Skip to content

Operational Guidance

Session Requirement

Run all operations in resilient sessions:

tmux new -s parkit
# or
screen -S parkit

Open OnDemand graphical sessions are also accepted. projark enforces this for both deposit and retrieve. Disclaimer: Open OnDemand is currently available only on Biowulf compute nodes, not directly on Helix. Since projark is Helix-only today, use tmux/screen on Helix; Open OnDemand support is future-facing until Helix access is available.

Scratch Paths

Default staging/retrieval base:

/scratch/$USER/CCBR-<projectnumber>/

Datatype subfolders (Analysis/Rawdata) are managed automatically.

Split Threshold

projark deposit supports configurable split threshold/chunk size:

projark deposit ... --split-size-gb 500

Default is 500 GB.

Cleanup Policy

  • Default: cleanup enabled after successful deposit.
  • To retain artifacts: --no-cleanup.

Logging and Notifications

  • projark logs include ISO 8601 timestamps.
  • On completion/failure, projark sends email to $USER@nih.gov.
  • Notification sender is NCICCBR@mail.nih.gov.