flexible hybrid archiving solution MagnaStor
The management costs of an optical or tape library make them impractical for most individuals--especially if you want off-site storage. ZFS is cool for local storage, but again, poor integration for off-site redundancy (unless you want to administer that too).
I worked on a product (http://magnastor.com/solutions/) which I think combines the best of tape, disk, and cloud storage.
The UPSHOT is for less money as you'd spend on one LTO drive alone, you can get about 40 TB-years of great local storage, great private off-site redundancy (e.g. on Amazon Glacier on another continent), it's easy to manage, familiar hardware, and low up front costs.
MagnaStor:
- enables you to use your existing locally attached disks
- is checksummed, does continuous data protection, and block-level deduplication
- easy built-in replication to other media, local or remote, and to Amazon S3/Glacier, for low-cost, online off-site redundancy
- uses client-side encryption, keys never leave your machine, so your data remains private
- automatically repairs/restores local storage using cloud backup (or other redundancy)
I do have quite a bias, as one of the developers, but we engineered it so we'd like all the answers to questions we'd have looking for an archival solution.