Changes between Version 3 and Version 4 of backup


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Timestamp:
Oct 6, 2014, 11:49:19 AM (9 years ago)
Author:
knpa
Comment:

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  • backup

    v3 v4  
    11= Back up =
    22
    3 This page describes how data is backed-up at ARSF-DAN.
     3This page describes how and where data is backed-up at ARSF-DAN.
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    55Back-up data should be linked from /users/rsg/arsf/backups/
     
    1111There are two types of back-up:
    1212
    13 1. Mirror of arsf_data:[[BR]]This is located at ~arsf/backups/arsf_data_mirror/. It is an exact copy of everything under ~arsf/arsf_data/ EXCEPT flights which have been archived with NEODC.[[BR]]If you accidently delete a file in arsf_data while processing, you can come here and retrieve a copy, as long as it was present for the overnight backup.
     131. Mirror of arsf_data:[[BR]]This is located at ~arsf/backups/arsf_data_mirror/. It is an exact copy of everything under ~arsf/arsf_data/ EXCEPT flights which have been archived with NEODC.[[BR]]If you accidently delete a file in arsf_data while processing, you can come here and retrieve a copy, as long as it was present for the overnight backup. The list of archived flights which are ommitted from the backup is at ~arsf/archived_flights.txt. This is updated as part of the archiving process.
    1414
    15152. Record of past changes:[[BR]]This is located at ~arsf/backups/rdiff_backup/. This hold a record of changes to small files (anything under 1MB I think). This way, we can recover changes to text files e.g. configs, made weeks or months ago. We can also find out the details of how something was processed by looking here. The rsync related comman `rdiff` is used to create these. Each flight is in a different folder. The past changes are help in ~arsf/backups/rdiff_backup/<flight_dir>/rdiff-backup-data/. To recover the changes, please see documentation on rdiff.