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Knowledge Base

How often is my data backed up?

While your project is active, all of your information is backed up daily, weekly and monthly by Hubzero, the platform supporting PURR. Daily backups are kept for 30 days. Weekly backups are kept for 12 weeks, and monthly backups are kept for 12 months.

Once you publish a dataset on PURR, that publication gets backed up additionally. After a 30-day waiting period, during which you can make any necessary minor adjustments to your publication, your published dataset will be archived by the Purdue University Library according to LOCKSS (Lots of Copies Keep Stuff Safe) standards and using the MetaArchive system. Multiple copies of your published dataset will be stored on geographically distributed servers for added security. All copies are continually monitored by MetaArchive for quality control.

If you are concerned about your data security or have questions about accessing a backup copy of your work, please contact the PURR support team

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