Hi, How do I disable striping and debugging in a 1.6 Lustre file system that I''ve created? Seems to me tunefs.lustre won''t do this. I tried to format the disk and then re-run mkfs.lustre with lov.stripe.count=0, but keep getting the following error: [root@cfs2 ~]# mkfs.lustre --fsname=testfs --mdt --mgs /dev/hda8 Permanent disk data: Target: testfs-MDTffff Index: unassigned Lustre FS: testfs Mount type: ldiskfs Flags: 0x75 (MDT MGS needs_index first_time update ) Persistent mount opts: errors=remount-ro,iopen_nopriv,user_xattr Parameters: checking for existing Lustre data found Lustre data mkfs.lustre FATAL: Device /dev/hda8 was previously formatted for lustre. Use --reformat to reformat it, or tunefs.lustre to modify. Here is how I formatted the disk: [root@cfs2 ~]# mkfs.lustre --reformat --mdt --mgs /dev/hda8 Permanent disk data: Target: lustre-MDTffff Index: unassigned Lustre FS: lustre Mount type: ldiskfs Flags: 0x75 (MDT MGS needs_index first_time update ) Persistent mount opts: errors=remount-ro,iopen_nopriv,user_xattr Parameters: device size = 2047MB formatting backing filesystem ldiskfs on /dev/hda8 target name lustre-MDTffff 4k blocks 0 options -J size=80 -i 4096 -I 512 -q -O dir_index -F mkfs_cmd = mkfs.ext2 -j -b 4096 -L lustre-MDTffff -J size=80 -i 4096 -I 512 -q -O dir_index -F /dev/hda8 Writing CONFIGS/mountdata lin -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.clusterfs.com/pipermail/lustre-discuss/attachments/20061204/532b0a61/attachment.html