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Date:      Mon, 18 May 2009 10:00:53 +0100
From:      Paul Wootton <paul@fletchermoorland.co.uk>
To:        freebsd-current@freebsd.org
Subject:   discrepancies in used space after cpio
Message-ID:  <4A1123C5.3070507@fletchermoorland.co.uk>

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Hi,

I am currently in the process of moving all my data around, going from a 
single zfs drive (ex-mirror) to a zfs raidz.
I have used cpio to copy the data to the new pool, but a du shows a big 
difference in the results.

Does anyone have any ideas, or does a "du -h ." not do what I think it 
should?

Cheers
Paul



demophon# uname -a
FreeBSD demophon 8.0-CURRENT FreeBSD 8.0-CURRENT #14: Fri May 15 
16:48:17 BST 2009     paul@demophon:/usr/obj/usr/src/sys/DEMOPHON  amd64



demophon# zpool status
  pool: DemoPool
 state: ONLINE
 scrub: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        DemoPool    ONLINE       0     0     0
          raidz1    ONLINE       0     0     0
            ad20p3  ONLINE       0     0     0
            ad18p3  ONLINE       0     0     0
            ad16p4  ONLINE       0     0     0

errors: No known data errors

  pool: zfsroot
 state: ONLINE
 scrub: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        zfsroot     ONLINE       0     0     0
          ad16p3    ONLINE       0     0     0

errors: No known data errors



demophon# mount
zfsroot/root on / (zfs, local)
devfs on /dev (devfs, local) 
DemoPool on /DemoPool (zfs, local)
DemoPool/root on /DemoPool/root (zfs, local)
DemoPool/tmp on /DemoPool/tmp (zfs, local) 
DemoPool/usr on /DemoPool/usr (zfs, local) 
DemoPool/var on /DemoPool/var (zfs, local) 
zfsroot/tmp on /tmp (zfs, local)           
zfsroot/usr on /usr (zfs, local)           
zfsroot/var on /var (zfs, local)     



demophon# pwd
/DemoPool/var/tmp/kdecache-paul/kpc
demophon# ls -lah
total 1282522
drwx------   2 paul  paul    25B May 15 19:35 .
drwx------  11 paul  paul    16B May 15 19:36 ..
-rw-r--r--   1 paul  paul   5.0M May  6 16:47 kapman_cache.data
-rw-r--r--   1 paul  paul   1.3M May  6 16:47 kapman_cache.index
-rw-r--r--   1 paul  paul    15M May 15 17:52 kde-icon-cache.data
-rw-r--r--   1 paul  paul   4.1M May 15 19:35 kde-icon-cache.index
-rw-r--r--   1 paul  paul     0B May 15 19:35 kde-icon-cache.updated
-rw-r--r--   1 paul  paul   5.0M May  6 16:48 kdiamond-cache.data
-rw-r--r--   1 paul  paul   1.3M May  6 16:48 kdiamond-cache.index
-rw-r--r--   1 paul  paul   120M Mar 20 08:54 plasma_theme_Atelier.data
-rw-r--r--   1 paul  paul    32M Mar 20 08:54 plasma_theme_Atelier.index
-rw-r--r--   1 paul  paul   120M May  4 18:18 plasma_theme_Aya.data
-rw-r--r--   1 paul  paul    32M May  4 18:18 plasma_theme_Aya.index
-rw-r--r--   1 paul  paul   120M May 15 18:20 plasma_theme_Elegance.data
-rw-r--r--   1 paul  paul    32M May 15 19:01 plasma_theme_Elegance.index
-rw-r--r--   1 paul  paul   120M Mar 22 19:17 plasma_theme_Glassified.data
-rw-r--r--   1 paul  paul    32M Mar 22 20:05 plasma_theme_Glassified.index
-rw-r--r--   1 paul  paul   120M Mar 20 08:53 plasma_theme_Led 
revolution.data
-rw-r--r--   1 paul  paul    32M Mar 20 08:54 plasma_theme_Led 
revolution.index
-rw-r--r--   1 paul  paul   120M Mar 20 08:54 plasma_theme_Oxyook.data
-rw-r--r--   1 paul  paul    32M Mar 20 08:55 plasma_theme_Oxyook.index
-rw-r--r--   1 paul  paul   120M May  4 18:19 plasma_theme_default.data
-rw-r--r--   1 paul  paul    32M May  4 18:19 plasma_theme_default.index
-rw-r--r--   1 paul  paul   120M Mar 20 08:55 plasma_theme_spoons.data
-rw-r--r--   1 paul  paul    32M Mar 20 08:55 plasma_theme_spoons.index
demophon# du -h .
1.2G    .
demophon#



demophon# pwd
/var/tmp/kdecache-paul/kpc
demophon# ls -lah
total 7833
drwx------   2 paul  paul    25B May 18 09:37 .
drwx------  11 paul  paul    16B May 18 09:12 ..
-rw-r--r--   1 paul  paul   5.0M May  6 16:47 kapman_cache.data
-rw-r--r--   1 paul  paul   1.3M May  6 16:47 kapman_cache.index
-rw-r--r--   1 paul  paul    15M May 18 09:37 kde-icon-cache.data
-rw-r--r--   1 paul  paul   4.1M May 18 09:37 kde-icon-cache.index
-rw-r--r--   1 paul  paul     0B May 18 09:37 kde-icon-cache.updated
-rw-r--r--   1 paul  paul   5.0M May  6 16:48 kdiamond-cache.data
-rw-r--r--   1 paul  paul   1.3M May  6 16:48 kdiamond-cache.index
-rw-r--r--   1 paul  paul   120M Mar 20 08:54 plasma_theme_Atelier.data
-rw-r--r--   1 paul  paul    32M Mar 20 08:54 plasma_theme_Atelier.index
-rw-r--r--   1 paul  paul   120M May  4 18:18 plasma_theme_Aya.data
-rw-r--r--   1 paul  paul    32M May  4 18:18 plasma_theme_Aya.index
-rw-r--r--   1 paul  paul   120M May 18 09:37 plasma_theme_Elegance.data
-rw-r--r--   1 paul  paul    32M May 18 09:37 plasma_theme_Elegance.index
-rw-r--r--   1 paul  paul   120M Mar 22 19:17 plasma_theme_Glassified.data
-rw-r--r--   1 paul  paul    32M Mar 22 20:05 plasma_theme_Glassified.index
-rw-r--r--   1 paul  paul   120M Mar 20 08:53 plasma_theme_Led 
revolution.data
-rw-r--r--   1 paul  paul    32M Mar 20 08:54 plasma_theme_Led 
revolution.index
-rw-r--r--   1 paul  paul   120M Mar 20 08:54 plasma_theme_Oxyook.data
-rw-r--r--   1 paul  paul    32M Mar 20 08:55 plasma_theme_Oxyook.index
-rw-r--r--   1 paul  paul   120M May  4 18:19 plasma_theme_default.data
-rw-r--r--   1 paul  paul    32M May  4 18:19 plasma_theme_default.index
-rw-r--r--   1 paul  paul   120M Mar 20 08:55 plasma_theme_spoons.data
-rw-r--r--   1 paul  paul    32M Mar 20 08:55 plasma_theme_spoons.index
demophon# du -h .
7.6M    .
demophon#



demophon# zfs 
list                                                           
NAME                                USED  AVAIL  REFER  
MOUNTPOINT           
DemoPool                           66.8G   382G  30.6K  
/DemoPool            
DemoPool/root                   1.67G   382G  1.67G  /DemoPool/root       
DemoPool/tmp                   3.03G   382G  3.03G  /DemoPool/tmp        
DemoPool/usr                    59.6G   382G  59.6G  /DemoPool/usr        
DemoPool/var                    2.51G   382G  2.51G  /DemoPool/var        
zfsroot                                79.0G   145G    18K  
none                 
zfsroot/root                        1.78G   145G  1.78G  
/                    
zfsroot/tmp                        3.67G   145G  3.67G  
/tmp                 
zfsroot/usr                         72.1G   145G  59.2G  
/usr                 
zfsroot/usr@auto.... (removed huge list for email)
zfsroot/var                         1.50G   145G  1.18G  /var
zfsroot/var@auto.... (removed huge list for email)
demophon#




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