Add information on "recommended knowledge" for managing data within LTS allocations.

[wwarriner]

What would you like to see added?

This is a first attempt and it probably needs to be finessed. The intent is to make it clear that (1) LTS requires a greater understanding of technology details than most aspects of our system, and definitely more than GPFS; (2) the allocation owner doesn't need to manage the space alone and can add "Data Stewards"; (3) "Data Stewards" should be tech-savvy; (4) "Data Stewards" should be trustworthy due to having full control of the allocation.

This is taken from a service request I responded to recently.

Permission management and access control for LTS works differently than for GPFS (Cheaha filesystem). With GPFS, we give individuals permission to access the space at the top level, hence the need for the list of people. With LTS, data is stored as objects (like files) within buckets (like directories/folders), and access is controlled by policies applied to buckets. Buckets may only be created by people with full control of the allocation. By default, the only person with the ability to create and delete buckets is the owner. However, we can grant "Data Steward" permissions to additional people. These stewards will also have full control of the allocation, allowing them to manage buckets, potentially easing day-to-day operations. At this time, managing LTS buckets and policies requires an understanding of the terminal, a couple of command-line applications, and a willingness to learn JSON and parts of the Amazon AWS S3 API.

So, if you do not wish to manage the LTS space yourself, we recommend granting Data Steward permissions to someone who is both trustworthy and has knowledge of, or willingness to learn, the above technologies. Here are the choices summarized:

1. The owner, $owner, can manage buckets themselves.
   -- OR --
2. $owner can grant full control of the allocation to one or more other people to allow them to manage buckets.

Which is preferred?