= Backup Architecture =

Please see our [wiki:data_backup Backup page for users], which provides a general overview of the backup system.

== Offsite backup ==

We currently run one offsite backup server called sittingbull located in our Sunset Park Location and provisioned via a Speakeasy DSL line. This physical machine provides two virtual machines, ali and fannie.

sittingbull has four 3TB disks configured in a RAID10 array, providing a total of 6TB of backup storage. 

== Onsite backup ==

In telehouse, we have both blanco and robideau. Each machine has two 2TB disks in RAID1 configurations providing 2TB of total space each for a total of 4TB of space in telehouse.

In xo, we have luisa which has four 2TB disks in a RAID10 array, providing a total of 4TB of available space.

== Resources as of 2012-10-14 ==

These number combine unused allocated space plus un-allocated space.

 * sittingbull: 1630GB of 6000GB available (27%)
 * blanco: 292GB of 2000GB available (14.6%)
 * robideau: 1029GB of 2000GB available (51%)
 * luisa: 3920GB of 4000GB available (98%)