JASMIN's main purpose is to provide large-scale data analysis facilities to support data-intensive environmental science. To enable this, it provides a number of services in a unique purpose-built architecture to enable groups of scientists to work together collaboratively with large datasets. We can group (and colour-code!) these service groups as follows:
User-facing services
These are arranged as follows as the services which users can access:
These services are briefly described below, but for full details of how to access and use JASMIN and its component services, please consult our extensive documentation.
| Information services | ||
|---|---|---|
| Name | Also known as | Details |
| Helpdesk | support@jasmin.ac.uk @cedanews (Twitter) www.ceda.ac.uk/blog | Helpdesk for user queries. Announcements about JASMIN are included in communications made by the CEDA Team via email, news items and tweets. |
| JASMIN Documentation Site | https://help.jasmin.ac.uk | Collection of documentation articles covering all aspects of JASMIN. |
| Beacon | Tool present on both this site and the JASMIN Documentation Site for initiating queries to the Helpdesk. | |
| Metrics | Dashboards showing available resources and usage information. | |
| Status | Information about service status, known issues and upcoming maintenance. | |
| Training | Training and user engagement events organised by the CEDA Team. |
| Access services | ||
|---|---|---|
| Name | Also known as | Details |
| Accounts portal | https://accounts.jasmin.ac.uk | Portal for management of user accounts and access privileges. |
| Login servers | login | Point of access for most users |
| NX-login servers | nx-login | Login servers provding graphical desktop service. |
| Transfer servers | xfer | For moving data in/out of JASMIN |
| High-performance transfer | hpxfer, globus | Services for high-performance/bulk data movement. |
| Analysis compute services | ||
|---|---|---|
| Name | Also known as | Details |
| Scientific analysis servers | sci | Interactive compute nodes for developing & testing code |
| Batch processing cluster | lotus | ~14,000 core mini-HPC for data analysis processing. Currently dominated by CPU nodes, some GPU nodes coming soon. |
| Software | jaspy | Common Python-based software environment and additional components. |
| JASMIN Notebooks service | Provides a web-based interactive Python notebook to experiment with code and data. |
| Storage services | ||
|---|---|---|
| Name | Also known as | Details |
| Home | /home/users | Home directory for user configuration files, code and other small but important data which need to be backed up. |
| Group Workspaces | GWS | Large-scale (1TB to 1PB) but short-term (<5yrs) collaborative storage made available to a group for the duration of a project. GWS manager responsible for organisation of data and controlling access. Comprise storage of different types: disk, tape and object storage. |
| Transfer Cache | XFC | Per-user temporary multi-TB storage with automated usage limits, ideal for re-working data brought in from external sources before transferring to GWS tape or disk storage. |
| Scratch | Temporary storage provided for intermediate data when using the LOTUS batch processing cluster. | |
| CEDA Archive | Long-term curated data archive of Atmospheric science, Climate model and Earth Observation data. Available read-only throughout JASMIN for easy processing. | |
| Joint Data Migration Application | JDMA Elastic Tape | Application for copying/moving data between different media, including tape, disk and object storage. |
| JASMIN Community Cloud services | ||
|---|---|---|
| Name | Also known as | Details |
| Cloud portal | https://cloud.jasmin.ac.uk | Portal for management of cloud tenancies. Allows deployment of virtual machines from catalogue of provided templates. |
| Managed tenancy | Enables communities to have their own "sci" machine(s) over which they have some control. | |
| External tenancy | Portions of cloud infrastructure in which projects can build their own bespoke computing infrastructure, from scratch - for example a project website - or using prebuilt templates using JASMIN's Cluster-as-a-Service (CaaS) system. |
| Network services | ||
|---|---|---|
| Name | Also known as | Details |
| Cloud zone | cloud | |
| Data transfer zone | DTZ | Special area of network (shared with Cloud zone) situated outside STFC network for external tenancies and efficient data transfer operations. |