# MOM6 Regional Error: segment data are not on supergrid **URL:** \ **Category:** COSIMA\ **Tags:** mom6\ **Created:** [18 April 2024 06:34 UTC](https://forum.access-hive.org.au/t/mom6-regional-error-segment-data-are-not-on-supergrid/2046 "2024-04-18T06:34:14Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![john\_reilly](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/john_reilly/32/237_2.png) [@john\_reilly](https://forum.access-hive.org.au/u/john_reilly)\ **Post date:** [18 April 2024 06:34 UTC](https://forum.access-hive.org.au/t/mom6-regional-error-segment-data-are-not-on-supergrid/2046/1 "2024-04-18T06:34:14Z")
After a bit of a hiatus in running the regional mom6 on Setonix, I’ve tried picking this up again from a later restart file. I was a bit silly and hadn’t backed up some of the input files, so needed to make a new hgrid before generating the new forcing segments. When running this on Setonix, I receive the error message: **segment data are not on supergrid**. Has anyone seen this before? @ashjbarnes @schmidt-christina @angus-g It occurs after the following line in the `mom6.out` file: `NOTE from PE 0: MOM\_restart: MOM run restarted using : INPUT/MOM.res\_2.nc FATAL from PE 49: segment data are not on the supergrid` Any idea what to check here? Thankyou! ---
**Author:** ![john\_reilly](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/john_reilly/32/237_2.png) [@john\_reilly](https://forum.access-hive.org.au/u/john_reilly)\ **Post date:** [18 April 2024 23:34 UTC](https://forum.access-hive.org.au/t/mom6-regional-error-segment-data-are-not-on-supergrid/2046/2 "2024-04-18T23:34:10Z")
Scratch this - realised I was using forcing segments created from a slightly different hgrid. If this error pops up; check x/y length of `forcing_obc_segment_00X.nc` vs hgrid (supergrid) shape.