Darren, we have spent much time on this topic. I have provided enough NetApp docs to you and you seem studied. So please study the ZFS docs available at Sun. Any thoughts you need folks to validate, please post. But the list does not do the thinking for you.
The ways of implementing technologies are almost infinite and things can go wrong in different ways for different causes. And addtional elements in the solution will impact the overall chance of things going wrong. That's as much as I can say, based on your question. Goodnight! z ----- Original Message ----- From: "A Darren Dunham" <ddun...@taos.com> To: <zfs-discuss@opensolaris.org> Sent: Monday, January 05, 2009 2:42 AM Subject: Re: [zfs-discuss] ZFS vs HardWare raid - data integrity? > On Sat, Jan 03, 2009 at 09:58:37PM -0500, JZ wrote: >>> Under what situations would you expect any differences between the ZFS >>> checksums and the Netapp checksums to appear? >>> >>> I have no evidence, but I suspect the only difference (modulo any bugs) >>> is how the software handles checksum failures. > >> As I said, some NetApp folks I won't attack. >> http://andyleonard.com/2008/03/05/on-parity-lost/ >> >> And some I don't really care. RAID-DP was cool (but CPQ ProLiant RAID ADG >> was there for a long time too...). >> http://partners.netapp.com/go/techontap/matl/sample/0206tot_resiliency.html >> >> And then some I have no idea who said what... >> http://www.feedage.com/feeds/1625300/comments-on-unanswered-questions-about-netapp >> > > Those documents discuss the Netapp checksum methods, but I don't get > from them under what situations you would expect the ZFS and Netapp > techniques would provide different levels of validation (or what > conditions would cause one to fail but not the other). > > -- > Darren > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
