PHFS Storage requires PrimeHub Store feature enabled.
When PrimeHub is configured with the enabled PrimeHub Store. There is a folder
phfs mounting in user's Notebook automatically. The folder, actually, is a storage shared among the members of the group via PrimeHub File System (PHFS).
The PHFS Storage in Notebook is just a initial stage of PHFS. So far users are able to store files in the
/phfs (via Notebook, Job artifacts) and share them with other group members, it seems similar to Group Volume, however, there are differences between PHFS and Group Volume. In addition, because the limitations of PHFS, no quota control over PHFS storage and performance, we don't recommend to store datasets or other performance-sensitive data in
/phfs/, please use Group Volume instead.
In near future, PrimeHub will provides more features based on PHFS.