| Message ID | 20220527081915.2024853-10-hch@lst.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [01/10] btrfs: add a helpers for read repair testing | expand |
LGTM Reviewed-by: Anand Jain <anand.jain@oracle.com> On 5/27/22 13:49, Christoph Hellwig wrote: > Test that repair handles the case where it needs to read from more than > a single mirror on the raid1c3 profile and needs to take turns over the > mirrors to recover data for the whole read. > > Signed-off-by: Christoph Hellwig <hch@lst.de> > Reviewed-by: Qu Wenruo <wqu@suse.com> > --- > tests/btrfs/266 | 93 +++++++++++++++++++++++++++++++++++++ > tests/btrfs/266.out | 109 ++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 202 insertions(+) > create mode 100755 tests/btrfs/266 > create mode 100644 tests/btrfs/266.out > > diff --git a/tests/btrfs/266 b/tests/btrfs/266 > new file mode 100755 > index 00000000..c70e4b2e > --- /dev/null > +++ b/tests/btrfs/266 > @@ -0,0 +1,93 @@ > +#! /bin/bash > +# SPDX-License-Identifier: GPL-2.0 > +# Copyright (c) 2017 Liu Bo. All Rights Reserved. > +# Copyright (c) 2022 Christoph Hellwig. > +# > +# FS QA Test 266 > +# > +# Test that btrfs raid repair on a raid1c3 profile can repair interleaving > +# errors on all mirrors. > +# > + > +. ./common/preamble > +_begin_fstest auto quick read_repair > + > +# Import common functions. > +. ./common/filter > + > +# real QA test starts here > + > +_supported_fs btrfs > +_require_scratch_dev_pool 3 > + > +_require_odirect > +# Overwriting data is forbidden on a zoned block device > +_require_non_zoned_device "${SCRATCH_DEV}" > + > +_scratch_dev_pool_get 3 > +# step 1, create a raid1 btrfs which contains one 128k file. > +echo "step 1......mkfs.btrfs" > + > +mkfs_opts="-d raid1c3 -b 1G" > +_scratch_pool_mkfs $mkfs_opts >>$seqres.full 2>&1 > + > +_scratch_mount > + > +$XFS_IO_PROG -f -d -c "pwrite -S 0xaa -b 256K 0 256K" \ > + "$SCRATCH_MNT/foobar" | \ > + _filter_xfs_io_offset > + > +# step 2, corrupt 4k in each copy > +echo "step 2......corrupt file extent" > + > +# ensure btrfs-map-logical sees the tree updates > +sync > + > +logical=$(_btrfs_get_first_logical $SCRATCH_MNT/foobar) > + > +physical1=$(_btrfs_get_physical ${logical} 1) > +devpath1=$(_btrfs_get_device_path ${logical} 1) > + > +physical2=$(_btrfs_get_physical ${logical} 2) > +devpath2=$(_btrfs_get_device_path ${logical} 2) > + > +physical3=$(_btrfs_get_physical ${logical} 3) > +devpath3=$(_btrfs_get_device_path ${logical} 3) > + > +_scratch_unmount > + > +$XFS_IO_PROG -d -c "pwrite -S 0xbd -b 64K $physical3 64K" \ > + $devpath3 > /dev/null > + > +$XFS_IO_PROG -d -c "pwrite -S 0xba -b 64K $physical1 128K" \ > + $devpath1 > /dev/null > + > +$XFS_IO_PROG -d -c "pwrite -S 0xbb -b 64K $((physical2 + 65536)) 128K" \ > + $devpath2 > /dev/null > + > +$XFS_IO_PROG -d -c "pwrite -S 0xbc -b 64K $((physical3 + (2 * 65536))) 128K" \ > + $devpath3 > /dev/null > + > +_scratch_mount > + > +# step 3, 128k dio read (this read can repair bad copy) > +echo "step 3......repair the bad copy" > + > +_btrfs_buffered_read_on_mirror 0 3 "$SCRATCH_MNT/foobar" 0 256K > +_btrfs_buffered_read_on_mirror 1 3 "$SCRATCH_MNT/foobar" 0 256K > +_btrfs_buffered_read_on_mirror 2 3 "$SCRATCH_MNT/foobar" 0 256K > + > +_scratch_unmount > + > +echo "step 4......check if the repair worked" > +$XFS_IO_PROG -d -c "pread -v -b 512 $physical1 512" $devpath1 |\ > + _filter_xfs_io_offset > +$XFS_IO_PROG -d -c "pread -v -b 512 $physical2 512" $devpath2 |\ > + _filter_xfs_io_offset > +$XFS_IO_PROG -d -c "pread -v -b 512 $physical3 512" $devpath3 |\ > + _filter_xfs_io_offset > + > +_scratch_dev_pool_put > +# success, all done > +status=0 > +exit > diff --git a/tests/btrfs/266.out b/tests/btrfs/266.out > new file mode 100644 > index 00000000..fcf2f5b8 > --- /dev/null > +++ b/tests/btrfs/266.out > @@ -0,0 +1,109 @@ > +QA output created by 266 > +step 1......mkfs.btrfs > +wrote 262144/262144 bytes > +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) > +step 2......corrupt file extent > +step 3......repair the bad copy > +step 4......check if the repair worked > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +read 512/512 bytes > +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +read 512/512 bytes > +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ > +read 512/512 bytes > +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
diff --git a/tests/btrfs/266 b/tests/btrfs/266 new file mode 100755 index 00000000..c70e4b2e --- /dev/null +++ b/tests/btrfs/266 @@ -0,0 +1,93 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2017 Liu Bo. All Rights Reserved. +# Copyright (c) 2022 Christoph Hellwig. +# +# FS QA Test 266 +# +# Test that btrfs raid repair on a raid1c3 profile can repair interleaving +# errors on all mirrors. +# + +. ./common/preamble +_begin_fstest auto quick read_repair + +# Import common functions. +. ./common/filter + +# real QA test starts here + +_supported_fs btrfs +_require_scratch_dev_pool 3 + +_require_odirect +# Overwriting data is forbidden on a zoned block device +_require_non_zoned_device "${SCRATCH_DEV}" + +_scratch_dev_pool_get 3 +# step 1, create a raid1 btrfs which contains one 128k file. +echo "step 1......mkfs.btrfs" + +mkfs_opts="-d raid1c3 -b 1G" +_scratch_pool_mkfs $mkfs_opts >>$seqres.full 2>&1 + +_scratch_mount + +$XFS_IO_PROG -f -d -c "pwrite -S 0xaa -b 256K 0 256K" \ + "$SCRATCH_MNT/foobar" | \ + _filter_xfs_io_offset + +# step 2, corrupt 4k in each copy +echo "step 2......corrupt file extent" + +# ensure btrfs-map-logical sees the tree updates +sync + +logical=$(_btrfs_get_first_logical $SCRATCH_MNT/foobar) + +physical1=$(_btrfs_get_physical ${logical} 1) +devpath1=$(_btrfs_get_device_path ${logical} 1) + +physical2=$(_btrfs_get_physical ${logical} 2) +devpath2=$(_btrfs_get_device_path ${logical} 2) + +physical3=$(_btrfs_get_physical ${logical} 3) +devpath3=$(_btrfs_get_device_path ${logical} 3) + +_scratch_unmount + +$XFS_IO_PROG -d -c "pwrite -S 0xbd -b 64K $physical3 64K" \ + $devpath3 > /dev/null + +$XFS_IO_PROG -d -c "pwrite -S 0xba -b 64K $physical1 128K" \ + $devpath1 > /dev/null + +$XFS_IO_PROG -d -c "pwrite -S 0xbb -b 64K $((physical2 + 65536)) 128K" \ + $devpath2 > /dev/null + +$XFS_IO_PROG -d -c "pwrite -S 0xbc -b 64K $((physical3 + (2 * 65536))) 128K" \ + $devpath3 > /dev/null + +_scratch_mount + +# step 3, 128k dio read (this read can repair bad copy) +echo "step 3......repair the bad copy" + +_btrfs_buffered_read_on_mirror 0 3 "$SCRATCH_MNT/foobar" 0 256K +_btrfs_buffered_read_on_mirror 1 3 "$SCRATCH_MNT/foobar" 0 256K +_btrfs_buffered_read_on_mirror 2 3 "$SCRATCH_MNT/foobar" 0 256K + +_scratch_unmount + +echo "step 4......check if the repair worked" +$XFS_IO_PROG -d -c "pread -v -b 512 $physical1 512" $devpath1 |\ + _filter_xfs_io_offset +$XFS_IO_PROG -d -c "pread -v -b 512 $physical2 512" $devpath2 |\ + _filter_xfs_io_offset +$XFS_IO_PROG -d -c "pread -v -b 512 $physical3 512" $devpath3 |\ + _filter_xfs_io_offset + +_scratch_dev_pool_put +# success, all done +status=0 +exit diff --git a/tests/btrfs/266.out b/tests/btrfs/266.out new file mode 100644 index 00000000..fcf2f5b8 --- /dev/null +++ b/tests/btrfs/266.out @@ -0,0 +1,109 @@ +QA output created by 266 +step 1......mkfs.btrfs +wrote 262144/262144 bytes +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +step 2......corrupt file extent +step 3......repair the bad copy +step 4......check if the repair worked +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +read 512/512 bytes +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +read 512/512 bytes +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +read 512/512 bytes +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)