More information about the service:
Here an overview of the current hardware used in our Commvault system.
We run backup servers in the Chemistry / ITS central campus data centre. There are no production servers in this location. Backup data is never stored in the same location as your servers storage.
Our data centres are:
We can perform backups over the standard campus network. If required, a dedicated backup VLAN is avalible in ITS data centres.
We have dedicated 40Gbit connectivity to the campus network.
SAN storage is connected by a multiple connections to a dedicated FC fabric. The network covers two datacenters, allowing us to efficiently write to tape in a seperate location.
HP DL380p Servers
Our 'media agents' which receive the backup data are HP DL380p G8 servers.
Fast Disk Storage
We have six NexSan E60 SAN arrays to store deduped backup data.
We also have two Supermicro Hyperscale storage arrays to store deduped backup data.
We have a Quantum i6000 Library in two of our data centers.
4 CAB LTO5 Library
Backups are retained depending on the service you choose, however the retention concept remains the same.
Here is an example of the restore points, for a server on the 'Standard Backup' product.
› 14 Daily Backups
› 4 End-of-week backups
› 12 End-of-month backups
› 2 End-of-year backups
This example assumes today is the 2nd of April 2015. The Green highlighted days show the restore points avalible.
As you go back in time, the restore points get further apart. To restore a file, it must have existed during one of the backup events. For example, If you created a file on 21 Dec 2014 and deleted it on the 24th Dec 2014, it would not be avalible to recover as only the monthly backup is kept that far back.
There are several options avalible to manage risk of data loss. Here are are some valid options, priced per TB per year.
|Option||Benefits||Drawbacks||Restore Points||Hardware Failure||Software Failure||User Error||Additional Cost
per TB / Year
|Snapshot / Previous Versions||
|ITS Backup Service||
- 5 year hardware refresh cycle where used.
- Primary storage costed at £75/TB/Year (Staff Bulk Filestore)
- Restores points '?' where they can vary depending on config or avalible space.