strange behavior of --inplace on ZFS

Pavel Herrmann morpheus.ibis at gmail.com
Thu Mar 6 17:00:54 MST 2014


Hi

On Thursday 06 March 2014 18:52:44 Kevin Korb wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> The Linux equivilent to mkfile is truncate --size.

Thanks for the tip

however, this produces the exactly same results as dd if=/dev/zero...

regards
Pavel Herrmann

> 
> On 03/06/2014 06:50 PM, Pavel Herrmann wrote:
> > Hi
> > 
> > apologies for reordering the message parts, and for the long bit at
> > the end
> > 
> > On Thursday 06 March 2014 23:45:22 Hendrik Visage wrote:
> >> Question: The source and destination folder host OS and are both
> >> sides ZFS?
> > 
> > no, the remote (source) was ext4. However, i plan to use it against
> > at least one NTFS machine as well
> > 
> >> I'd like to see some stats that rsync said it transfered, also
> >> add the -S flag as an extra set of tests.
> > 
> > --sparse had the opposite result, minimal size for zeroed file, no
> > space saved for random file. combination of --sparse and --inplace
> > is not supported
> > 
> >> When you are on Solaris, also see the impact of a test case
> >> using mkfile and not dd if=/dev/zero.
> > 
> > sadly, I have no Solaris in my environment, all test were done on
> > Linux
> > 
> >> On Thu, Mar 6, 2014 at 11:17 PM,  <devzero at web.de> wrote:
> >>> Hi Pavel,
> >>> 
> >>> maybe that´s related to zfs compression ?
> >>> 
> >>> on compressed zfs filesystem, zeroes are not written to disk.
> > 
> > compression was not turned on on the volume (unless this is enabled
> > even if compression is set to off)
> > 
> >>> # dd if=/dev/zero of=test.dat bs=1024k count=100
> >>> 
> >>> /zfspool # ls -la total 8 drwxr-xr-x  3 root root         4 Feb
> >>> 26 10:18 . drwxr-xr-x 27 root root      4096 Mar 29  2013 ..
> >>> drwxr-xr-x 25 root root        25 Mar 29  2013 backup
> >>> -rw-r--r--  1 root root 104857600 Feb 26 10:18 test.dat
> >>> 
> >>> /zfspool # du -k test.dat 1       test.dat
> >>> 
> >>> /zfspool # du -k --apparent-size test.dat 102400  test.dat
> >>> 
> >>> despite that, space calculation on compressed fs is a difficult
> >>> thing...
> > 
> > space was as reported by 'zfs list', on a volume that was created
> > specifically for this test. I would assume that is the most
> > reliable way to get space usage
> > 
> >> The other Question that would be interested (both with and
> >> without -S) is when you use the dd if=/dev/urandom created file,
> >> but change some places with dd =/dev/zero (ie the reverse of the
> >> A test case, creatin with dd if=/dev/zero and changes with dd
> >> if=/dev/urandom)
> > 
> > I just rerun all the tests with --sparse and --inplace, results
> > follow (cleanup is done after each 'zfs list', not shown)
> > 
> > 
> > thanks Pavel Herrmann
> > 
> > 
> > 
> > 
> > 
> > zero-inited file
> > 
> > remote runs: # dd if=/dev/zero of=testfile bs=1024 count=102400 #
> > dd if=/dev/urandom of=testfile count=1 bs=1024 seek=854
> > conv=notrunc # dd if=/dev/urandom of=testfile count=1 bs=1024
> > seek=45368 conv=notrunc # dd if=/dev/urandom of=testfile count=50
> > bs=1024 seek=9647 conv=notrunc
> > 
> > 
> > # rsync -aHAv --stats --delete --sparse root at remote:/test/ .
> > receiving incremental file list ./ testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 1
> > (reg: 1) Number of regular files transferred: 1 Total file size:
> > 104,857,600 bytes Total transferred file size: 104,857,600 bytes
> > Literal data: 104,857,600 bytes Matched data: 0 bytes File list
> > size: 50 File list generation time: 0.001 seconds File list
> > transfer time: 0.000 seconds Total bytes sent: 33 Total bytes
> > received: 104,870,500
> > 
> > sent 33 bytes  received 104,870,500 bytes  41,948,213.20 bytes/sec
> > total size is 104,857,600  speedup is 1.00 # zfs snapshot
> > zraid/test at a # rsync -aHAv --stats --delete --sparse
> > root at remote:/test/ . receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 10,240 bytes Matched data: 104,847,360 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 51,301
> > 
> > sent 71,710 bytes  received 51,301 bytes  82,007.33 bytes/sec total
> > size is 104,857,600  speedup is 852.42 # zfs snapshot zraid/test at b
> > # rsync -aHAv --stats --delete --sparse root at remote:/test/ .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 10,240 bytes Matched data: 104,847,360 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 51,301
> > 
> > sent 71,710 bytes  received 51,301 bytes  82,007.33 bytes/sec total
> > size is 104,857,600  speedup is 852.42 # zfs snapshot zraid/test at c
> > # rsync -aHAv --stats --delete --sparse root at remote:/test/ .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 61,440 bytes Matched data: 104,796,160 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 102,489
> > 
> > sent 71,710 bytes  received 102,489 bytes  116,132.67 bytes/sec
> > total size is 104,857,600  speedup is 601.94
> > 
> > # zfs list NAME                                USED  AVAIL  REFER
> > MOUNTPOINT <snip> zraid/test                         1.43M  3.44T
> > 616K  legacy
> > 
> > 
> > 
> > # rsync -aHAv --stats --delete --inplace root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 104,857,600 bytes Matched data: 0 bytes File list size: 50 File
> > list generation time: 0.001 seconds File list transfer time: 0.000
> > seconds Total bytes sent: 71,710 Total bytes received: 104,870,497
> > 
> > sent 71,710 bytes  received 104,870,497 bytes  29,983,487.71
> > bytes/sec total size is 104,857,600  speedup is 1.00 # zfs snapshot
> > zraid/test at a # rsync -aHAv --stats --delete --inplace
> > root at remote:/test/  . receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 10,240 bytes Matched data: 104,847,360 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 51,301
> > 
> > sent 71,710 bytes  received 51,301 bytes  82,007.33 bytes/sec total
> > size is 104,857,600  speedup is 852.42 # zfs snapshot zraid/test at b
> > # rsync -aHAv --stats --delete --inplace root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 10,240 bytes Matched data: 104,847,360 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 51,301
> > 
> > sent 71,710 bytes  received 51,301 bytes  82,007.33 bytes/sec total
> > size is 104,857,600  speedup is 852.42 # zfs snapshot zraid/test at c
> > # rsync -aHAv --stats --delete --inplace root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 61,440 bytes Matched data: 104,796,160 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 102,489
> > 
> > sent 71,710 bytes  received 102,489 bytes  69,679.60 bytes/sec
> > total size is 104,857,600  speedup is 601.94 # zfs list NAME
> > USED  AVAIL  REFER  MOUNTPOINT <snip> zraid/test
> > 346M  3.44T   100M  legacy
> > 
> > 
> > random-init
> > 
> > remote runs: # dd if=/dev/urandom of=testfile count=102400 bs=1024
> > # dd if=/dev/urandom of=testfile count=1 bs=1024 seek=854
> > conv=notrunc # dd if=/dev/urandom of=testfile count=1 bs=1024
> > seek=45368 conv=notrunc # dd if=/dev/urandom of=testfile count=50
> > bs=1024 seek=9647 conv=notrunc
> > 
> > 
> > # rsync -aHAv --stats --delete --sparse root at remote:/test/  .
> > receiving incremental file list ./ testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 1
> > (reg: 1) Number of regular files transferred: 1 Total file size:
> > 104,857,600 bytes Total transferred file size: 104,857,600 bytes
> > Literal data: 104,857,600 bytes Matched data: 0 bytes File list
> > size: 50 File list generation time: 0.001 seconds File list
> > transfer time: 0.000 seconds Total bytes sent: 33 Total bytes
> > received: 104,870,500
> > 
> > sent 33 bytes  received 104,870,500 bytes  41,948,213.20 bytes/sec
> > total size is 104,857,600  speedup is 1.00 # zfs snapshot
> > zraid/test at a # rsync -aHAv --stats --delete --sparse
> > root at remote:/test/  . receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 10,240 bytes Matched data: 104,847,360 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 51,297
> > 
> > sent 71,710 bytes  received 51,297 bytes  82,004.67 bytes/sec total
> > size is 104,857,600  speedup is 852.45 # zfs snapshot zraid/test at b
> > # rsync -aHAv --stats --delete --sparse root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 10,240 bytes Matched data: 104,847,360 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 51,297
> > 
> > sent 71,710 bytes  received 51,297 bytes  82,004.67 bytes/sec total
> > size is 104,857,600  speedup is 852.45 # zfs snapshot zraid/test at c
> > # rsync -aHAv --stats --delete --sparse root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 61,440 bytes Matched data: 104,796,160 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 102,481
> > 
> > sent 71,710 bytes  received 102,481 bytes  69,676.40 bytes/sec
> > total size is 104,857,600  speedup is 601.97
> > 
> > # zfs list NAME                                USED  AVAIL  REFER
> > MOUNTPOINT <snip> zraid/test                          401M  3.44T
> > 100M  legacy
> > 
> > 
> > # rsync -aHAv --stats --delete --inplace root at remote:/test/  .
> > receiving incremental file list ./ testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 1
> > (reg: 1) Number of regular files transferred: 1 Total file size:
> > 104,857,600 bytes Total transferred file size: 104,857,600 bytes
> > Literal data: 104,857,600 bytes Matched data: 0 bytes File list
> > size: 50 File list generation time: 0.001 seconds File list
> > transfer time: 0.000 seconds Total bytes sent: 33 Total bytes
> > received: 104,870,500
> > 
> > sent 33 bytes  received 104,870,500 bytes  69,913,688.67 bytes/sec
> > total size is 104,857,600  speedup is 1.00 # zfs snapshot
> > zraid/test at a # rsync -aHAv --stats --delete --inplace
> > root at test:/test/  . receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 10,240 bytes Matched data: 104,847,360 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 51,297
> > 
> > sent 71,710 bytes  received 51,297 bytes  82,004.67 bytes/sec total
> > size is 104,857,600  speedup is 852.45 # zfs snapshot zraid/test at b
> > # rsync -aHAv --stats --delete --inplace root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 10,240 bytes Matched data: 104,847,360 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 51,297
> > 
> > sent 71,710 bytes  received 51,297 bytes  82,004.67 bytes/sec total
> > size is 104,857,600  speedup is 852.45 # zfs snapshot zraid/test at c
> > # rsync -aHAv --stats --delete --inplace root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 61,440 bytes Matched data: 104,796,160 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 102,481
> > 
> > sent 71,710 bytes  received 102,481 bytes  116,127.33 bytes/sec
> > total size is 104,857,600  speedup is 601.97 # zfs list NAME
> > USED  AVAIL  REFER  MOUNTPOINT <snip> zraid/test
> > 101M  3.44T   100M  legacy
> > 
> > 
> > 
> > random init, zeroed holes
> > 
> > remote runs: # dd if=/dev/urandom of=testfile count=102400 bs=1024
> > # dd if=/dev/zero of=testfile count=20000 bs=1024 seek=10
> > conv=notrunc # dd if=/dev/zero of=testfile count=20000 bs=1024
> > seek=20010 conv=notrunc # dd if=/dev/zero of=testfile count=20000
> > bs=1024 seek=40010 conv=notrunc # dd if=/dev/zero of=testfile
> > count=20000 bs=1024 seek=60010 conv=notrunc # dd if=/dev/zero
> > of=testfile count=20000 bs=1024 seek=80010 conv=notrunc
> > 
> > 
> > # rsync -aHAv --stats --delete --sparse root at remote:/test/  .
> > receiving incremental file list ./ testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 1
> > (reg: 1) Number of regular files transferred: 1 Total file size:
> > 104,857,600 bytes Total transferred file size: 104,857,600 bytes
> > Literal data: 104,857,600 bytes Matched data: 0 bytes File list
> > size: 50 File list generation time: 0.001 seconds File list
> > transfer time: 0.000 seconds Total bytes sent: 33 Total bytes
> > received: 104,870,500
> > 
> > sent 33 bytes  received 104,870,500 bytes  29,963,009.43 bytes/sec
> > total size is 104,857,600  speedup is 1.00 # zfs snapshot
> > zraid/test at a # rsync -aHAv --stats --delete --sparse
> > root at remote:/test/  . receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 20,480,000 bytes Matched data: 84,377,600 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 20,515,557
> > 
> > sent 71,710 bytes  received 20,515,557 bytes  8,234,906.80
> > bytes/sec total size is 104,857,600  speedup is 5.09 # zfs snapshot
> > zraid/test at b # rsync -aHAv --stats --delete --sparse
> > root at remote:/test/  . receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 0 bytes Matched data: 104,857,600 bytes File list size: 50 File
> > list generation time: 0.001 seconds File list transfer time: 0.000
> > seconds Total bytes sent: 71,710 Total bytes received: 41,057
> > 
> > sent 71,710 bytes  received 41,057 bytes  25,059.33 bytes/sec total
> > size is 104,857,600  speedup is 929.86 # zfs snapshot zraid/test at c
> > # rsync -aHAv --stats --delete --sparse root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 0 bytes Matched data: 104,857,600 bytes File list size: 50 File
> > list generation time: 0.001 seconds File list transfer time: 0.000
> > seconds Total bytes sent: 71,710 Total bytes received: 41,057
> > 
> > sent 71,710 bytes  received 41,057 bytes  45,106.80 bytes/sec total
> > size is 104,857,600  speedup is 929.86 # zfs snapshot zraid/test at d
> > # rsync -aHAv --stats --delete --sparse root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 0 bytes Matched data: 104,857,600 bytes File list size: 50 File
> > list generation time: 0.001 seconds File list transfer time: 0.000
> > seconds Total bytes sent: 71,710 Total bytes received: 41,057
> > 
> > sent 71,710 bytes  received 41,057 bytes  75,178.00 bytes/sec total
> > size is 104,857,600  speedup is 929.86 # zfs snapshot zraid/test at e
> > # rsync -aHAv --stats --delete --sparse root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 0 bytes Matched data: 104,857,600 bytes File list size: 50 File
> > list generation time: 0.001 seconds File list transfer time: 0.000
> > seconds Total bytes sent: 71,710 Total bytes received: 41,057
> > 
> > sent 71,710 bytes  received 41,057 bytes  75,178.00 bytes/sec total
> > size is 104,857,600  speedup is 929.86 # zfs list NAME
> > USED  AVAIL  REFER  MOUNTPOINT <snip> zraid/test
> > 309M  3.44T  2.72M  legacy
> > 
> > 
> > # rsync -aHAv --stats --delete --inplace root at remote:/test/  .
> > receiving incremental file list ./ testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 1
> > (reg: 1) Number of regular files transferred: 1 Total file size:
> > 104,857,600 bytes Total transferred file size: 104,857,600 bytes
> > Literal data: 104,857,600 bytes Matched data: 0 bytes File list
> > size: 50 File list generation time: 0.001 seconds File list
> > transfer time: 0.000 seconds Total bytes sent: 33 Total bytes
> > received: 104,870,500
> > 
> > sent 33 bytes  received 104,870,500 bytes  29,963,009.43 bytes/sec
> > total size is 104,857,600  speedup is 1.00 # zfs snapshot
> > zraid/test at a # rsync -aHAv --stats --delete --inplace
> > root at remote:/test/  . receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 20,480,000 bytes Matched data: 84,377,600 bytes File list size: 50
> > File list generation time: 0.001 seconds File list transfer time:
> > 0.000 seconds Total bytes sent: 71,710 Total bytes received:
> > 20,515,557
> > 
> > sent 71,710 bytes  received 20,515,557 bytes  13,724,844.67
> > bytes/sec total size is 104,857,600  speedup is 5.09 # zfs snapshot
> > zraid/test at b # rsync -aHAv --stats --delete --inplace
> > root at remote:/test/  . receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 0 bytes Matched data: 104,857,600 bytes File list size: 50 File
> > list generation time: 0.001 seconds File list transfer time: 0.000
> > seconds Total bytes sent: 71,710 Total bytes received: 41,057
> > 
> > sent 71,710 bytes  received 41,057 bytes  45,106.80 bytes/sec total
> > size is 104,857,600  speedup is 929.86 # zfs snapshot zraid/test at c
> > # rsync -aHAv --stats --delete --inplace root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 0 bytes Matched data: 104,857,600 bytes File list size: 50 File
> > list generation time: 0.001 seconds File list transfer time: 0.000
> > seconds Total bytes sent: 71,710 Total bytes received: 41,057
> > 
> > sent 71,710 bytes  received 41,057 bytes  45,106.80 bytes/sec total
> > size is 104,857,600  speedup is 929.86 # zfs snapshot zraid/test at d
> > # rsync -aHAv --stats --delete --inplace root at remote:/test/  .
> > receiving incremental file list testfile
> > 
> > Number of files: 2 (reg: 1, dir: 1) Number of created files: 0
> > Number of regular files transferred: 1 Total file size: 104,857,600
> > bytes Total transferred file size: 104,857,600 bytes Literal data:
> > 0 bytes Matched data: 104,857,600 bytes File list size: 50 File
> > list generation time: 0.001 seconds File list transfer time: 0.000
> > seconds Total bytes sent: 71,710 Total bytes received: 41,057
> > 
> > sent 71,710 bytes  received 41,057 bytes  45,106.80 bytes/sec total
> > size is 104,857,600  speedup is 929.86 # zfs snapshot zraid/test at e
> > # rsync -aHAv --stats --delete --inplace root at remote:/test/  .
> > receiving incremental file list testfile z Number of files: 2 (reg:
> > 1, dir: 1) Number of created files: 0 Number of regular files
> > transferred: 1 Total file size: 104,857,600 bytes Total transferred
> > file size: 104,857,600 bytes Literal data: 0 bytes Matched data:
> > 104,857,600 bytes File list size: 50 File list generation time:
> > 0.001 seconds File list transfer time: 0.000 seconds Total bytes
> > sent: 71,710 Total bytes received: 41,057
> > 
> > sent 71,710 bytes  received 41,057 bytes  45,106.80 bytes/sec total
> > size is 104,857,600  speedup is 929.86 zalohovadlo recover # zfs
> > list NAME                                USED  AVAIL  REFER
> > MOUNTPOINT <snip> zraid/test                          198M  3.44T
> > 100M  legacy
> 
> - --
> ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~
> 	Kevin Korb			Phone:    (407) 252-6853
> 	Systems Administrator		Internet:
> 	FutureQuest, Inc.		Kevin at FutureQuest.net  (work)
> 	Orlando, Florida		kmk at sanitarium.net (personal)
> 	Web page:			http://www.sanitarium.net/
> 	PGP public key available on web site.
> ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v2.0.22 (GNU/Linux)
> Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
> 
> iEYEARECAAYFAlMZCkwACgkQVKC1jlbQAQf95gCfTXjwsQ4DxFJ/1JS4Ndp/DQIe
> 8RAAnRxqfeDqUM/39T/TLrw8zsWQj3u6
> =UeC+
> -----END PGP SIGNATURE-----


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