On Mar 9, 2011, at 8:42 PM, Dan Shoop wrote:
> No let me repeat: silent data corruption only occurs under raid5 It has nothing to do with RAID 5 at all. People should know that all drives are at risk of silent data corruption. Not just RAID 5. Here is one of the most definitive research papers on the subject to date: An Analysis of Data Corruption in the Storage Stack http://www.cs.wisc.edu/adsl/Publications/corruption-fast08.pdf "Silent data corruptions could lead to data loss more often than latent sector errors, since, unlike latent sector errors, they cannot be detected or repaired by the disk drive itself. Detecting and recovering from data corruption requires protection techniques beyond those provided by the disk drive. In fact, basic protection schemes such as RAID [13] may also be unable to detect these problems." Chris Murphy_______________________________________________ MacOSX-admin mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-admin
