Re: New Package: defrag 0.6-1
On Sat, 9 Nov 1996, Daniel Quinlan wrote:
> Christoph Lameter writes:
>
> > Package: defrag
> > Architecture: i386
> > Depends: ${shlibs:Depends}
> > Description: defragmenter for ext2 minix xiafs file systems
> > As a file system is used, data tends to become more and more scattered
> > over the disk, degrading performance. A disk defragmenter simply
> > reorganises the data on the disk, so that individual files occupy a
> > single sequential set of disk blocks, and all the free space on the
> > disk is collected together in a single region. This generally means
> > that reading a whole file is more efficient.
>
> Please note in this description that fragmentation is generally not a
> problem in ext2, the default filesystem for Debian Linux.
Unless you fill up a partition at some point, then the only way to
defrag the partition is to back it up and then restore it. A way to force
defragmenting would be very nice to do if you want to do it. I have a
filesystem on my computer that is about 15% fragmented. Instead of doing a
backup and then a restore it would nice if I could just do a defragment on
it.
This defragment binary though doesn't work on my system.
>
> In addition, `defrag' is not designed to be safe and will destroy your
> data if it is interrupted during defragmentation. In other words,
> since ext2 doesn't suffer from excessive fragmentation, nobody uses
> xiafs, and minux is only used for floppies, there is no reason for
> anyone to use this outdated and unsafe program.
>
> Dan
>
> --
> Daniel Quinlan http://www.pathname.com/~quinlan
> quinlan@pathname.com quinlan@transmeta.com (at work)
>
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