Backups: Difference between revisions

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There are at least three ways to make backups: 
* a) We give you a 4TB portable drive, you keep it and write to it. Ask for one.
* b) Use CrashPlan/rsync and/or DropBox/Sync/Box.com to create backups in the cloud.
* c) We backup major cluster disks to tape, as follows:


Backups are run as follows:
== Weekly backups, starting Friday night ==
* Weekly starting Friday night: /nfs/home/
* Cluster2: /nfs/home/
* Quarterly on the first day of the quarter: /nfs/db, /nfs/store
== Quarterly backups, starting first day of quarter ==
* Never: /nfs/work, Laptops, Desktops
* Cluster 2: /nfs/db
* Cluster 2: /nfs/store  
== Never backed up ==
* Cluster 2: /nfs/work
* Laptops
* Desktops
* No other user files are backed up, ever, unless by special request and agreed by email exchange.
* No other user files are backed up, ever, unless by special request and agreed by email exchange.
* You are encouraged to use a USB drive on your desktop or laptop for supplemental backups of key files.
* You may copy files from laptop, desktop, instrument machines or elsewhere to your /nfs/home or /nfs/store directories for backup.  You may use CrashPlan or rsync for this.


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. 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.
== 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.
* 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.
* 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]]. [[Cluster 0]] starts June 1, 2014 (with caveats).  
At time of writing, this policy is only implemented on [[Cluster 2]]. Select backups of [[Cluster 0]] will follow soon.


= Restore =  
= Restore =  

Revision as of 18:18, 26 May 2014

Policy

There are at least three ways to make backups:

  • a) We give you a 4TB portable drive, you keep it and write to it. Ask for one.
  • b) Use CrashPlan/rsync and/or DropBox/Sync/Box.com to create backups in the cloud.
  • c) We backup major cluster disks to tape, as follows:

Weekly backups, starting Friday night

  • Cluster2: /nfs/home/

Quarterly backups, starting first day of quarter

  • Cluster 2: /nfs/db
  • Cluster 2: /nfs/store

Never backed up

  • Cluster 2: /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.
  • 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.
  • 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. Select backups of Cluster 0 will follow soon.

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.

See Also

Return to system administrator's guide.