ma...@mohawksoft.com wrote:
I currently work at a fairly high end deduplicated backup/recovery system company. In a deduplicated system, a "new" backup should not ever be able to trash an old backup. Period. Only "new" data is added to a deduplicated pool and old references are untouched. Old data is not over-written. You can see this behavior in almost any deduplication strategy, including Windows NTFS and ZFS.
You're missing the point. Say you have disk A and disk B. Every block written to A is replicated to B. Data on blocks on A are damaged. Damaged data blocks on A are replicated to B. B is now a 1:1 replica of the trashed data on A. -- Rich P. _______________________________________________ Discuss mailing list Discuss@blu.org http://lists.blu.org/mailman/listinfo/discuss
