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Full Discussion: Directory size larger than file system size?
Operating Systems Solaris Directory size larger than file system size? Post 302378564 by jlliagre on Tuesday 8th of December 2009 07:17:12 AM
Old 12-08-2009
Here is the equivalent example (a 100 MB sparse file on a <10 MB filesystem) but using Solaris and ZFS instead of Linux loopback fs.
Code:
# zfs create -ps -V 10m rpool/volumes/vol1
# mkdir /tmp/sparse_test
# newfs /dev/zvol/dsk/rpool/volumes/vol1
newfs: construct a new file system /dev/zvol/rdsk/rpool/volumes/vol1: (y/n)? y
Warning: 4130 sector(s) in last cylinder unallocated
/dev/zvol/rdsk/rpool/volumes/vol1:    20446 sectors in 4 cylinders of 48 tracks, 128 sectors
    10.0MB in 1 cyl groups (14 c/g, 42.00MB/g, 20160 i/g)
super-block backups (for fsck -F ufs -o b=#) at:
 32,
# mount /dev/zvol/dsk/rpool/volumes/vol1 /tmp/sparse_test
# mount -p | grep vol1
/dev/zvol/dsk/rpool/volumes/vol1 - /tmp/sparse_test ufs - no rw,intr,largefiles,logging,xattr,onerror=panic
# df -h /tmp/sparse_test
Filesystem             size   used  avail capacity  Mounted on
/dev/zvol/dsk/rpool/volumes/vol1
                       7.5M   1.0M   5.7M    16%    /tmp/sparse_test
# cd /tmp/sparse_test
# dd if=/dev/zero of=sparse_file bs=1 count=1 seek=104857599
1+0 records in
1+0 records out
# ls -lh
total 64
drwx------   2 root     root        8.0K Dec  8 13:05 lost+found
-rw-r--r--   1 root     root        100M Dec  8 13:05 sparse_file
+ df -h /tmp/sparse_test
Filesystem             size   used  avail capacity  Mounted on
/dev/zvol/dsk/rpool/volumes/vol1
                       7.5M   1.0M   5.7M    16%    /tmp/sparse_test
# zfs list 
NAME                                     USED  AVAIL  REFER  MOUNTPOINT
...
rpool/volumes                           2,60M  1,31G    19K  /rpool/volumes
rpool/volumes/vol1                      2,58M  1,31G  2,58M  -
# umount -f /tmp/sparse_test
# zfs destroy rpool/volumes/vol1

Note also that Linux loopback filesystem equivalent is Solaris Loopback file driver (lofi) which would also be usable instead of a ZFS volume as I did.
 

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LEARN ABOUT DEBIAN

rrdcollect.conf

RRDCOLLECT.CONF(5)						    RRDcollect							RRDCOLLECT.CONF(5)

NAME

       rrdcollect.conf	--  RRDcollect configuration file.

SYNOPSIS

       /etc/rrdcollect.conf

DESCRIPTION

       The rrdcollect.conf file contains information where to look for data and to which database file put it.

   Variables
	      # Configuration values:
	      step = 60
	      directory = /var/local/rrd
	      loglevel = LOG_NOTICE

   Patterns
	      # System statistics:
	      file:///proc/stat
	      "cpu %d %d %d %d"    stat.rrd:user,nice,system,idle
	      "processes %u"	   stat.rrd:processes
	      "swap %u %u"	   stat.rrd:swap_in,swap_out

	      # System load: 1, 5 and 15 min. average
	      file:///proc/loadavg
	      "%f %f %f"	   avg1.rrd:load,avg5.rrd:load,avg15.rrd:load

	      # Memory usage:
	      file:///proc/meminfo
	      "Mem:  %*d %d %d %d %d %d"    memory.rrd:used,free,shared,buffers,cached
	      "Swap: %*d %d %*d"	    memory.rrd:swap_used

	      # S.M.A.R.T. HDD temperature:
	      file:///proc/ide/hda/smart_values
	      7:"%*04x %*04x %02x%*02x"       temperature.rrd:hda

   Regular expressions
	      # Using regular expressions:
	      file:///proc/stat
	      /cpu  (d+) (d+) (d+) (d+)/	stat.rrd:user,nice,system,idle

       Please look into examples/ directory for working examples.

FILES

       /etc/rrdcollect.conf

SEE ALSO

       rrdcollect(8), rrdtool(1), pcre(3)

AUTHOR

       Dawid Kuroczko <qnex@knm.org.pl>
       Artur R. Czechowski <arturcz@hell.pl>

2 September 2002						 RRDcollect 0.2.10						RRDCOLLECT.CONF(5)
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