Got it. Even if it's reformatted, still need to use --reformat the second time I do mkfs.lustre. A bit strange though.
Lin > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Lin Shen (lshen) > Sent: Friday, February 09, 2007 3:32 PM > To: Nathaniel Rutman > Cc: [email protected] > Subject: RE: [Lustre-discuss] Reformat doesn't work with l.6beta > > I did a --reformt first, and then followed by another > mkfs.lustre. The enclosed outputs are from two separate commands. > > Lin > > > -----Original Message----- > > From: Nathaniel Rutman [mailto:[EMAIL PROTECTED] > > Sent: Friday, February 09, 2007 3:27 PM > > To: Lin Shen (lshen) > > Cc: [email protected] > > Subject: Re: [Lustre-discuss] Reformat doesn't work with l.6beta > > > > Lin Shen (lshen) wrote: > > > I reformat a mdt partition and it seems to work. But when I > > try to do > > > another mkfs.lustre, it complained that ther eis still > > lustre data on > > > the partition and asked me to reformat it. Any ideas? > > > > > > [EMAIL PROTECTED] ~]# mkfs.lustre --fsname=lustrefs --mdt --mgs > --reformat > > > /dev/hda10 > > > > > > Permanent disk data: > > > Target: lustrefs-MDTffff > > > Index: unassigned > > > Lustre FS: lustrefs > > > 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 = 39MB > > > formatting backing filesystem ldiskfs on /dev/hda10 > > > target name lustrefs-MDTffff > > > 4k blocks 0 > > > options -i 4096 -I 512 -q -O dir_index -F > > > mkfs_cmd = mkfs.ext2 -j -b 4096 -L lustrefs-MDTffff -i > > 4096 -I 512 -q > > > -O dir_index -F /dev/hda10 Writing CONFIGS/mountdata > > > > > > > > > > > > > > > [EMAIL PROTECTED] ~]# mkfs.lustre --fsname=lustrefs --mdt --mgs > > --mkfsoptions > > > -i 2048 /dev/hda10 > > > > > > Permanent disk data: > > > Target: lustrefs-MDTffff > > > Index: unassigned > > > Lustre FS: lustrefs > > > 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/hda10 was previously formatted for > > > lustre. Use --reformat to reformat it, or tunefs.lustre to modify. > > > > > It's refusing to reformat what it has identified as an > > already-formatted Lustre disk. This is a safety feature to prevent > > you from accidentally erasing it, thus destroying your entire > > filesystem. Use the --reformat flag to force it. > > man mkfs.lustre: > > --reformat > > Reformat an existing Lustre disk > > > > _______________________________________________ > Lustre-discuss mailing list > [email protected] > https://mail.clusterfs.com/mailman/listinfo/lustre-discuss > _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
