Lustre: Verify Lustre FS creation parameters

• Verify the MDS parameters (run on the MDS Server):

[root@atass00 x86_64]$ tunefs.lustre /dev/sda6
checking for existing Lustre data: found CONFIGS/mountdata
Reading CONFIGS/mountdata

   Read previous values:
Target:     lustrewt-MDT0000
Index:      0
Lustre FS:  lustrewt
Mount type: ldiskfs
Flags:      0x5
              (MDT MGS )
Persistent mount opts: iopen_nopriv,user_xattr,errors=remount-ro
Parameters: mdt.group_upcall=/usr/sbin/l_getgroups


   Permanent disk data:
Target:     lustrewt-MDT0000
Index:      0
Lustre FS:  lustrewt
Mount type: ldiskfs
Flags:      0x5
              (MDT MGS )
Persistent mount opts: iopen_nopriv,user_xattr,errors=remount-ro
Parameters: mdt.group_upcall=/usr/sbin/l_getgroups

exiting before disk write.

• Verify the OSS parameters (run on the OSS server)

[root@atass00 x86_64]$ ssh atass02 tunefs.lustre /dev/sda6
checking for existing Lustre data: found CONFIGS/mountdata
Reading CONFIGS/mountdata

   Read previous values:
Target:     lustrewt-OST0002
Index:      2
Lustre FS:  lustrewt
Mount type: ldiskfs
Flags:      0x2
              (OST )
Persistent mount opts: errors=remount-ro,extents,mballoc
Parameters: mgsnode=172.20.0.4@tcp


   Permanent disk data:
Target:     lustrewt-OST0002
Index:      2
Lustre FS:  lustrewt
Mount type: ldiskfs
Flags:      0x2
              (OST )
Persistent mount opts: errors=remount-ro,extents,mballoc
Parameters: mgsnode=172.20.0.4@tcp

exiting before disk write.