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:
Service groups
User-facing services
These are arranged as follows as the services which users can access:
Service groups
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 and training workshop materials.
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.
Community Cloud
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.
