Glossary

Australian Academic and Research Network (AARNET): A national high bandwidth data transfer service for use by academic and research institutions.

Australian Access Federation (AAF): A is a federated trust network where an institution authenticates the identity of its own people to other institutions. This allows a service provider to manage access to their service without the overhead of maintaining authenticated identities for all of its potential users. For users this allows them to access a broad range of services provided by many institutions using their normal sign-on details.

Collections Manager: VicNode Office role supporting Data Custodians in identifying the appropriate storage type for their collection, performing a business relationship manager role for the VicNode Service.

Data Collection Owner / Data Custodian: The main contact for the data collection that has authority to decide where the collection is hosted and who may have access.

Data Collection Technical Contact: Contact identified by the Data Collection Owner to administer the storage volume. This may be the Data Collection Owner. The Technical Contact will have the authority to add and remove access to the volume for other researchers.

Technical Infrastructure Specialist: VicNode Office role who provides technical advice on ingesting, hosting and transfer of data collections, and acts as a technical liaison between the VicNode Office, VicNode Sites Data Custodians and Technical contacts.

Data Protection: VicNode has put in place measures so that research data can be recovered in the case of an infrastructure failure and loss of data. This includes recovery from corrupt data caused by bit rot, write errors, etc. The Data Protection measures put in place for the Vault and Market Storage Types do provide a limited capability to recover from accidental deletion of data items.

Direct Access to Storage: VicNode provisions the Vault and Market types of storage as addressable volumes to users. In some cases users will be able to directly access the storage allocation on their desktop or through a browser.

Inherent Data Protection: The built in data protection offered on a Storage Type, that is the inherent data protection capabilities provided by the storage technology. RAID, checksum, parity checking, and other data integrity management technologies are used. This does not include the protection provided by storing additional copies of the data on VicNode infrastructure.

MASSIVE: MASSIVE – the Multi-modal Australian ScienceS Imaging and Visualisation Environment. A very large compute and storage array located at Monash that allows researchers to visualise, process and reconstruct large-scale and multi-dimensional data

Monash Campus Cluster (MCC): Previously known as Monash Sun Grid (MSG), MCC is a high-throughput/high-performance compute facility for a wide-range of workloads that are not suited to run on external compute facilities, e.g., very high memory and/or I/O-intensive tasks that require tight data integration with scientific instruments.

Mediated Access to Storage: The Computational storage type provides block level access to the provisioned VicNode storage to a mediating application. Users will not have direct access to the storage as the application will control access management for the storage. VicNode will provide access to the storage to the application, not individual users.

National eResearch Collaboration Tools and Resources (NeCTAR): A federally funded project to provide eResearch infrastructure in the areas of Virtual Laboratories, eResearch Tools, Research Cloud, National Servers Programme

Off-site Replica: A replica of a dataset held at another physical site geographically separate from the source dataset. Replicas are kept for disaster recovery. VicNode stores replicas for Market and Vault storage types.

Operational Support Fee: The fee charged to cover the support and operation of the VicNode Infrastructure. The Operational Support Fee will be charged on a unit basis, for example, per terabyte.

RAID: Redundant Array of Independent Disks – is a storage technology that combines multiple disk drive components into a logical unit. Data is distributed across the drives in one of several ways called “RAID levels”, depending on the level of redundancy and performance required.

RAID levels greater than RAID 0 provide protection against unrecoverable (sector) read errors, as well as whole disk failure.

Research Data Storage Infrastructure (RDSI): A federally funded initiative aimed at providing a national data storage service for researchers to encourage collaboration. This initiative was the original project which funded the creation of VicNode

Research Data Services (RDS): The Research Data Services (RDS) project is a continuation of foundations project the Research Data Storage Infrastructure (RDSI). RDS supports service development for prioritised research domains/disciplines and continued operational support for existing infrastructure

RDS UQ: RDS at the University of Queensland (UQ). UQ is the lead agent for the RDSI initiative.

Referral Network: Each Victorian university has nominated a person to act as a first point of contact for members of the university with queries about the VicNode Service. This group of contacts is known as the Referral Network. Each participating university and its contact point is listed under Contacts

Replication: A replication is a copy of a dataset that is transferred to another location by the storage infrastructure, enabling the data to be recovered in the event of a disaster.

VicNode is not currently offering a storage failover service where mirrored replication would be required to keep the two copies synchronised. Any failover processing requires coordination at the application level to be effective. For this reason VicNode is leaving it to the owner of the data to implement any needed failover processing through the application, not the storage.

Snapshot: Snapshot is a proprietary functionality that locks data on disk to a particular state at a point in time. The data can be recovered in that state for as long as the snapshot is kept. The snapshots are stored within the storage allocation and require additional space to facilitate. If available, Snapshot functionality is applied at the volume, not file or collection level, so it would be on or off for particular Storage Types.

Snapshots are not backups, they are stored on the same disk as the data, so if the disk is corrupted then the active data plus the snapshot data will be lost. To be used as part of a backup process, the snapshots must be copied off the disk where they were created.

Storage Types: VicNode offers three types of storage to users:

  • Vault (VST1): for the Dissemination, Publication, Preservation of research data
  • Market (VST2): for collaborative and developmental research data storage
  • Computational (VST3): to hold research data requiring associated processing capabilities.

Each type of storage has a set of characteristics that will suite different needs of researchers. See the Storage Type descriptions for more details.

Tightly Coupled Storage: The allocated storage is directly connected to research processing infrastructure through high-performance links for increased through-put. The processing capability would be outside VicNode but inside the datacentre hosting VicNode to allow the close connection and high throughput.
For example, VicNode storage accessed from the NeCTAR Research Cloud Compute Facilities located in the two universities’ datacentres.

Victorian Education and Research Network (VERNet): VERNet designs, builds, operates and manages a data transfer and communications network for educators, researchers and students within Victorian Universities and research institutes. Operates the Victorian Research Network (VRN).

VicNode Office: Administers the VicNode service to users of the service and coordinates activity between the VicNode hosting sites.

VicNode Office Manager: Ensures the day to day operation of the VicNode Office including reporting on usage and capacity of the service. Liaises between the VicNode Service, the VicNode Directors and VicNode Establishment Committee. Ensures effective communication between the VicNode sites. Supports the processes for applying for VicNode storage.

Victorian Life Sciences Computation Initiative (VLSCI): A Joint Venture between UoM and IBM to provide peak computing services for researchers in the field of Life Sciences.