The docs say that specifying --failnode should automatically
set mmp on the filesystem. I've seen it work and not work ...
It doesn't in this case ...
mds01:/net/lmd01/space/lustre # mkfs.lustre --reformat --fsname i3_lfs4 --mdt
--mgs --failnode mds02 /dev/mapper/mdt_lustre03-04_00_dm_8_mds01
Permanent disk data:
Target: i3_lfs4-MDTffff
Index: unassigned
Lustre FS: i3_lfs4
Mount type: ldiskfs
Flags: 0x75
(MDT MGS needs_index first_time update )
Persistent mount opts: errors=remount-ro,iopen_nopriv,user_xattr
Parameters: [EMAIL PROTECTED] [EMAIL PROTECTED]
mdt.group_upcall=/usr/sbin/l_getgroups
device size = 5722881MB
formatting backing filesystem ldiskfs on
/dev/mapper/mdt_lustre03-04_00_dm_8_mds01
target name i3_lfs4-MDTffff
4k blocks 0
options -J size=400 -i 4096 -I 512 -q -O dir_index -F
mkfs_cmd = mkfs.ext2 -j -b 4096 -L i3_lfs4-MDTffff -J size=400 -i 4096 -I 512
-q -O dir_index -F /dev/mapper/mdt_lustre03-04_00_dm_8_mds01
Writing CONFIGS/mountdata
mds01:/net/lmd01/space/lustre # mount -t lustre
/dev/mapper/mdt_lustre03-04_00_dm_8_mds01 /mnt/lustre/mdt
mds01:/net/lmd01/space/lustre # lctl dl
0 UP mgs MGS MGS 5
1 UP mgc [EMAIL PROTECTED] 713e72db-26b3-58d7-5424-ad0c1520c915 5
2 UP mdt MDS MDS_uuid 3
3 UP lov i3_lfs4-mdtlov i3_lfs4-mdtlov_UUID 4
4 UP mds i3_lfs4-MDT0000 i3_lfs4-MDT0000_UUID 3
mds01:/net/lmd01/space/lustre # umount -t lustre -a
mds01:/net/lmd01/space/lustre # dumpe2fs -h
/dev/mapper/mdt_lustre03-04_00_dm_8_mds01 |grep feat
dumpe2fs 1.40.4.cfs1 (31-Dec-2007)
Filesystem features: has_journal resize_inode dir_index filetype
needs_recovery sparse_super large_file
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