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
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