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Colleagues, I'm reviewing some of our backup strategies and am curious what others are doing. This is for backup, not long-term preservation. In particular, I'm thinking about two classes of storage: collections and working files. I'm thinking of collections as more traditional dark object storage, completed projects. For working files, I'm thinking about active digitization projects, cleanup projects, just-in-case files, etc. For collections, do you use snapshots, replication to spinning disk, and/or tape backup? Incremental and/or full backup? How long do you retain each backups? For working files, do you use snapshots, replication to spinning disk, and/or tape backup? Incremental and/or full backup? How long do you retain the backups? Thanks! Nathan -------- Nathan Tallman Digital Preservation Librarian Product Owner, Digital Collection Repositories Penn State University Libraries (814) 865-0860 <mailto:[log in to unmask]> [log in to unmask]