[lustre-discuss] [EXTERNAL] mdt and mgt are always in RO mode

[Mohr, Rick]

Ran,

This is normal.  The MGTs/MDTs/OSTs will always show up as read-only in the output from the "mount" command, even when the lustre file system is writable.

--Rick



On 8/5/25, 1:15 PM, "lustre-discuss on behalf of Ran Mo via lustre-discuss" <lustre-discuss-bounces at lists.lustre.org <mailto:lustre-discuss-bounces at lists.lustre.org> on behalf of lustre-discuss at lists.lustre.org <mailto:lustre-discuss at lists.lustre.org>> wrote:


Greenings,

I tried installed Lustre many time (both 2.15.6 and 2.15.7) but mdt and mgt are always under read only mode. 
=====
[root at mds_node ~]# mount | grep nvme
/dev/nvme0n1p1 on /boot type xfs (rw,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota)
/dev/nvme0n2 on /mnt/mgt type lustre (ro,svname=MGS,nosvc,mgs,osd=osd-ldiskfs,user_xattr,errors=remount-ro)
/dev/nvme0n3 on /mnt/mdt type lustre (ro,svname=lustrefs-MDT0000,mgsnode=192.168.31.20 at tcp0:192.168.31.20 at tcp,osd=osd-ldiskfs,user_xattr,errors=remount-ro,_netdev)
[root at mds_node ~]#

I tried umount and mount and other methods, but unfortunately, cannot get it into RW mode.

Can you give me a hint please? Thanks,

Ran