Thai Nguyen wrote: > Hi Darren, > > The program is doing data comparison when data write and read is > miss-matched, all information such as drive, stripe, sector, LBAs, etc. are > collected where the miss-matched data located and put into a log file or > print out.
I don't believe you will ever be able to see that with ZFS. The reason being is that ZFS checksums all data and metadata on write and read and won't return any data to you if the checksum fails and you have no redundant copy of it for it to automatically correct it. Also ZFS is a Copy-On-Write (COW) filesystem so if a file is modified it isn't changed in place but instead new blocks are allocated for it. This means that any attempt to use lba addressing or similar things is likely fundamentally flawed with ZFS because it just doesn't write like that, also there may be multiple copies of the data (even without RAID you can set copies=2 or copies=3) so which one would the system return the information for ? For more information on ZFS including its on disk format see the OpenSolaris ZFS community. -- Darren J Moffat _______________________________________________ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
