Old:DryadUK WP1

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Status: This page is outdated and of historical use only.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

Hardware
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.

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