Old:DryadUK WP1

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DryadUK WP1: Establishing and using a UK mirror site for Dryad

Status: This page is outdated and of historical use only.

This page describes work done by the DryadUK project from 2010 to 2011.

Task list

Steps completed:

  1. BL will have a base machine up
  2. BL node installed and tested
  3. DNS routing tested (European traffic goes to BL, all other traffic goes to NCSU)
  4. Modified submission system so submit button/links always go to US node
  5. Footer display of node name (users can tell which node they are connected to)

Steps remaining:

  1. Enable stats/logging at BL, so we can display combined access statistics
  2. Failover testing
  3. Enable DNS redirection for production system


The BL node is a virtual server running Linux (what flavor?).

Minimum specifications:

  • 2 processors
  • 4GB RAM
  • 1TB disk

Steven Lilgert will work on installation of the node. Primary administration will be performed by BL, with help from NESCent.


The multiple nodes will appear as a single system. Everything will stay datadryad.org -- emphasizing the international nature of the project. Users may see a message in the page footer to tell them which node is currently connected.

  • DNS "nearest server" load balancing will need to be set up, possibly using a service like ZoneEdit.

Modifications to submission system for BL node:

  1. Phase 1: Submission, curation at US only
  2. Phase 2: Testing of transatlantic transfer rates -- submission to a BL site vs submission/curation at a US site. Assignment of appropriate DOIs (US/UK) based on journal.
  3. Phase 3: (likely not in this grant) Full submission at both US and BL, with bidirectional sync.

Failover process

  1. UK: failover for access (submission would require a more complex setup)
  2. US: will develop failover between NCSU and NESCent for submission