... short answer - check with your RDSI storage provider

The official public RSDI website is silent on this issue, or indeed on anything about "quality of service" issues.  (I've heard that RDSI did not fund this aspect of the storage problem ... but I've also heard the contrary!)

The answer is that it depends what you mean by backup, and which Node is provisioning the RDSI Collection.  But it is basically "Yes" ... at least to the degree that a complete RDSI collection can be recovered from a previous snapshot in the event of a catastrophic failure.

VicNode

VicNode does not advertise that their storage services are backed up.  However, collections can be replicated, and a replica could be viewed as a sort of backup.

QCIF

The QRIScloud FAQ currently states explicitly that QRIScloud RDSI storage is not backed up, though they mention that it will be replicated. The intention is to offer more:

  • QCIF intend to implement off-line (i.e. tape) backups for all flavours "persistent" storage offerings.  This will be at the coarse-grain end of the spectrum (i.e. infrequent, non-incremental) suitable for restoring a complete collection rather than individual files.  Essentially, these will be off-line replicas.
  • QCIF intend to support HSM for (at least) some RDSI collection volumes.

UPDATE - All QRIScloud RDSI collections provisioned in Tier3 (HSM) now have 3 tape replicas: two on-site and one off-site. Replication of Tier2 (Market disk)  is a work in progress.

QCIF has no plans to offer fine-grained restoration of individual files (a la "time machine") as a service to users.  (It takes a lot of resources to implement this kind of thing ... at scale.)  The tape replicas are designed to protect against data loss due to (QRIScloud) operator error, equipment or media failure, or in the worst case a catastrophe at our primary data centre. QCIF will not undertake to restore files lost due to user or application software errors.

Intersect

Intersect seem to be saying that their storage services are backed up and replicated.  They seem to be taking the view that the collection owner doesn't need to worry about it.