You can use "lctl set_param llite.*.create_no_open_optimization=0" so that it doesn't matter what "hex_number" is.
Cheers, Andreas -- Andreas Dilger Lustre Principal Architect Intel High Performance Data Division On 2016/06/17, 03:08, "lustre-discuss on behalf of Phill Harvey-Smith" <lustre-discuss-boun...@lists.lustre.org on behalf of p.harvey-sm...@warwick.ac.uk> wrote: Hi all, After working through the "Odd behavior with matlab" theread and applying the patch I can do : lctl set_param llite.home-<hex_number>.create_no_open_optimization=0 Which will allow matlab to run. The problem is that this setting needs to be set every time the system is booted, and also the <hex_number> bit seems to change on every re-boot too. So couple of questions.... 1) Is it possible to make the create_no_open_optimization=0 permanent for the home filesystem? 2) Failing that is there a way to run a simple script that will manually do the lctl set_param on every boot after the lustre filesystem is mounted (I have a script that will extract the correct home- bit from /proc/fs/lustre/llite). If it helps the system is Ubuntu 16.04 LTS, which is fully systemd. Cheers. Phill. _______________________________________________ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org _______________________________________________ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org