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Re:FreeBSD 9.1 Release Announcement by rauar on Sunday December 30, 2012 @05:24PM (#4987357)
Snapshots
Re:FreeBSD 9.1 Release Announcement by mkup on Sunday December 30, 2012 @05:44PM (#4987421)
and checksums (bit rot prevention)
Re:FreeBSD 9.1 Release Announcement by benjohnson on Sunday December 30, 2012 @06:13PM (#4987505)
I'm amazed at how generally unreliable drives are at retrieving stored data with ZFS checksums in place to highlight the problem - it seems that on average every TB of storages has a problem with a block every half-year or so.
Re:FreeBSD 9.1 Release Announcement by ChuckMcM on Sunday December 30, 2012 @07:42PM (#4987756)
And every 4GB of memory or so if you have ECC turned on.