This paper looks to be 5 years old (based on newest references it cites - it actually cites others that go back nearly 10 years). It would be interesting to see his take on current deduplication offerings to see if the other checks they contain over simple hashing were enough to allay his concerns.
One thing I've not seen in all this discussion is anyone saying they've actually experienced data loss as a result of commercial deduplication devices. Can anyone here claim that? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Austin Murphy Sent: Monday, October 22, 2007 10:47 AM To: [email protected] Subject: Re: [Veritas-bu] Tapeless backup environments Here is some required reading on the topic from Val Henson, a noted academic/storage-guru. An Analysis of Compare-by-hash www.nmt.edu/~val/review/hash.pdf Of particular interst is why hardware error rates can't be compared with deterministic software errors. Austin _______________________________________________ Veritas-bu maillist - [email protected] http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu ---------------------------------- CONFIDENTIALITY NOTICE: This e-mail may contain privileged or confidential information and is for the sole use of the intended recipient(s). If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you. ---------------------------------- _______________________________________________ Veritas-bu maillist - [email protected] http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
