Managing Your Data: Backing Up Your Data Robert Cook Oak Ridge National Laboratory Section: Local Data Management Version 1.0 October 2012.

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Managing Your Data: Backing Up Your Data Robert Cook Oak Ridge National Laboratory Section: Local Data Management Version 1.0 October 2012

Local Data Management - Managing Your Data: Backing Up Your Data ; Version 1.0 October 2012 Overview Provides guidance for individual researchers in backing up data and other digital files ( , documents, etc.) To protect against data loss, create multiple copies of files located in several sites These files can be used to replace lost files

Local Data Management - Managing Your Data: Backing Up Your Data ; Version 1.0 October 2012 Relevance to Data Management Valuable data and information can be lost Limit loss of data, some of which may not be reproducible Save time, money, productivity 3

Local Data Management - Managing Your Data: Backing Up Your Data ; Version 1.0 October 2012 Back up your data files (1 of 2) Create back-up copies often Ideally three copies original, one on-site (external), and one off-site Frequency based on need / risk Higher value data should be backed up more often Sensor data collected at high frequency should be backed up more often 4

Local Data Management - Managing Your Data: Backing Up Your Data ; Version 1.0 October 2012 Back up your data files (2 of 2) Ensure that, when created, all backup copies are identical to the original files Checksums calculations based on the contents of a file. If the checksum values of a backup and the original are the same, it is highly likely the files are the same. File comparison Use software to compare two files line by line and identify any differences. 5

Local Data Management - Managing Your Data: Backing Up Your Data ; Version 1.0 October 2012 Use reliable devices for backups Managed network drive Raid, tape system Managed cloud file-server DropBox, Amazon Simple Storage Service (S3), Carbonite 6

Local Data Management - Managing Your Data: Backing Up Your Data ; Version 1.0 October 2012 Test your backups Automatically test backup copies of files frequently to ensure they are viable Media degrade over time Annually test copies using checksums or file compare Know that you can recover from a data loss Periodically test your ability to restore information (at least once a year) Each year simulate an actual loss, by trying to recover solely from the backed up copies 7

Local Data Management - Managing Your Data: Backing Up Your Data ; Version 1.0 October 2012 References Brunt, J “Protecting Your Digital Research Data and Documents”, LTER Forum. DataOne Best Practices, see Data Preservation and Backup: 8

Local Data Management - Managing Your Data: Backing Up Your Data ; Version 1.0 October 2012 Resources Tools to generate checksums File Comparison Software For more information about backing up your data: For more information about cloud storage services :

Local Data Management - Managing Your Data: Backing Up Your Data ; Version 1.0 October 2012 Other Relevant Modules For information about how you might document the backup strategies for your data, see Data Management Plans: Elements of a Plan Backups, Archives, and Preservation Strategy 10

Local Data Management - Managing Your Data: Backing Up Your Data ; Version 1.0 October 2012 Cook, R “Local Data Management – Managing Your Data: Backing Up Your Data.” In Data Management for Scientists Short Course, edited by Ruth Duerr and Nancy J. Hoebelheinrich, Federation of Earth Science Information Partners: ESIP Commons. doi: /P3NK3BZN Recommended Citation