Error linked to Read-only file system

As the new project filesystem (/lustre2) is mounted read-only, you may encounter an error during your run with the following message:

sys-30 : UNRECOVERABLE error on system request Read-only file system

 This is a know issue with Cray Fortran compiler enforcing the Fortran standards. it will try to open the file read-write regardless of the filesystem being mounted read-only, while code compiled and linked with Intel and GNU compiler will not face similar issue. 

You can fix the issue by specify read-only in your code, eg:

open (2, file = '/lustre2/project/kxxx/myusername/mydata.dat', action = 'read', status = 'old')