On Jun 05, 2007 18:47 -0400, Tod Hagan wrote: > The mke2fs man page says > > stride=stripe-size > Configure the filesystem for a RAID array with stripe-size filesystem blocks per stripe. > > So stride = size of stripe/blocksize. > > The size of a stripe is the RAID chunk size * the number of drives in the RAID. 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: > > 1. Parity drive included: 64*6/4 = 96 > 2. Parity drive excluded: 64*5/4 = 80 > > Which is correct? -E stride=16, based on 64k / 4k Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
