[nzlug] 'Chunked' file systems?

[D Moore]

--- Robin Sheat <robin at kallisti.net.nz> wrote:

> On Friday 01 September 2006 09:07, Cliff Pratt
> wrote:
> > Rather than have a directory with a bunch of tiny
> files in, which causes
> > havoc with backups and copies and such,
[...snip..]
> Typically Linux (and UNIX) 
> filesystems have handled this kind of thing well, I
> thought.
> 
> [0] ext2 is probably good due to being low overhead,
> and the consistency 
> hopefully being provided by the journalling FS below
> it
> 

For better performance with large directories in
ext2/ext3 try switching directory indexing (htrees)
on.

You can do this by
Unmount the device .... 
   umount <device>
Add the dir_index feature to the file system ....
   tune2fs -O dir_index <device>
Rebuild and reindex any directories which are larger
than a single disk block...
   e2fsck -fD <device>
Remount the device
   mount device

HTH YMMV

Cheers, David.

http://www.linuxshowcase.org/2001/full_papers/phillips/phillips_html/index.html


Send instant messages to your online friends http://au.messenger.yahoo.com