Ms. Natalie Danezi Profile

Natalie Danezi

at SURF

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 25 July 2024 Poster + Paper

LOFAR data management at petabyte scale

Aras Bozkurt, Emanuela Orru, Hanno Holties, Marco Iacobelli, Natalie Danezi, Roy de Goei, Yan Grange, Vlad Kondratiev

Proceedings Volume 13098, 130982P (2024) https://doi.org/10.1117/12.3019088

KEYWORDS: Data archive systems, Data storage, Data processing, Data centers, Telescopes, Data conversion, Astronomy

Read Abstract +

The LOFAR Data Valorization (LDV) project aims to curate and add value to the multi-petabyte distributed data collection of the LOFAR Long Term Archive (LTA) as well as to balance resource usage across data centers by re-distributing archived files. It provides a demonstration of practices to be implemented in production for future LTA management. As part of the LDV project, the following topics are described in this paper: Data curation: An effort to assure metadata completeness of tens of millions of files archived over fifteen years of telescope operations called for thorough screening of the content and consistent annotation of the information throughout the data collection catalog. We will show how this challenge was tackled over the first year of LDV operations. Data editing: The data collection of tens of petabytes consists of a broad spectrum of file sizes and data product types. For editing these collections, a suite of workflows has been developed and operated to reduce required storage resources by many petabytes. The first phase main goals of the LDV project that are presented are aimed at improving sustainability of operations as well as user data access experience. Data placement: Handling petabyte-scale data transfers is both time and effort consuming. To make transfer processes more manageable, we have used two services: the LOFAR Stager service, responsible for staging LOFAR data, and the SURF-operated File Transfer Service (FTS). FTS is responsible for bulk data transfers while allowing users to monitor and debug problems. As part of the LDV project, these systems have been used to transfer over one petabyte of LOFAR data so far and are planned to be used to transfer at least three more petabytes. This paper will present the achieved results and provide the next steps for valorizing the LOFAR archive data collection.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years