As a reminder, the Cray Data Migration Facility is an archiving system, not a backup system. If you delete a file that is marked as migrated, it is gone just as surely as any ohter deleted file.
Backups are the responsibility of each user.
Cray vectorization bug . The problem turned out to be the failure of the vectorinzing compiler to properly deal with some nested do loops. When we replace CF77 6.0.1 with CF77 6.0.4, the problem will be solved permanently. Programming environment upgrade . By press time, the latest CF77 programming enviornment should be installed.