvs_uuid=$(rpc_cmd bdev_lvol_create_lvstore "$malloc_name" lvs_test)
# Create two lvol bdevs
lvol_size_mb=$(round_down $((LVS_DEFAULT_CAPACITY_MB / 6)))
lvol_size=$((lvol_size_mb * 1024 * 1024))
lvol_uuid1=$(rpc_cmd bdev_lvol_create -u "$lvs_uuid" lvol_test1 "$lvol_size_mb" -t)
lvol_uuid2=$(rpc_cmd bdev_lvol_create -u "$lvs_uuid" lvol_test2 "$lvol_size_mb")
# Fill thin provisoned lvol bdev with 50% of its space
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid1" /dev/nbd0
count=$((lvol_size / LVS_DEFAULT_CLUSTER_SIZE / 2))
dd if=/dev/urandom of=/dev/nbd0 oflag=direct bs="$LVS_DEFAULT_CLUSTER_SIZE" count=$count
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
# Fill whole thick provisioned lvol bdev
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid2" /dev/nbd0
count=$((lvol_size / LVS_DEFAULT_CLUSTER_SIZE))
dd if=/dev/urandom of=/dev/nbd0 oflag=direct bs="$LVS_DEFAULT_CLUSTER_SIZE" count=$count
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
# Create snapshots of lvol bdevs
snapshot_uuid1=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test1 lvol_snapshot1)
snapshot_uuid2=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test2 lvol_snapshot2)
nbd_start_disks "$DEFAULT_RPC_ADDR" "$snapshot_uuid1" /dev/nbd0
# Try to perform write operation on created snapshot
# Check if filling snapshot of lvol bdev fails
count=$((lvol_size / LVS_DEFAULT_CLUSTER_SIZE))
dd if=/dev/urandom of=/dev/nbd0 oflag=direct bs="$LVS_DEFAULT_CLUSTER_SIZE" count=$count && false
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
# Declare nbd devices as vars for an easy cross-reference
local lvol_nbd1=/dev/nbd0 lvol_nbd2=/dev/nbd1
local snapshot_nbd1=/dev/nbd2 snapshot_nbd2=/dev/nbd3
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid1" "$lvol_nbd1"
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid2" "$lvol_nbd2"
nbd_start_disks "$DEFAULT_RPC_ADDR" "$snapshot_uuid1" "$snapshot_nbd1"
nbd_start_disks "$DEFAULT_RPC_ADDR" "$snapshot_uuid2" "$snapshot_nbd2"
# Compare every lvol bdev with corresponding snapshot and check that data are the same
cmp "$lvol_nbd1" "$snapshot_nbd1"
cmp "$lvol_nbd2" "$snapshot_nbd2"
# Fill second half of thin provisioned lvol bdev
count=$((lvol_size / LVS_DEFAULT_CLUSTER_SIZE / 2))
dd if=/dev/urandom of="$lvol_nbd1" oflag=direct seek=$count bs="$LVS_DEFAULT_CLUSTER_SIZE" count=$count
# Compare thin provisioned lvol bdev with its snapshot and check if it fails
cmp "$lvol_nbd1" "$snapshot_nbd1" && false
# clean up
for bdev in "${!lvol_nbd@}" "${!snapshot_nbd@}"; do
nbd_stop_disks "$DEFAULT_RPC_ADDR" "${!bdev}"
done
rpc_cmd bdev_lvol_delete "$lvol_uuid1"
rpc_cmd bdev_get_bdevs -b "$lvol_uuid1" && false
rpc_cmd bdev_lvol_delete "$snapshot_uuid1"
rpc_cmd bdev_get_bdevs -b "$snapshot_uuid1" && false
rpc_cmd bdev_lvol_delete "$lvol_uuid2"
rpc_cmd bdev_get_bdevs -b "$lvol_uuid2" && false
rpc_cmd bdev_lvol_delete "$snapshot_uuid2"
rpc_cmd bdev_get_bdevs -b "$snapshot_uuid2" && false
rpc_cmd bdev_lvol_delete_lvstore -u "$lvs_uuid"
rpc_cmd bdev_lvol_get_lvstores -u "$lvs_uuid" && false
rpc_cmd bdev_malloc_delete "$malloc_name"
check_leftover_devices
}
# Check that when writing to lvol bdev
# creating snapshot ends with success
function test_create_snapshot_with_io() {
malloc_name=$(rpc_cmd bdev_malloc_create $MALLOC_SIZE_MB $MALLOC_BS)
lvs_uuid=$(rpc_cmd bdev_lvol_create_lvstore "$malloc_name" lvs_test)
# Create lvol bdev
lvol_size_mb=$(round_down $((LVS_DEFAULT_CAPACITY_MB / 2)))
lvol_size=$((lvol_size_mb * 1024 * 1024))
lvol_uuid=$(rpc_cmd bdev_lvol_create -u "$lvs_uuid" lvol_test "$lvol_size_mb" -t)
# Run fio in background that writes to lvol bdev
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid" /dev/nbd0
run_fio_test /dev/nbd0 0 $lvol_size "write" "0xcc" "--time_based --runtime=16" &
fio_proc=$!
sleep 4
# Create snapshot of lvol bdev
snapshot_uuid=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test lvol_snapshot)
wait $fio_proc
# Clean up
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
rpc_cmd bdev_lvol_delete "$lvol_uuid"
rpc_cmd bdev_get_bdevs -b "$lvol_uuid" && false
rpc_cmd bdev_lvol_delete "$snapshot_uuid"
rpc_cmd bdev_get_bdevs -b "$snapshot_uuid" && false
rpc_cmd bdev_lvol_delete_lvstore -u "$lvs_uuid"
rpc_cmd bdev_lvol_get_lvstores -u "$lvs_uuid" && false
rpc_cmd bdev_malloc_delete "$malloc_name"
check_leftover_devices
}
# Check that creating snapshot of snapshot will fail
function test_create_snapshot_of_snapshot() {
malloc_name=$(rpc_cmd bdev_malloc_create $MALLOC_SIZE_MB $MALLOC_BS)
lvs_uuid=$(rpc_cmd bdev_lvol_create_lvstore "$malloc_name" lvs_test)
# Create lvol bdev
lvol_size_mb=$(round_down $((LVS_DEFAULT_CAPACITY_MB / 3)))
lvol_uuid=$(rpc_cmd bdev_lvol_create -u "$lvs_uuid" lvol_test "$lvol_size_mb")
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
# Create snapshots of lvol bdev
snapshot_uuid=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test lvol_snapshot)
# Create snapshot of previously created snapshot
# and check if operation will fail
rpc_cmd bdev_lvol_snapshot lvs_test/lvol_snapshot lvol_snapshot2 && false
# Clean up
rpc_cmd bdev_lvol_delete "$lvol_uuid"
rpc_cmd bdev_get_bdevs -b "$lvol_uuid" && false
rpc_cmd bdev_lvol_delete "$snapshot_uuid"
rpc_cmd bdev_get_bdevs -b "$snapshot_uuid" && false
rpc_cmd bdev_lvol_delete_lvstore -u "$lvs_uuid"
rpc_cmd bdev_lvol_get_lvstores -u "$lvs_uuid" && false
rpc_cmd bdev_malloc_delete "$malloc_name"
check_leftover_devices
}
# Check if only clone of snapshot can be created.
# Check if writing to one clone doesn't affect other clone
# Check if relations between clones and snapshots are properly set in configuration
function test_clone_snapshot_relations() {
malloc_name=$(rpc_cmd bdev_malloc_create $MALLOC_SIZE_MB $MALLOC_BS)
lvs_uuid=$(rpc_cmd bdev_lvol_create_lvstore "$malloc_name" lvs_test)
# Calculate size and create lvol bdev
lvol_size_mb=$(round_down $((LVS_DEFAULT_CAPACITY_MB / 6)))
lvol_size=$((lvol_size_mb * 1024 * 1024))
lvol_uuid=$(rpc_cmd bdev_lvol_create -u "$lvs_uuid" lvol_test "$lvol_size_mb")
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
# Fill lvol bdev with 100% of its space
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid" /dev/nbd0
run_fio_test /dev/nbd0 0 $lvol_size "write" "0xcc"
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
# An attempt to create a clone from lvol that is rw capable should fail
rpc_cmd bdev_lvol_clone lvs_test/lvol_test clone_test && false
# Create snapshots of lvol bdev
snapshot_uuid=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test lvol_snapshot)
# Create again clone of lvol bdev and check if it fails
rpc_cmd bdev_lvol_clone lvs_test/lvol_test clone_test && false
# Create two clones of snapshot and check if it ends with success
clone_uuid1=$(rpc_cmd bdev_lvol_clone lvs_test/lvol_snapshot clone_test1)
clone_uuid2=$(rpc_cmd bdev_lvol_clone lvs_test/lvol_snapshot clone_test2)
# Perform write operation to first clone
# Change first half of its space
nbd_start_disks "$DEFAULT_RPC_ADDR" "$clone_uuid1" /dev/nbd0
fill_size=$((lvol_size / 2))
run_fio_test /dev/nbd0 0 $fill_size "write" "0xaa"
# Compare snapshot with second clone. Data on both bdevs should be the same
nbd_start_disks "$DEFAULT_RPC_ADDR" "$snapshot_uuid" /dev/nbd1
nbd_start_disks "$DEFAULT_RPC_ADDR" "$clone_uuid2" /dev/nbd2
sleep 1
cmp /dev/nbd1 /dev/nbd2
# Compare snapshot with first clone
cmp /dev/nbd0 /dev/nbd1 && false
snapshot_bdev=$(rpc_cmd bdev_get_bdevs -b "lvs_test/lvol_snapshot")
clone_bdev1=$(rpc_cmd bdev_get_bdevs -b "lvs_test/clone_test1")
clone_bdev2=$(rpc_cmd bdev_get_bdevs -b "lvs_test/lvol_test")
# Check snapshot consistency
[ "$(jq '.[].driver_specific.lvol.snapshot' <<< "$snapshot_bdev")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$snapshot_bdev")" = "false" ]
[ "$(jq '.[].driver_specific.lvol.clones|sort' <<< "$snapshot_bdev")" = "$(jq '.|sort' <<< '["lvol_test", "clone_test1", "clone_test2"]')" ]
# Check first clone consistency
[ "$(jq '.[].driver_specific.lvol.snapshot' <<< "$clone_bdev1")" = "false" ]
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$clone_bdev1")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.base_snapshot' <<< "$clone_bdev1")" = '"lvol_snapshot"' ]
# Check second clone consistency
[ "$(jq '.[].driver_specific.lvol.snapshot' <<< "$clone_bdev2")" = "false" ]
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$clone_bdev2")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.base_snapshot' <<< "$clone_bdev2")" = '"lvol_snapshot"' ]
# Destroy first clone and check if it is deleted from snapshot
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
rpc_cmd bdev_lvol_delete "$clone_uuid1"
snapshot_bdev=$(rpc_cmd bdev_get_bdevs -b "lvs_test/lvol_snapshot")
[ "$(jq '.[].driver_specific.lvol.clones|sort' <<< "$snapshot_bdev")" = "$(jq '.|sort' <<< '["lvol_test", "clone_test2"]')" ]
# Clean up
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd1
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd2
rpc_cmd bdev_lvol_delete "$lvol_uuid"
rpc_cmd bdev_lvol_delete "$clone_uuid2"
rpc_cmd bdev_lvol_delete "$snapshot_uuid"
rpc_cmd bdev_lvol_delete_lvstore -u "$lvs_uuid"
rpc_cmd bdev_malloc_delete "$malloc_name"
check_leftover_devices
}
# Testing usage of bdev_lvol_inflate
function test_clone_inflate() {
malloc_name=$(rpc_cmd bdev_malloc_create $MALLOC_SIZE_MB $MALLOC_BS)
lvs_uuid=$(rpc_cmd bdev_lvol_create_lvstore "$malloc_name" lvs_test)
# Calculate size and create lvol bdev
lvol_size_mb=$(round_down $((LVS_DEFAULT_CAPACITY_MB / 4)))
lvol_uuid=$(rpc_cmd bdev_lvol_create -u "$lvs_uuid" lvol_test "$lvol_size_mb")
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
# Fill lvol bdev with 100% of its space
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid" /dev/nbd0
run_fio_test /dev/nbd0 0 $((lvol_size_mb * 1024 * 1024)) "write" "0xcc"
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
# Create snapshots of lvol bdev
snapshot_uuid=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test lvol_snapshot)
# Create clone of snapshot
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
[ "$(jq '.[].driver_specific.lvol.thin_provision' <<< "$lvol")" = "true" ]
# Fill part of clone with data of known pattern
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid" /dev/nbd0
first_fill=0
second_fill=$((lvol_size_mb * 1024 * 1024 * 3 / 4))
run_fio_test /dev/nbd0 $first_fill $((1024 * 1024)) "write" "0xdd"
run_fio_test /dev/nbd0 $second_fill $((1024 * 1024)) "write" "0xdd"
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
# Do inflate
rpc_cmd bdev_lvol_inflate lvs_test/lvol_test
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
[ "$(jq '.[].driver_specific.lvol.thin_provision' <<< "$lvol")" = "false" ]
# Delete snapshot
rpc_cmd bdev_lvol_delete "$snapshot_uuid"
# Check data consistency
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid" /dev/nbd0
run_fio_test /dev/nbd0 $first_fill $((1024 * 1024)) "read" "0xdd"
run_fio_test /dev/nbd0 $(((first_fill + 1) * 1024 * 1024)) $((second_fill - 1024 * 1024)) "read" "0xcc"
run_fio_test /dev/nbd0 $second_fill $((1024 * 1024)) "read" "0xdd"
run_fio_test /dev/nbd0 $((second_fill + 1024 * 1024)) $((lvol_size_mb * 1024 * 1024 - (second_fill + 1024 * 1024))) "read" "0xcc"
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
# Clean up
rpc_cmd bdev_lvol_delete "$lvol_uuid"
rpc_cmd bdev_lvol_delete_lvstore -u "$lvs_uuid"
rpc_cmd bdev_malloc_delete "$malloc_name"
check_leftover_devices
}
# Create chain of snapshot<-snapshot2<-lvol_test lvol bdevs.
# Decouple lvol_test twice and delete the remaining snapshot lvol.
# Each time check consistency of snapshot-clone relations and written data.
function test_clone_decouple_parent() {
malloc_name=$(rpc_cmd bdev_malloc_create $MALLOC_SIZE_MB $MALLOC_BS)
lvs_uuid=$(rpc_cmd bdev_lvol_create_lvstore "$malloc_name" lvs_test)
# Calculate size and create lvol bdev
lvol_size_mb=$((5 * LVS_DEFAULT_CLUSTER_SIZE_MB))
lvol_uuid=$(rpc_cmd bdev_lvol_create -u "$lvs_uuid" lvol_test "$lvol_size_mb" -t)
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
# Decouple_parent should fail on lvol bdev without a parent
rpc_cmd bdev_lvol_decouple_parent lvs_test/lvol_test && false
# Fill first four out of 5 clusters of clone with data of known pattern
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid" /dev/nbd0
begin_fill=0
end_fill=$((lvol_size_mb * 4 * 1024 * 1024 / 5))
run_fio_test /dev/nbd0 $begin_fill $end_fill "write" "0xdd"
# Create snapshot (snapshot<-lvol_bdev)
snapshot_uuid=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test lvol_snapshot)
# Fill second and fourth cluster of clone with data of known pattern
start_fill=$((lvol_size_mb * 1024 * 1024 / 5))
fill_range=$start_fill
run_fio_test /dev/nbd0 $start_fill $fill_range "write" "0xcc"
start_fill=$((lvol_size_mb * 3 * 1024 * 1024 / 5))
run_fio_test /dev/nbd0 $start_fill $fill_range "write" "0xcc"
# Create snapshot (snapshot<-snapshot2<-lvol_bdev)
snapshot_uuid2=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test lvol_snapshot2)
# Fill second cluster of clone with data of known pattern
start_fill=$fill_range
run_fio_test /dev/nbd0 $start_fill $fill_range "write" "0xee"
# Check data consistency
pattern=("0xdd" "0xee" "0xdd" "0xcc" "0x00")
for i in "${!pattern[@]}"; do
start_fill=$((lvol_size_mb * i * 1024 * 1024 / 5))
run_fio_test /dev/nbd0 $start_fill $fill_range "read" "${pattern[i]}"
done
# Decouple_parent of lvol bdev resulting in two relation chains:
# - snapshot<-lvol_bdev
# - snapshot<-snapshot2
rpc_cmd bdev_lvol_decouple_parent lvs_test/lvol_test
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
snapshot=$(rpc_cmd bdev_get_bdevs -b "$snapshot_uuid")
snapshot2=$(rpc_cmd bdev_get_bdevs -b "$snapshot_uuid2")
[ "$(jq '.[].driver_specific.lvol.thin_provision' <<< "$lvol")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$lvol")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.snapshot' <<< "$lvol")" = "false" ]
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$snapshot")" = "false" ]
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$snapshot2")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.snapshot' <<< "$snapshot2")" = "true" ]
# Delete second snapshot
rpc_cmd bdev_lvol_delete "$snapshot_uuid2"
# Check data consistency
for i in "${!pattern[@]}"; do
start_fill=$((lvol_size_mb * i * 1024 * 1024 / 5))
run_fio_test /dev/nbd0 $start_fill $fill_range "read" "${pattern[i]}"
done
# Decouple_parent of lvol bdev again resulting in two relation chains:
# - lvol_bdev
# - snapshot<-snapshot2
rpc_cmd bdev_lvol_decouple_parent lvs_test/lvol_test
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
snapshot=$(rpc_cmd bdev_get_bdevs -b "$snapshot_uuid")
[ "$(jq '.[].driver_specific.lvol.thin_provision' <<< "$lvol")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$lvol")" = "false" ]
[ "$(jq '.[].driver_specific.lvol.snapshot' <<< "$lvol")" = "false" ]
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$snapshot")" = "false" ]
# Delete first snapshot
rpc_cmd bdev_lvol_delete "$snapshot_uuid"
# Check data consistency
for i in "${!pattern[@]}"; do
start_fill=$((lvol_size_mb * i * 1024 * 1024 / 5))
run_fio_test /dev/nbd0 $start_fill $fill_range "read" "${pattern[i]}"
done
# Clean up
rpc_cmd bdev_lvol_delete "$lvol_uuid"
rpc_cmd bdev_lvol_delete_lvstore -u "$lvs_uuid"
rpc_cmd bdev_malloc_delete "$malloc_name"
check_leftover_devices
}
# Set lvol bdev as read only and perform clone on it.
function test_lvol_bdev_readonly() {
malloc_name=$(rpc_cmd bdev_malloc_create $MALLOC_SIZE_MB $MALLOC_BS)
lvs_uuid=$(rpc_cmd bdev_lvol_create_lvstore "$malloc_name" lvs_test)
# Calculate size and create lvol bdev
lvol_size_mb=$(round_down $((LVS_DEFAULT_CAPACITY_MB / 2)))
lvol_uuid=$(rpc_cmd bdev_lvol_create -u "$lvs_uuid" lvol_test "$lvol_size_mb")
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
# Set lvol bdev as read only
rpc_cmd bdev_lvol_set_read_only lvs_test/lvol_test
# Try to perform write operation on lvol marked as read only
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid" /dev/nbd0
run_fio_test /dev/nbd0 0 $lvol_size "write" "0xcc" && false
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
# Create clone of lvol set to read only
clone_uuid=$(rpc_cmd bdev_lvol_clone lvs_test/lvol_test clone_test)
# Try to perform write operation on lvol clone
nbd_start_disks "$DEFAULT_RPC_ADDR" "$clone_uuid" /dev/nbd0
run_fio_test /dev/nbd0 0 $lvol_size "write" "0xcc"
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
# Clean up
rpc_cmd bdev_lvol_delete "$clone_uuid"
rpc_cmd bdev_lvol_delete "$lvol_uuid"
rpc_cmd bdev_lvol_delete_lvstore -u "$lvs_uuid"
rpc_cmd bdev_malloc_delete "$malloc_name"
check_leftover_devices
}
# Check if it is possible to delete snapshot with clone
function test_delete_snapshot_with_clone() {
malloc_name=$(rpc_cmd bdev_malloc_create $MALLOC_SIZE_MB $MALLOC_BS)
lvs_uuid=$(rpc_cmd bdev_lvol_create_lvstore "$malloc_name" lvs_test)
# Calculate size and create lvol bdev
lvol_size_mb=$(round_down $((LVS_DEFAULT_CAPACITY_MB / 2)))
lvol_size=$((lvol_size_mb * 1024 * 1024))
lvol_uuid=$(rpc_cmd bdev_lvol_create -u "$lvs_uuid" lvol_test "$lvol_size_mb")
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
# Perform write operation on lvol
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid" /dev/nbd0
run_fio_test /dev/nbd0 0 $lvol_size "write" "0xcc"
# Create snapshots of lvol bdev
snapshot_uuid=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test lvol_snapshot)
# Fill first half of lvol bdev
half_size=$((lvol_size / 2 - 1))
run_fio_test /dev/nbd0 0 $half_size "write" "0xee"
# Check if snapshot was unchanged
nbd_start_disks "$DEFAULT_RPC_ADDR" "$snapshot_uuid" /dev/nbd1
run_fio_test /dev/nbd1 0 $half_size "read" "0xcc"
# Verify lvol bdev
run_fio_test /dev/nbd0 0 $half_size "read" "0xee"
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$lvol")" = "true" ]
# Delete snapshot - should succeed
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd1
rpc_cmd bdev_lvol_delete "$snapshot_uuid"
# Check data consistency
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$lvol")" = "false" ]
run_fio_test /dev/nbd0 0 $half_size "read" "0xee"
run_fio_test /dev/nbd0 $((half_size + 1)) $half_size "read" "0xcc"
# Clean up
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
rpc_cmd bdev_lvol_delete "$lvol_uuid"
rpc_cmd bdev_lvol_delete_lvstore -u "$lvs_uuid"
rpc_cmd bdev_malloc_delete "$malloc_name"
check_leftover_devices
}
# Check if it is possible to delete snapshot with one snapshot on it
function test_delete_snapshot_with_snapshot() {
malloc_name=$(rpc_cmd bdev_malloc_create $MALLOC_SIZE_MB $MALLOC_BS)
lvs_uuid=$(rpc_cmd bdev_lvol_create_lvstore "$malloc_name" lvs_test)
# Calculate size and create lvol bdev
lvol_size_mb=$(round_down $((LVS_DEFAULT_CAPACITY_MB / 5)))
lvol_size=$((lvol_size_mb * 1024 * 1024))
lvol_uuid=$(rpc_cmd bdev_lvol_create -u "$lvs_uuid" lvol_test "$lvol_size_mb")
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
# Perform write operation on lvol
nbd_start_disks "$DEFAULT_RPC_ADDR" "$lvol_uuid" /dev/nbd0
run_fio_test /dev/nbd0 0 $lvol_size "write" "0xcc"
# Create snapshot of lvol bdev
snapshot_uuid=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test lvol_snapshot)
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
[ "$(jq '.[].driver_specific.lvol.base_snapshot' <<< "$lvol")" = '"lvol_snapshot"' ]
# Fill second 1/3 of lvol bdev
first_part=$((lvol_size / 3))
second_part=$((lvol_size * 2 / 3))
run_fio_test /dev/nbd0 $first_part $((second_part - first_part)) "write" "0xee"
# Check if snapshot was unchanged
nbd_start_disks "$DEFAULT_RPC_ADDR" "$snapshot_uuid" /dev/nbd1
run_fio_test /dev/nbd1 0 $lvol_size "read" "0xcc"
# Create second snapshot of lvol_bdev
# First snapshot becomes snapshot of second snapshot
snapshot_uuid2=$(rpc_cmd bdev_lvol_snapshot lvs_test/lvol_test lvol_snapshot2)
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
snapshot=$(rpc_cmd bdev_get_bdevs -b "$snapshot_uuid")
snapshot2=$(rpc_cmd bdev_get_bdevs -b "$snapshot_uuid2")
[ "$(jq '.[].driver_specific.lvol.base_snapshot' <<< "$snapshot2")" = '"lvol_snapshot"' ]
[ "$(jq '.[].driver_specific.lvol.clones|sort' <<< "$snapshot2")" = "$(jq '.|sort' <<< '["lvol_test"]')" ]
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$snapshot2")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.snapshot' <<< "$snapshot2")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.clones|sort' <<< "$snapshot")" = "$(jq '.|sort' <<< '["lvol_snapshot2"]')" ]
# Verify snapshots
run_fio_test /dev/nbd1 0 $size "read" "0xcc"
nbd_start_disks "$DEFAULT_RPC_ADDR" "$snapshot_uuid2" /dev/nbd2
run_fio_test /dev/nbd2 0 $((first_part - 1)) "read" "0xcc"
run_fio_test /dev/nbd2 $first_part $((second_part - first_part)) "read" "0xee"
run_fio_test /dev/nbd2 $second_part $((lvol_size - second_part)) "read" "0xcc"
# Verify lvol bdev
run_fio_test /dev/nbd0 $first_part $((second_part - first_part)) "read" "0xee"
run_fio_test /dev/nbd0 $second_part $((lvol_size - second_part)) "read" "0xcc"
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$lvol")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.base_snapshot' <<< "$lvol")" = '"lvol_snapshot2"' ]
# Fill third part of lvol bdev
run_fio_test /dev/nbd0 $second_part $((lvol_size - second_part)) "write" "0xdd"
# Verify snapshots
run_fio_test /dev/nbd1 0 $size "read" "0xcc"
run_fio_test /dev/nbd0 $second_part $((lvol_size - second_part)) "read" "0xdd"
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd2
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd1
# Delete snapshot - should succeed
rpc_cmd bdev_lvol_delete "$snapshot_uuid2"
# Check data consistency
lvol=$(rpc_cmd bdev_get_bdevs -b "$lvol_uuid")
snapshot=$(rpc_cmd bdev_get_bdevs -b "$snapshot_uuid")
[ "$(jq '.[].driver_specific.lvol.clone' <<< "$lvol")" = "true" ]
[ "$(jq '.[].driver_specific.lvol.base_snapshot' <<< "$lvol")" = '"lvol_snapshot"' ]
[ "$(jq '.[].driver_specific.lvol.clones|sort' <<< "$snapshot")" = "$(jq '.|sort' <<< '["lvol_test"]')" ]
run_fio_test /dev/nbd0 $first_part $((second_part - first_part)) "read" "0xee"
run_fio_test /dev/nbd0 $second_part $((lvol_size - second_part)) "read" "0xdd"
# Clean up
nbd_stop_disks "$DEFAULT_RPC_ADDR" /dev/nbd0
rpc_cmd bdev_lvol_delete "$snapshot_uuid"
rpc_cmd bdev_lvol_delete "$lvol_uuid"
rpc_cmd bdev_lvol_delete_lvstore -u "$lvs_uuid"
rpc_cmd bdev_malloc_delete "$malloc_name"
check_leftover_devices
}
# Test for destroying lvol bdevs in particular order.
function test_bdev_lvol_delete_ordering() {
local snapshot_name=snapshot snapshot_uuid
local clone_name=clone clone_uuid
local bdev_uuid
local lbd_name=lbd_test
local lvstore_uuid lvstore_name=lvs_name
local malloc_dev
local size
malloc_dev=$(rpc_cmd bdev_malloc_create 256 "$MALLOC_BS")
lvstore_uuid=$(rpc_cmd bdev_lvol_create_lvstore "$malloc_dev" "$lvstore_name")
get_lvs_jq bdev_lvol_get_lvstores -u "$lvstore_uuid"
[[ ${jq_out["uuid"]} == "$lvstore_uuid" ]]
[[ ${jq_out["name"]} == "$lvstore_name" ]]
[[ ${jq_out["base_bdev"]} == "$malloc_dev" ]]
size=$((jq_out["free_clusters"] * jq_out["cluster_size"] / 4 / 1024 ** 2))
bdev_uuid=$(rpc_cmd bdev_lvol_create -t -u "$lvstore_uuid" "$lbd_name" "$size")
get_bdev_jq bdev_get_bdevs -b "$bdev_uuid"
snapshot_uuid=$(rpc_cmd bdev_lvol_snapshot "${jq_out["name"]}" "$snapshot_name")
get_bdev_jq bdev_get_bdevs -b "$lvstore_name/$snapshot_name"
[[ ${jq_out["name"]} == "$snapshot_uuid" ]]
[[ ${jq_out["product_name"]} == "Logical Volume" ]]
[[ ${jq_out["aliases[0]"]} == "$lvstore_name/$snapshot_name" ]]
clone_uuid=$(rpc_cmd bdev_lvol_clone "$lvstore_name/$snapshot_name" "$clone_name")
get_bdev_jq bdev_get_bdevs -b "$lvstore_name/$clone_name"
[[ ${jq_out["name"]} == "$clone_uuid" ]]
[[ ${jq_out["product_name"]} == "Logical Volume" ]]
[[ ${jq_out["aliases[0]"]} == "$lvstore_name/$clone_name" ]]
# Try to destroy snapshot with clones and check if it fails
rpc_cmd bdev_lvol_delete "$snapshot_uuid" && false
# cleanup logical volumes
rpc_cmd bdev_lvol_delete "$bdev_uuid"
rpc_cmd bdev_lvol_delete "$clone_uuid"
rpc_cmd bdev_lvol_delete "$snapshot_uuid"
# cleanup lvstore
rpc_cmd bdev_lvol_delete_lvstore -u "$lvstore_uuid"
# cleanup malloc dev
rpc_cmd bdev_malloc_delete "$malloc_dev"
check_leftover_devices
}
$SPDK_BIN_DIR/spdk_tgt &
spdk_pid=$!
trap 'killprocess "$spdk_pid"; exit 1' SIGINT SIGTERM EXIT
waitforlisten $spdk_pid
modprobe nbd
run_test "test_snapshot_compare_with_lvol_bdev" test_snapshot_compare_with_lvol_bdev
run_test "test_create_snapshot_with_io" test_create_snapshot_with_io
run_test "test_create_snapshot_of_snapshot" test_create_snapshot_of_snapshot
run_test "test_clone_snapshot_relations" test_clone_snapshot_relations
run_test "test_clone_inflate" test_clone_inflate
run_test "test_clone_decouple_parent" test_clone_decouple_parent
run_test "test_lvol_bdev_readonly" test_lvol_bdev_readonly
run_test "test_delete_snapshot_with_clone" test_delete_snapshot_with_clone
run_test "test_delete_snapshot_with_snapshot" test_delete_snapshot_with_snapshot
run_test "test_bdev_lvol_delete_ordering" test_bdev_lvol_delete_ordering
trap - SIGINT SIGTERM EXIT
killprocess $spdk_pid