On Tue, 2007-06-05 at 17:23 -0600, Andreas Dilger wrote: > Not really. We submitted a patch to clarify this, so the "stride=" value > is the number of blocks on a SINGLE disk. This ensures that the bitmaps > are round-robined across all disks. > > > For example, take the example of six drives configured for RAID 5 with a > > chunk size of 64 and a 4K blocksize: > > -E stride=16, based on 64k / 4k Thanks for clearing this up. The number of blocks for a single disk means you don't have to worry about parity drives, so it's much easier to deal with. And good to hear about the clarifying patch, as I'm not the only person confused by this -- currently, the information on the link below is wrong: http://wiki.centos.org/HowTos/Disk_Optimization Tod -- Tod Hagan Information Technologist AIRMAP/Climate Change Research Center Institute for the Study of Earth, Oceans, and Space University of New Hampshire Durham, NH 03824 Phone: 603-862-3116 _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users