Back-up Service Replacement Project FAQs

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Code42 (formerly known as CrashPlan) is a cloud-based backup solution, offered by a company also called Code42. Accounts are linked to an individual, accessed via SSO login and can be linked to multiple machines. Key enhancements include: no limit on the amount of data that you can backup, automatic, continuous backup in the background by default, multiple version history allowing point-in-time restores, restores across devices and operating systems, simple user interface and data encryption both in transit and when stored.

  • Time-frame: The rollout of this service completed in January 2022. Code42 is now available to new users (staff, postgraduates and Senior Members).
  • What you will need to do: To register and install Code42 please visit our support page.

To help protect your data from loss, Code42 backup automatically collects and stores every version of every file across all your computers. This article explains the concepts that Code42 uses to back up your data, including how the data is deduplicated, compressed and encrypted before uploading.

Technically there is no limit to the number of computers you can back up under one account. However Code42 do, unsurprisingly, have a fair use policy. They consider four per user to be fair use. However that is averaged over all licenced users and many users are likely to have fewer than four so some users having more than four is not a problem. We may talk to you if you are substantially exceeding four.

You are allowed to back up an unlimited amount of data. Again this is subject to a fair use policy but that is only likely to be a problem if the product is used for uses for which it is not intended. 

Yes. You can restore files backed on one of your devices to any other even if they have different operating systems. If you use the web console to download you can even restore files to a system not supported by Code42.

No. A backed up computer cannot be transferred from one user account to another. The new user would have to backup the system again.
In principle an entire user account including all backup history could be transferred from one SSO to another. However as that might contain personal data that is not to be encouraged and should be done with care and only with permission of the original user.

Additionally, the new SSO could not be an existing user of the Code42 Cloud Backup Service. One way of managing this is for a service administrator to restore the data to a different machine. If a machine is clearly used by multiple clients, then it may be a better candidate for the IBM Spectrum Protect backup service for multi-user machines and servers.

You will lose access to your backups once you Single Sign On expires. As we will need to reuse your licence your Code42 account will then be deactivated and after a period your backups will be deleted.

Probably we will send you warning messages as with the current service. Provided you are still using your account to backup some systems we won’t need to delete any old systems you are no longer backing up. However if you stop using the service altogether we will probably, as at present, warn you and eventually delete your account and data so that your licence can be used by somebody else. Again, as at present, if you are on extended absence this process can be suspended.

Contact the HFS team. With appropriate authorisation we will be able to help with this.

The Code42 software automatically updates. The HFS team can delay updates being delayed for a period once they are released. This will allow us to test a new version before it is widely deployed.

ITSS will be able to see and report on usage of Code42 in their unit through the HFS Portal.

All Code42 knows about you is your SSO username and your name. They do not know your email, status, college, department of anything else. You will not receive email direct from Code42 due to your use of this service as they do not know your email address.

This is why you supply your preferred email address when you register with the HFS for the Code42 service. Any communication will come from the HFS team.

All data is encrypted before it leaves your machine. For information on how the encryption keys are managed see How Code42 handles your encryption keys
If you still feel unhappy and sending that data to the Code42 Cloud it is possible to use the Code42 client to back that data up to a local or network drive.

This is possible but is rarely likely to be desirable once you have migrated to Code42 and your old Spectrum Protect backups have expired.  

The new hardware and software offers improved backup speed, encryption in storage and transit and greater storage capacity. Much of the additional capacity is achieved through the implementation of compression and deduplication of backup and this allows deeper versioning and the possibility of point-in-time restores.


  • Time-Frame: The new server back-up solution is currently being rolled out to existing accounts and expects to complete this by Summer 2022.
  • What you will need to do: End users simply need to update their Spectrum Protect software and/or client configuration in order to use the new service. Fresh backups will be taken to a disk-based backup target; once your local data is protected, your existing account will be closed.

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Now that DigiSafe is available as the formal Archival repository for the University, there is no longer the justification for keeping the HFS Archive.


  • Timeframe – The Archive service closed at the end of 2021.
  • What you need to do: Consider the recommended alternative of DigiSafe.




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