onsdag 12. mai 2004, 22:28, skrev Petter Reinholdtsen: > And to tell you the truth, I do not trust reiserfs. �It will need to > have several years of real world documented experience on flaky > hardware before I trust it to not croak on me when I desperately need > to fetch some files from a disk.
The bad results concerning ext3 was splitting files into small pieces and making/removing 10.000 directories. ext3 are about 7-10 slower to do this than ReiserFS. ext3 is pretty good handling large files and keeps up with the other journaling file-systems in other aspects of the testes. http://linuxgazette.net/102/misc/piszcz/image018.jpg http://linuxgazette.net/102/piszcz.html So the question is how likely it is that 100-250 pupils in a Skolelinux-network will create or delete 10.000 directories that takes 55-142 second on a Western Digital 250 GB ATA/100 disk on a P III 500 MHz machine (i need to take a breath). I don't believe the pupils create thousands of directories. More likely they create 2 or 3, and this has no effect on performance with 250 concurrent users. We also recommend servers with SCSI-disks when there are more than 10 users on a Skolelinux server. The ext3-issue is important for huge data-centres with thousands of users. They probably uses one of the other journaling filesystems as JFS, XFS or Reiser. In such environments they will have many people employed to take the necessary decisions conserning technical aspects of the file-systems, and what to use. As Harald wrote, there is recovery difficulties with Reiser3. It's some other technical issues also with resizing LVM and so on. Thats why we chose ext3 for Skolelinux. - Knut Yrivn The Skolelinux project manager Norway
