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Date: Sat, 24 Nov 2001 20:38:18 -0800 (PST)
From: Mark Hannon <markhannon@optushome.com.au>
To: freebsd-gnats-submit@FreeBSD.org
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Subject: bin/32261: dump creates a dump file much larger than sum of dumped files
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>Number:         32261
>Category:       bin
>Synopsis:       dump creates a dump file much larger than sum of dumped files
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Nov 24 20:40:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Mark Hannon
>Release:        4.4-RELEASE
>Organization:
>Environment:
FreeBSD doorway.home.lan 4.4-STABLE FreeBSD 4.4-STABLE #0: Sun Oct  7 12:59:46 EST 2001     mark@tbird-fe1.home.lan:/site/arch/FreeBSD-i386/usr/src/sys/compile/DOORWAY_IPFW  i386

>Description:
An incremental dump of some filesystems generates dump files
that are much larger than the sum of their dumped files.  I 
wrote a small perl script to check and got the following
results:

doorway:~/proj/dumpsize> sudo ./dumpsize.pl /export /var/dumps/export9-part1
Level 9 dump of /export on doorway.home.lan:/dev/ad0s1h
Label: none
The level 0 dump of /export partition written to /var/dumps/export9-part1
contains 717 files totalling 28006 KB, cf size of dumpfile = 0 ( 104660 )

doorway:~/proj/dumpsize> ll /var/dumps/export9-part1
-rw-r--r--  1 root  wheel  107171840 Nov 25 05:13 /var/dumps/export9-part1

The size of the dumped files totals 28 MB whilst the dump file is 105MB.

Any ideas as to what the rest of the file contains?
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:

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