If you try to create a directory for yourself under the /panasas/scratch subdirectory, you will get a 'Permission denied' error. As an example:
mkdir: cannot create directory ‘/panasas/scratch/ccrgst72’: Permission denied
Users must use their group's scratch directory for the new Panasas scratch storage and can create themselves a directory within their group's subdirectory. For more information about using Panasas scratch storage please see this article.