The HFS is widely and extensively used throughout Oxford. In the 7 days up to 2013-Dec-09, 4902 clients accessed the backup and archive servers in 24997 sessions, sending 78.8 million files and 102.2 TB of data. In total the backup and archive servers currently hold 2.501 billion files and 2141.7 TB of data.
We welcome any comments or suggestions about the service using our feedback form.
Your data is sent from your computer, across the university network to the HFS servers and is then ultimately stored on magnetic tape in an automated (robotic) tape library. Our servers and tape library are situated in a climate-controlled, secure location. Three copies of your data are made, each to separate tapes: one copy is held in the automated tape library while two copies are stored in separately located fire-proof safes. Access to the data is private to the owner and is normally available 24 hours a day, seven days a week.
The HFS 3494 tape library was purchased in 1995. It has grown with demand and now spans ten frames containing 24 TS1120 tape drives and around 3300 slots for 3592-type tape cartridges. The latter comprise half-inch tape with an in-the-field capacity of about 1TB per volume, although this may change with future generations of tape drive. The library permanently holds one copy of all data sent to the HFS and therefore has an effective capacity of 3PB (three petabytes).