Backups: Difference between revisions

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There are at least three ways to make backups: 
* a) We give you a 5TB portable drive, you keep it and write to it. Please ask for one!
* b) Use CrashPlan/rsync and/or DropBox/Sync/Box.com to create backups in the cloud.
* c) We backup /nfs/home and some other disks to tape, as follows:


Backups are run as follows:
== Daily incremental backups, off-site quarterly ==
* Weekly starting Friday night: /nfs/home/
* Cluster 2: dalet:/srv/home/ ('''/nfs/home''')
* Quarterly on the first day of the quarter:  /nfs/db, /nfs/store
* Cluster 2: bet:/srv/soft ('''/nfs/soft''')
* Never: /nfs/work, Laptops, Desktops
* No other files are backed up routinely.
* You are encouraged to use a USB drive on your desktop or laptop for supplemental backups of key files.


We have four save packs that we rotate for /nfs/home. We set aside one of these savepacks quarterly, on the first backup of the quarter, as an offsite backup. Thus at any time there is a weekly backup made starting Friday night for the last four weeks, and a quarterly backup for the last four quarters.
== Quarterly backups, starting first day of quarter ==
* Cluster 2: bet:/srv/store ('''/nfs/store''')
* Cluster 2: shin:/db ('''/nfs/db''')*
* Cluster 2: aleph:/var/lib/libvirt/images
* Cluster 2: tet:/var/lib/libvirt/images
* Open-E DSS requires special backup consideration
 
== Never backed up (to tape) ==
* Cluster 2: bet:/srv/work ('''/nfs/work''')
* Laptops
* Desktops
* No other user files are backed up, ever, unless by special request and agreed by email exchange.
 
== Tape rotation and length of historical data ==
* We have four savepacks (sets of tapes, in a suitcase) that we rotate for /nfs/home.  
* We set aside one of these savepacks quarterly, on the first backup of the quarter, as an offsite backup.
* We also pull savepacks out of rotation from time to time to provide additional long-term backups.


= Note =
= Note =
At time of writing, this policy is only implemented on [[Cluster 2]].  We are currently implementing it on [[Cluster 1]] and [[Cluster 0]].  We will update this page when those two systems adhere to the stated policy. In the meantime, ask us if you have any doubts.
At time of writing, this policy is only implemented on [[Cluster 2]].


= Restore =  
= Restore =  
To have files restored from backup, please write to the [[sysadmin]]s, stating file/directory name, the approximate time of when it was created in the form you want restored and when that copy was deleted or damaged.
To have files restored from backup, please write to the [[sysadmin]]s, stating file/directory name, the approximate time of when it was created in the form you want restored and when that copy was deleted or damaged. Even better, just use your own USB drive!


= See Also =  
= See Also =  
* [[Disk space policy]]
* [[Disk space policy]]


Return to [[:Category:Sysadmin | system administrator's guide]].
[[Category:Sysadmin]]
[[Category:Internal]]
[[Category:Internal]]
[[Category:Sysadmin]]
[[Category:Policy]]

Latest revision as of 04:10, 3 June 2015

Policy

There are at least three ways to make backups:

  • a) We give you a 5TB portable drive, you keep it and write to it. Please ask for one!
  • b) Use CrashPlan/rsync and/or DropBox/Sync/Box.com to create backups in the cloud.
  • c) We backup /nfs/home and some other disks to tape, as follows:

Daily incremental backups, off-site quarterly

  • Cluster 2: dalet:/srv/home/ (/nfs/home)
  • Cluster 2: bet:/srv/soft (/nfs/soft)

Quarterly backups, starting first day of quarter

  • Cluster 2: bet:/srv/store (/nfs/store)
  • Cluster 2: shin:/db (/nfs/db)*
  • Cluster 2: aleph:/var/lib/libvirt/images
  • Cluster 2: tet:/var/lib/libvirt/images
  • Open-E DSS requires special backup consideration

Never backed up (to tape)

  • Cluster 2: bet:/srv/work (/nfs/work)
  • Laptops
  • Desktops
  • No other user files are backed up, ever, unless by special request and agreed by email exchange.

Tape rotation and length of historical data

  • We have four savepacks (sets of tapes, in a suitcase) that we rotate for /nfs/home.
  • We set aside one of these savepacks quarterly, on the first backup of the quarter, as an offsite backup.
  • We also pull savepacks out of rotation from time to time to provide additional long-term backups.

Note

At time of writing, this policy is only implemented on Cluster 2.

Restore

To have files restored from backup, please write to the sysadmins, stating file/directory name, the approximate time of when it was created in the form you want restored and when that copy was deleted or damaged. Even better, just use your own USB drive!

See Also

Return to system administrator's guide.