Hi,
I BFUd successfully snv_128 over snv_125:
---
# cat /etc/release
Solaris Express Community Edition snv_125 X86
Copyright 2009 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 05 October 2009
# uname -a
SunOS cheeky 5.11 snv_128 i86pc i386 i86pc
...
being impatient to test zfs dedup. I was able to set dedup=on (I presume with
the default sha256 key) on a few filesystems and did the following trivial test
(this is an edited script session):
Script started on Wed Oct 28 09:38:38 2009
# zfs get dedup rpool/export/home
NAME PROPERTY VALUE SOURCE
rpool/export/home dedup on local
# for i in 1 2 3 4 5 ; do mkdir /export/home/d${i} && df -k
/export/home/d${i} && zfs get used rpool/export/home && cp
/testfile /export/home/d${i}; done
Filesystem kbytes used avail capacity Mounted on
rpool/export/home 17418240 27 6063425 1% /export/home
NAME PROPERTY VALUE SOURCE
rpool/export/home used 27K -
Filesystem kbytes used avail capacity Mounted on
rpool/export/home 17515512 103523 6057381 2% /export/home
NAME PROPERTY VALUE SOURCE
rpool/export/home used 102M -
Filesystem kbytes used avail capacity Mounted on
rpool/export/home 17682840 271077 6056843 5% /export/home
NAME PROPERTY VALUE SOURCE
rpool/export/home used 268M -
Filesystem kbytes used avail capacity Mounted on
rpool/export/home 17852184 442345 6054919 7% /export/home
NAME PROPERTY VALUE SOURCE
rpool/export/home used 432M -
Filesystem kbytes used avail capacity Mounted on
rpool/export/home 17996580 587996 6053933 9% /export/home
NAME PROPERTY VALUE SOURCE
rpool/export/home used 574M -
# zfs get all rpool/export/home
NAME PROPERTY VALUE SOURCE
rpool/export/home type filesystem -
rpool/export/home creation Mon Sep 21 9:27 2009 -
rpool/export/home used 731M -
rpool/export/home available 5.77G -
rpool/export/home referenced 731M -
rpool/export/home compressratio 1.00x -
rpool/export/home mounted yes -
rpool/export/home quota none default
rpool/export/home reservation none default
rpool/export/home recordsize 128K default
rpool/export/home mountpoint /export/home inherited from
rpool/export
rpool/export/home sharenfs off default
rpool/export/home checksum on default
rpool/export/home compression off default
rpool/export/home atime on default
rpool/export/home devices on default
rpool/export/home exec on default
rpool/export/home setuid on default
rpool/export/home readonly off default
rpool/export/home zoned off default
rpool/export/home snapdir hidden default
rpool/export/home aclmode groupmask default
rpool/export/home aclinherit restricted default
rpool/export/home canmount on default
rpool/export/home shareiscsi off default
rpool/export/home xattr on default
rpool/export/home copies 1 default
rpool/export/home version 4 -
rpool/export/home utf8only off -
rpool/export/home normalization none -
rpool/export/home casesensitivity sensitive -
rpool/export/home vscan off default
rpool/export/home nbmand off default
rpool/export/home sharesmb off default
rpool/export/home refquota none default
rpool/export/home refreservation none default
rpool/export/home primarycache all default
rpool/export/home secondarycache all default
rpool/export/home usedbysnapshots 0 -
rpool/export/home usedbydataset 731M -
rpool/export/home usedbychildren 0 -
rpool/export/home usedbyrefreservation 0 -
rpool/export/home logbias latency default
rpool/export/home dedup on local
rpool/export/home mlslabel none default
# ls -l /export/home/d?
/export/home/d1:
total 299237
-rw-r----- 1 root root 152993234 Oct 28 09:41 testfile
/export/home/d2:
total 299237
-rw-r----- 1 root root 152993234 Oct 28 09:41 testfile
/export/home/d3:
total 299237
-rw-r----- 1 root root 152993234 Oct 28 09:42 testfile
/export/home/d4:
total 299237
-rw-r----- 1 root root 152993234 Oct 28 09:42 testfile
/export/home/d5:
total 299237
-rw-r----- 1 root root 152993234 Oct 28 09:42 testfile
# sync
# sync
# zfs get dedup,used rpool/export/home
NAME PROPERTY VALUE SOURCE
rpool/export/home dedup on local
rpool/export/home used 731M -
#
script done on Wed Oct 28 09:44:16 2009
By the look of it, nothing happens. Is there anything else to do to enable the
dedup, or I am completely misunderstanding the way it should be working?
Chavdar Ivanov
--
This message posted from opensolaris.org
Chavdar Ivanov schrieb:> Hi, > > I BFUd successfully snv_128 over snv_125: > > --- > # cat /etc/release > Solaris Express Community Edition snv_125 X86 > Copyright 2009 Sun Microsystems, Inc. All Rights Reserved. > Use is subject to license terms. > Assembled 05 October 2009 > # uname -a > SunOS cheeky 5.11 snv_128 i86pc i386 i86pc > ... > > being impatient to test zfs dedup. I was able to set dedup=on (I presume with the default sha256 key) on a few filesystems and did the following trivial test (this is an edited script session): > > Script started on Wed Oct 28 09:38:38 2009 > # zfs get dedup rpool/export/home > NAME PROPERTY VALUE SOURCE > rpool/export/home dedup on local > # for i in 1 2 3 4 5 ; do mkdir /export/home/d${i} && df -k /export/home/d${i} && zfs get used rpool/export/home && cp /testfile /export/home/d${i}; done > Filesystem kbytes used avail capacity Mounted on > rpool/export/home 17418240 27 6063425 1% /export/home > NAME PROPERTY VALUE SOURCE > rpool/export/home used 27K - > Filesystem kbytes used avail capacity Mounted on > rpool/export/home 17515512 103523 6057381 2% /export/home > NAME PROPERTY VALUE SOURCE > rpool/export/home used 102M - > Filesystem kbytes used avail capacity Mounted on > rpool/export/home 17682840 271077 6056843 5% /export/home > NAME PROPERTY VALUE SOURCE > rpool/export/home used 268M - > Filesystem kbytes used avail capacity Mounted on > rpool/export/home 17852184 442345 6054919 7% /export/home > NAME PROPERTY VALUE SOURCE > rpool/export/home used 432M - > Filesystem kbytes used avail capacity Mounted on > rpool/export/home 17996580 587996 6053933 9% /export/home > NAME PROPERTY VALUE SOURCE > rpool/export/home used 574M - > # zfs get all rpool/export/home > NAME PROPERTY VALUE SOURCE > rpool/export/home type filesystem - > rpool/export/home creation Mon Sep 21 9:27 2009 - > rpool/export/home used 731M - > rpool/export/home available 5.77G - > rpool/export/home referenced 731M - > rpool/export/home compressratio 1.00x - > rpool/export/home mounted yes - > rpool/export/home quota none default > rpool/export/home reservation none default > rpool/export/home recordsize 128K default > rpool/export/home mountpoint /export/home inherited from rpool/export > rpool/export/home sharenfs off default > rpool/export/home checksum on default > rpool/export/home compression off default > rpool/export/home atime on default > rpool/export/home devices on default > rpool/export/home exec on default > rpool/export/home setuid on default > rpool/export/home readonly off default > rpool/export/home zoned off default > rpool/export/home snapdir hidden default > rpool/export/home aclmode groupmask default > rpool/export/home aclinherit restricted default > rpool/export/home canmount on default > rpool/export/home shareiscsi off default > rpool/export/home xattr on default > rpool/export/home copies 1 default > rpool/export/home version 4 - > rpool/export/home utf8only off - > rpool/export/home normalization none - > rpool/export/home casesensitivity sensitive - > rpool/export/home vscan off default > rpool/export/home nbmand off default > rpool/export/home sharesmb off default > rpool/export/home refquota none default > rpool/export/home refreservation none default > rpool/export/home primarycache all default > rpool/export/home secondarycache all default > rpool/export/home usedbysnapshots 0 - > rpool/export/home usedbydataset 731M - > rpool/export/home usedbychildren 0 - > rpool/export/home usedbyrefreservation 0 - > rpool/export/home logbias latency default > rpool/export/home dedup on local > rpool/export/home mlslabel none default > # ls -l /export/home/d? > /export/home/d1: > total 299237 > -rw-r----- 1 root root 152993234 Oct 28 09:41 testfile > > /export/home/d2: > total 299237 > -rw-r----- 1 root root 152993234 Oct 28 09:41 testfile > > /export/home/d3: > total 299237 > -rw-r----- 1 root root 152993234 Oct 28 09:42 testfile > > /export/home/d4: > total 299237 > -rw-r----- 1 root root 152993234 Oct 28 09:42 testfile > > /export/home/d5: > total 299237 > -rw-r----- 1 root root 152993234 Oct 28 09:42 testfile > # sync > # sync > # zfs get dedup,used rpool/export/home > NAME PROPERTY VALUE SOURCE > rpool/export/home dedup on local > rpool/export/home used 731M - > # > script done on Wed Oct 28 09:44:16 2009 > > > By the look of it, nothing happens. Is there anything else to do to enable the dedup, or I am completely misunderstanding the way it should be working? > > Chavdar IvanovHi Chavdar, as far as I understood it, the dedup works during writing, and won''t deduplicate already written data (this is planned for a later release). - Thomas
Thomas Maier-Komor wrote:>> Script started on Wed Oct 28 09:38:38 2009 >> # zfs get dedup rpool/export/home >> NAME PROPERTY VALUE SOURCE >> rpool/export/home dedup on local >> # for i in 1 2 3 4 5 ; do mkdir /export/home/d${i} && df -k >> /export/home/d${i} && zfs get used rpool/export/home && cp /testfile >> /export/home/d${i}; done> > as far as I understood it, the dedup works during writing, and won''t > deduplicate already written data (this is planned for a later release).isn''t he doing just that (writing, that is)? Michael -- Michael Schuster http://blogs.sun.com/recursion Recursion, n.: see ''Recursion''
Michael Schuster schrieb:> Thomas Maier-Komor wrote: > >>> Script started on Wed Oct 28 09:38:38 2009 >>> # zfs get dedup rpool/export/home >>> NAME PROPERTY VALUE SOURCE >>> rpool/export/home dedup on local >>> # for i in 1 2 3 4 5 ; do mkdir /export/home/d${i} && df -k >>> /export/home/d${i} && zfs get used rpool/export/home && cp /testfile >>> /export/home/d${i}; done > > >> >> as far as I understood it, the dedup works during writing, and won''t >> deduplicate already written data (this is planned for a later release). > > isn''t he doing just that (writing, that is)? > > MichaelOh - I overlooked this very one line... Maybe zfs''s used property returns the accumulated usage, and only zpool shows the real usage? - Thomas
2009/11/27 Thomas Maier-Komor <thomas at maier-komor.de>:> Chavdar Ivanov schrieb: >> Hi, >> >> I BFUd successfully snv_128 over snv_125: >> >> --- >> # cat /etc/release >> ? ? ? ? ? ? ? ? ? Solaris Express Community Edition snv_125 X86 >> ? ? ? ? ? ?Copyright 2009 Sun Microsystems, Inc. ?All Rights Reserved. >> ? ? ? ? ? ? ? ? ? ? ? ? Use is subject to license terms. >> ? ? ? ? ? ? ? ? ? ? ? ? ? ? Assembled 05 October 2009 >> # uname -a >> SunOS cheeky 5.11 snv_128 i86pc i386 i86pc >> ... >> >> being impatient to test zfs dedup. I was able to set dedup=on (I presume with the default sha256 key) on a few filesystems and did the following trivial test (this is an edited script session): >> >> Script started on Wed Oct 28 09:38:38 2009 >> # zfs get dedup rpool/export/home >> NAME ? ? ? ? ? ? ? PROPERTY ?VALUE ? ? ? ? ? ? SOURCE >> rpool/export/home ?dedup ? ? on ? ? ? ? ? ? ? ?local >> # for i in 1 2 3 4 5 ; do mkdir /export/home/d${i} && df -k /export/home/d${i} && zfs get used rpool/export/home && cp /testfile /export/home/d${i}; done >> Filesystem ? ? ? ? ? ?kbytes ? ?used ? avail capacity ?Mounted on >> rpool/export/home ? ?17418240 ? ? ?27 6063425 ? ? 1% ? ?/export/home >> NAME ? ? ? ? ? ? ? PROPERTY ?VALUE ?SOURCE >> rpool/export/home ?used ? ? ?27K ? ?- >> Filesystem ? ? ? ? ? ?kbytes ? ?used ? avail capacity ?Mounted on >> rpool/export/home ? ?17515512 ?103523 6057381 ? ? 2% ? ?/export/home >> NAME ? ? ? ? ? ? ? PROPERTY ?VALUE ?SOURCE >> rpool/export/home ?used ? ? ?102M ? - >> Filesystem ? ? ? ? ? ?kbytes ? ?used ? avail capacity ?Mounted on >> rpool/export/home ? ?17682840 ?271077 6056843 ? ? 5% ? ?/export/home >> NAME ? ? ? ? ? ? ? PROPERTY ?VALUE ?SOURCE >> rpool/export/home ?used ? ? ?268M ? - >> Filesystem ? ? ? ? ? ?kbytes ? ?used ? avail capacity ?Mounted on >> rpool/export/home ? ?17852184 ?442345 6054919 ? ? 7% ? ?/export/home >> NAME ? ? ? ? ? ? ? PROPERTY ?VALUE ?SOURCE >> rpool/export/home ?used ? ? ?432M ? - >> Filesystem ? ? ? ? ? ?kbytes ? ?used ? avail capacity ?Mounted on >> rpool/export/home ? ?17996580 ?587996 6053933 ? ? 9% ? ?/export/home >> NAME ? ? ? ? ? ? ? PROPERTY ?VALUE ?SOURCE >> rpool/export/home ?used ? ? ?574M ? - >> # zfs get all rpool/export/home >> NAME ? ? ? ? ? ? ? PROPERTY ? ? ? ? ? ? ?VALUE ? ? ? ? ? ? ? ? ?SOURCE >> rpool/export/home ?type ? ? ? ? ? ? ? ? ?filesystem ? ? ? ? ? ? - >> rpool/export/home ?creation ? ? ? ? ? ? ?Mon Sep 21 ?9:27 2009 ?- >> rpool/export/home ?used ? ? ? ? ? ? ? ? ?731M ? ? ? ? ? ? ? ? ? - >> rpool/export/home ?available ? ? ? ? ? ? 5.77G ? ? ? ? ? ? ? ? ?- >> rpool/export/home ?referenced ? ? ? ? ? ?731M ? ? ? ? ? ? ? ? ? - >> rpool/export/home ?compressratio ? ? ? ? 1.00x ? ? ? ? ? ? ? ? ?- >> rpool/export/home ?mounted ? ? ? ? ? ? ? yes ? ? ? ? ? ? ? ? ? ?- >> rpool/export/home ?quota ? ? ? ? ? ? ? ? none ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?reservation ? ? ? ? ? none ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?recordsize ? ? ? ? ? ?128K ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?mountpoint ? ? ? ? ? ?/export/home ? ? ? ? ? inherited from rpool/export >> rpool/export/home ?sharenfs ? ? ? ? ? ? ?off ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?checksum ? ? ? ? ? ? ?on ? ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?compression ? ? ? ? ? off ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?atime ? ? ? ? ? ? ? ? on ? ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?devices ? ? ? ? ? ? ? on ? ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?exec ? ? ? ? ? ? ? ? ?on ? ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?setuid ? ? ? ? ? ? ? ?on ? ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?readonly ? ? ? ? ? ? ?off ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?zoned ? ? ? ? ? ? ? ? off ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?snapdir ? ? ? ? ? ? ? hidden ? ? ? ? ? ? ? ? default >> rpool/export/home ?aclmode ? ? ? ? ? ? ? groupmask ? ? ? ? ? ? ?default >> rpool/export/home ?aclinherit ? ? ? ? ? ?restricted ? ? ? ? ? ? default >> rpool/export/home ?canmount ? ? ? ? ? ? ?on ? ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?shareiscsi ? ? ? ? ? ?off ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?xattr ? ? ? ? ? ? ? ? on ? ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?copies ? ? ? ? ? ? ? ?1 ? ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?version ? ? ? ? ? ? ? 4 ? ? ? ? ? ? ? ? ? ? ?- >> rpool/export/home ?utf8only ? ? ? ? ? ? ?off ? ? ? ? ? ? ? ? ? ?- >> rpool/export/home ?normalization ? ? ? ? none ? ? ? ? ? ? ? ? ? - >> rpool/export/home ?casesensitivity ? ? ? sensitive ? ? ? ? ? ? ?- >> rpool/export/home ?vscan ? ? ? ? ? ? ? ? off ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?nbmand ? ? ? ? ? ? ? ?off ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?sharesmb ? ? ? ? ? ? ?off ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?refquota ? ? ? ? ? ? ?none ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?refreservation ? ? ? ?none ? ? ? ? ? ? ? ? ? default >> rpool/export/home ?primarycache ? ? ? ? ?all ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?secondarycache ? ? ? ?all ? ? ? ? ? ? ? ? ? ?default >> rpool/export/home ?usedbysnapshots ? ? ? 0 ? ? ? ? ? ? ? ? ? ? ?- >> rpool/export/home ?usedbydataset ? ? ? ? 731M ? ? ? ? ? ? ? ? ? - >> rpool/export/home ?usedbychildren ? ? ? ?0 ? ? ? ? ? ? ? ? ? ? ?- >> rpool/export/home ?usedbyrefreservation ?0 ? ? ? ? ? ? ? ? ? ? ?- >> rpool/export/home ?logbias ? ? ? ? ? ? ? latency ? ? ? ? ? ? ? ?default >> rpool/export/home ?dedup ? ? ? ? ? ? ? ? on ? ? ? ? ? ? ? ? ? ? local >> rpool/export/home ?mlslabel ? ? ? ? ? ? ?none ? ? ? ? ? ? ? ? ? default >> # ls -l /export/home/d? >> /export/home/d1: >> total 299237 >> -rw-r----- ? 1 root ? ? root ? ? 152993234 Oct 28 09:41 testfile >> >> /export/home/d2: >> total 299237 >> -rw-r----- ? 1 root ? ? root ? ? 152993234 Oct 28 09:41 testfile >> >> /export/home/d3: >> total 299237 >> -rw-r----- ? 1 root ? ? root ? ? 152993234 Oct 28 09:42 testfile >> >> /export/home/d4: >> total 299237 >> -rw-r----- ? 1 root ? ? root ? ? 152993234 Oct 28 09:42 testfile >> >> /export/home/d5: >> total 299237 >> -rw-r----- ? 1 root ? ? root ? ? 152993234 Oct 28 09:42 testfile >> # sync >> # sync >> # zfs get dedup,used rpool/export/home >> NAME ? ? ? ? ? ? ? PROPERTY ?VALUE ? ? ? ? ? ? SOURCE >> rpool/export/home ?dedup ? ? on ? ? ? ? ? ? ? ?local >> rpool/export/home ?used ? ? ?731M ? ? ? ? ? ? ?- >> # >> script done on Wed Oct 28 09:44:16 2009 >> >> >> By the look of it, nothing happens. Is there anything else to do to enable the dedup, or I am completely misunderstanding the way it should be working? >> >> Chavdar Ivanov > > Hi Chavdar, > > as far as I understood it, the dedup works during writing, and won''t > deduplicate already written data (this is planned for a later release).I understand the same; the last command of the for line in the example above is actual copying of /testfile to five separate directories within a ZFS which has dedup=on; as the deduplication is synchronous, I thought I should be able to see on the fly the disk usage as expressed by ''df -k'' and the ZFS ''used'' attribute stay the same.> > - Thomas >Chavdar -- ---- Jonathan Swift - "May you live every day of your life." - http://www.brainyquote.com/quotes/authors/j/jonathan_swift.html
Last remark was spot on:
Script started on Wed Oct 28 10:23:11 2009
# zpool get all rpool
NAME PROPERTY VALUE SOURCE
rpool size 16.9G -
rpool capacity 64% -
rpool altroot - default
rpool health ONLINE -
rpool guid 7871975526384708408 default
rpool version 22 default
rpool bootfs rpool/ROOT/snv_125 local
rpool delegation on default
rpool autoreplace off default
rpool cachefile - default
rpool failmode continue local
rpool listsnapshots off default
rpool autoexpand off default
rpool dedupratio 4.81x -
rpool free 6.04G -
rpool allocated 10.8G -
# for i in 1 2 3 4 5 ; do cp /testfile /export/home/d${i}/new ; done
# zpool get all rpool
NAME PROPERTY VALUE SOURCE
rpool size 16.9G -
rpool capacity 64% -
rpool altroot - default
rpool health ONLINE -
rpool guid 7871975526384708408 default
rpool version 22 default
rpool bootfs rpool/ROOT/snv_125 local
rpool delegation on default
rpool autoreplace off default
rpool cachefile - default
rpool failmode continue local
rpool listsnapshots off default
rpool autoexpand off default
rpool dedupratio 8.48x -
rpool free 6.04G -
rpool allocated 10.8G -
Notice the capacity and the dedupratio.
Cheers!
Chavdar Ivanov
--
This message posted from opensolaris.org
You have fallen into the same trap I fell into. df(1M) is not dedup aware; dedup occurs at the pool level, not the filesystem level. If you look at your df output, you can see your disk seems to be growing in size which is non-intuitive. Once you start using ZFS and in particular dedup but also other data services such as snapshots, you need to start using the zpool and zfs reporting commands and abandon df(1M). /d 2009/11/27 Chavdar Ivanov <ci4ic4 at gmail.com>> 2009/11/27 Thomas Maier-Komor <thomas at maier-komor.de>: > > Chavdar Ivanov schrieb: > >> Hi, > >> > >> I BFUd successfully snv_128 over snv_125: > >> > >> --- > >> # cat /etc/release > >> Solaris Express Community Edition snv_125 X86 > >> Copyright 2009 Sun Microsystems, Inc. All Rights Reserved. > >> Use is subject to license terms. > >> Assembled 05 October 2009 > >> # uname -a > >> SunOS cheeky 5.11 snv_128 i86pc i386 i86pc > >> ... > >> > >> being impatient to test zfs dedup. I was able to set dedup=on (I presume > with the default sha256 key) on a few filesystems and did the following > trivial test (this is an edited script session): > >> > >> Script started on Wed Oct 28 09:38:38 2009 > >> # zfs get dedup rpool/export/home > >> NAME PROPERTY VALUE SOURCE > >> rpool/export/home dedup on local > >> # for i in 1 2 3 4 5 ; do mkdir /export/home/d${i} && df -k > /export/home/d${i} && zfs get used rpool/export/home && cp /testfile > /export/home/d${i}; done > >> Filesystem kbytes used avail capacity Mounted on > >> rpool/export/home 17418240 27 6063425 1% /export/home > >> NAME PROPERTY VALUE SOURCE > >> rpool/export/home used 27K - > >> Filesystem kbytes used avail capacity Mounted on > >> rpool/export/home 17515512 103523 6057381 2% /export/home > >> NAME PROPERTY VALUE SOURCE > >> rpool/export/home used 102M - > >> Filesystem kbytes used avail capacity Mounted on > >> rpool/export/home 17682840 271077 6056843 5% /export/home > >> NAME PROPERTY VALUE SOURCE > >> rpool/export/home used 268M - > >> Filesystem kbytes used avail capacity Mounted on > >> rpool/export/home 17852184 442345 6054919 7% /export/home > >> NAME PROPERTY VALUE SOURCE > >> rpool/export/home used 432M - > >> Filesystem kbytes used avail capacity Mounted on > >> rpool/export/home 17996580 587996 6053933 9% /export/home > >> NAME PROPERTY VALUE SOURCE > >> rpool/export/home used 574M - > >> # zfs get all rpool/export/home > >> NAME PROPERTY VALUE SOURCE > >> rpool/export/home type filesystem - > >> rpool/export/home creation Mon Sep 21 9:27 2009 - > >> rpool/export/home used 731M - > >> rpool/export/home available 5.77G - > >> rpool/export/home referenced 731M - > >> rpool/export/home compressratio 1.00x - > >> rpool/export/home mounted yes - > >> rpool/export/home quota none default > >> rpool/export/home reservation none default > >> rpool/export/home recordsize 128K default > >> rpool/export/home mountpoint /export/home > inherited from rpool/export > >> rpool/export/home sharenfs off default > >> rpool/export/home checksum on default > >> rpool/export/home compression off default > >> rpool/export/home atime on default > >> rpool/export/home devices on default > >> rpool/export/home exec on default > >> rpool/export/home setuid on default > >> rpool/export/home readonly off default > >> rpool/export/home zoned off default > >> rpool/export/home snapdir hidden default > >> rpool/export/home aclmode groupmask default > >> rpool/export/home aclinherit restricted default > >> rpool/export/home canmount on default > >> rpool/export/home shareiscsi off default > >> rpool/export/home xattr on default > >> rpool/export/home copies 1 default > >> rpool/export/home version 4 - > >> rpool/export/home utf8only off - > >> rpool/export/home normalization none - > >> rpool/export/home casesensitivity sensitive - > >> rpool/export/home vscan off default > >> rpool/export/home nbmand off default > >> rpool/export/home sharesmb off default > >> rpool/export/home refquota none default > >> rpool/export/home refreservation none default > >> rpool/export/home primarycache all default > >> rpool/export/home secondarycache all default > >> rpool/export/home usedbysnapshots 0 - > >> rpool/export/home usedbydataset 731M - > >> rpool/export/home usedbychildren 0 - > >> rpool/export/home usedbyrefreservation 0 - > >> rpool/export/home logbias latency default > >> rpool/export/home dedup on local > >> rpool/export/home mlslabel none default > >> # ls -l /export/home/d? > >> /export/home/d1: > >> total 299237 > >> -rw-r----- 1 root root 152993234 Oct 28 09:41 testfile > >> > >> /export/home/d2: > >> total 299237 > >> -rw-r----- 1 root root 152993234 Oct 28 09:41 testfile > >> > >> /export/home/d3: > >> total 299237 > >> -rw-r----- 1 root root 152993234 Oct 28 09:42 testfile > >> > >> /export/home/d4: > >> total 299237 > >> -rw-r----- 1 root root 152993234 Oct 28 09:42 testfile > >> > >> /export/home/d5: > >> total 299237 > >> -rw-r----- 1 root root 152993234 Oct 28 09:42 testfile > >> # sync > >> # sync > >> # zfs get dedup,used rpool/export/home > >> NAME PROPERTY VALUE SOURCE > >> rpool/export/home dedup on local > >> rpool/export/home used 731M - > >> # > >> script done on Wed Oct 28 09:44:16 2009 > >> > >> > >> By the look of it, nothing happens. Is there anything else to do to > enable the dedup, or I am completely misunderstanding the way it should be > working? > >> > >> Chavdar Ivanov > > > > Hi Chavdar, > > > > as far as I understood it, the dedup works during writing, and won''t > > deduplicate already written data (this is planned for a later release). > > I understand the same; the last command of the for line in the example > above is actual copying of /testfile to five separate directories > within a ZFS which has dedup=on; as the deduplication is synchronous, > I thought I should be able to see on the fly the disk usage as > expressed by ''df -k'' and the ZFS ''used'' attribute stay the same. > > > > > - Thomas > > > Chavdar > > > > -- > ---- > Jonathan Swift - "May you live every day of your life." - > http://www.brainyquote.com/quotes/authors/j/jonathan_swift.html > _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >-- Dominic Kay +44 780 124 6099 -------------- next part -------------- An HTML attachment was scrubbed... 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Hy all, On Fri, Nov 27, 2009 at 11:08 AM, Chavdar Ivanov <ci4ic4 at gmail.com> wrote:> Hi, > > I BFUd successfully snv_128 over snv_125: > > --- > # cat /etc/release > ? ? ? ? ? ? ? ? ?Solaris Express Community Edition snv_125 X86 > ? ? ? ? ? Copyright 2009 Sun Microsystems, Inc. ?All Rights Reserved. > ? ? ? ? ? ? ? ? ? ? ? ?Use is subject to license terms. > ? ? ? ? ? ? ? ? ? ? ? ? ? ?Assembled 05 October 2009 > # uname -a > SunOS cheeky 5.11 snv_128 i86pc i386 i86pcI''m asking when "dedupe feature" will be added on Solaris 10.x. I recently update my Solaris 10.x box on production with LiveUpgrade (the previous was Update 4): # cat /etc/release Solaris 10 10/09 s10s_u8wos_08a SPARC Copyright 2009 Sun Microsystems, Inc. All Rights Reserved. Use is subject to license terms. Assembled 16 September 2009 # uname -a SunOS rmims03 5.10 Generic_141444-09 sun4v sparc SUNW,SPARC-Enterprise-T5120 Thanks Cesare -- Ogden Nash - "The trouble with a kitten is that when it grows up, it''s always a cat." - http://www.brainyquote.com/quotes/authors/o/ogden_nash.html