== sanity test 802b: be able to set MDTs to readonly ===== 04:36:15 (1724315775)
mdt.lustre-MDT0000.readonly=0
mdt.lustre-MDT0000.readonly=1
Modify should be refused
touch: cannot touch '/mnt/lustre/d802b.sanity/guard': Read-only file system
Read should be allowed
mdt.lustre-MDT0000.readonly=0
mdt.lustre-MDT0000.readonly=0