| #!/bin/ksh -p |
| # |
| # CDDL HEADER START |
| # |
| # This file and its contents are supplied under the terms of the |
| # Common Development and Distribution License ("CDDL"), version 1.0. |
| # You may only use this file in accordance with the terms of version |
| # 1.0 of the CDDL. |
| # |
| # A full copy of the text of the CDDL should have accompanied this |
| # source. A copy of the CDDL is also available via the Internet at |
| # http://www.illumos.org/license/CDDL. |
| # |
| # CDDL HEADER END |
| # |
| |
| # |
| # Copyright (c) 2019 by Tim Chase. All rights reserved. |
| # Copyright (c) 2019 Lawrence Livermore National Security, LLC. |
| # |
| |
| . $STF_SUITE/include/libtest.shlib |
| . $STF_SUITE/tests/functional/trim/trim.kshlib |
| . $STF_SUITE/tests/functional/trim/trim.cfg |
| |
| # |
| # DESCRIPTION: |
| # Check various pool geometries stripe, mirror, raidz) |
| # |
| # STRATEGY: |
| # 1. Create a pool on file vdevs to trim. |
| # 2. Set 'autotrim=on' on pool. |
| # 3. Fill the pool to a known percentage of capacity. |
| # 4. Verify the vdevs contain 75% or more allocated blocks. |
| # 5. Remove all files making it possible to trim the entire pool. |
| # 6. Wait for auto trim to issue trim IOs for the free blocks. |
| # 7. Verify the disks contain 30% or less allocated blocks. |
| # 8. Repeat for test for striped, mirrored, and RAIDZ pools. |
| |
| verify_runnable "global" |
| |
| log_assert "Set 'autotrim=on' verify pool disks were trimmed" |
| |
| function cleanup |
| { |
| if poolexists $TESTPOOL; then |
| destroy_pool $TESTPOOL |
| fi |
| |
| log_must rm -f $TRIM_VDEVS |
| |
| log_must set_tunable64 zfs_trim_extent_bytes_min $trim_extent_bytes_min |
| log_must set_tunable64 zfs_trim_txg_batch $trim_txg_batch |
| log_must set_tunable64 zfs_vdev_min_ms_count $vdev_min_ms_count |
| } |
| log_onexit cleanup |
| |
| # Minimum trim size is decreased to verify all trim sizes. |
| typeset trim_extent_bytes_min=$(get_tunable zfs_trim_extent_bytes_min) |
| log_must set_tunable64 zfs_trim_extent_bytes_min 4096 |
| |
| # Reduced zfs_trim_txg_batch to make trimming more frequent. |
| typeset trim_txg_batch=$(get_tunable zfs_trim_txg_batch) |
| log_must set_tunable64 zfs_trim_txg_batch 8 |
| |
| # Increased metaslabs to better simulate larger more realistic devices. |
| typeset vdev_min_ms_count=$(get_tunable zfs_vdev_min_ms_count) |
| log_must set_tunable64 zfs_vdev_min_ms_count 32 |
| |
| typeset VDEV_MAX_MB=$(( floor(4 * MINVDEVSIZE * 0.75 / 1024 / 1024) )) |
| typeset VDEV_MIN_MB=$(( floor(4 * MINVDEVSIZE * 0.30 / 1024 / 1024) )) |
| |
| for type in "" "mirror" "raidz2"; do |
| |
| if [[ "$type" = "" ]]; then |
| VDEVS="$TRIM_VDEV1" |
| elif [[ "$type" = "mirror" ]]; then |
| VDEVS="$TRIM_VDEV1 $TRIM_VDEV2" |
| else |
| VDEVS="$TRIM_VDEV1 $TRIM_VDEV2 $TRIM_VDEV3" |
| fi |
| |
| log_must truncate -s $((4 * MINVDEVSIZE)) $VDEVS |
| log_must zpool create -f $TESTPOOL $VDEVS |
| log_must zpool set autotrim=on $TESTPOOL |
| |
| typeset availspace=$(get_prop available $TESTPOOL) |
| typeset fill_mb=$(( floor(availspace * 0.90 / 1024 / 1024) )) |
| |
| # Fill the pool, verify the vdevs are no longer sparse. |
| file_write -o create -f /$TESTPOOL/file -b 1048576 -c $fill_mb -d R |
| verify_vdevs "-ge" "$VDEV_MAX_MB" $VDEVS |
| |
| # Remove the file, wait for trim, verify the vdevs are now sparse. |
| log_must rm /$TESTPOOL/file |
| wait_trim_io $TESTPOOL "ind" 64 |
| verify_vdevs "-le" "$VDEV_MIN_MB" $VDEVS |
| |
| log_must zpool destroy $TESTPOOL |
| log_must rm -f $VDEVS |
| done |
| |
| log_pass "Auto trim successfully shrunk vdevs" |