AFS Backups

AFS backups are done through the AFS backup daemon. See the AFS administrator's guide for details on how this works.

We usually run a butc through a root screen session on persephone. To see if it's running, do "sudo screen -r" on persephone and see if it's there. You should run it with 'butc -localauth' so that its tokens won't expire.

You can see all the dumps in a hierarchical form by using the script /afs/.ugcs/ugcs-admin/sysadmin-utils/dumptree. /OffSiteQuarterly is for tapes that will go in the data vault, and /quarterly is for stuff that stays on-site. I try to keep quarterly and monthly backups on one tape, and then rotate out other tapes for weekly backups. You can run backups by running:

backup (this gets you into the interactive backup shell
dump homes /quarter/month#/week#/<day> (look in dumptree to see what the current month/week are)
dump admin /quarter/month#/week#/<day>
<ctrl+c to quit the shell>

Currently, we have "backup" running in the same screen as "butc" is. To access it, log in to persphone and "sudo screen -r". One of the windows (ctrl+a 0) is butc, the other (ctrl+a 1) is backup. This way, we can run scheduled jobs so we don't have to remember to log in every day and run them.

Ask Joshua if you have questions.

To restore, follow the documentation. It will prompt you for tapes, and you just put them in as it asks you.