Ivan Voras wrote: > Rink Springer wrote: > > The 'vscan' user leads me assume this is SpamAssassin - I've seen this > > behaviour at work, where our scripts were trying to backup a 1TB file > > (which actually was ~vscan/.spamassassin/auto-whitelist). The result was > > that the backup script died due to lack of disk space on the backup > > server (as we don't use compression). > > > > When I was investigating why the file could be so large it, it turned > > out the file was only a few hunderd 'real' MB's, so that is why I assume > > this person is having the same issue as we do. The file is a Berkeley DB > > file, by the way, so there's nothing textfile about it ;-) > > I learn something every day :) > Didn't know BDB was smart enough to create sparse files.
BTW, you can use "ls -ls" to display the number of physical blocks allocated to the file, so you can easily see whether a file is sparse or not: $ dd if=/dev/zero of=foo1 bs=1m count=1 $ truncate -s 1m foo2 $ ls -ls foo1 foo2 1040 -rw------- 1 olli olli 1048576 Jun 20 22:43 foo1 32 -rw------- 1 olli olli 1048576 Jun 20 22:43 foo2 As you can see, the file size is the same, but the block counts are different (I have BLOCKSIZE=K in my environment, so the blocks are displayed in 1KB units). I've written a small script that can be used to detect sparse files (it even displays the "sparseness" percentage): http://www.secnetix.de/olli/scripts/sparsecheck Best regards Oliver PS: Of course it is still possible that a file system is corrupt and needs fsck, no matter whether those files are sparse or not. -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "C++ is over-complicated nonsense. And Bjorn Shoestrap's book a danger to public health. I tried reading it once, I was in recovery for months." -- Cliff Sarginson _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
