2012-01-13 2:34, Jim Klimov wrote:
I guess I have another practical rationale for a second checksum, be it ECC or not: my scrubbing pool found some "unrecoverable errors". ...Applications need to know whether the digest has been changed.
As Richard reminded me in another thread, both metadata and DDT can contain checksums, hopefully of the same data block. So for deduped data we may already have a means to test whether the data or the checksum is incorrect... Incdentally, the problem also seems more critical for the deduped data ;) Just a thought... //Jim _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
