Very interesting... I didn't know disk firwares were responsible for automagically relocating bad blocks. Knowing this, it makes no sense for a filesystem to try to deal with this kind of errors.
For now, any disk with read/write errors detected will be discarded from my filers and replaced... Thanks ! Le Tue, 08 Nov 2011 13:03:57 +0000, "Andrew Gabriel" <andrew.gabr...@oracle.com> a écrit : > ZFS detects far more errors that traditional filesystems will simply > miss. This means that many of the possible causes for those errors > will be something other than a real bad block on the disk. As Edward > said, the disk firmware should automatically remap real bad blocks, > so if ZFS did that too, we'd not use the remapped block, which is > probably fine. For other errors, there's nothing wrong with the real > block on the disk - it's going to be firmware, driver, cache > corruption, or something else, so blacklisting the block will not > solve the issue. Also, with some types of disk (SSD), block numbers > are moved around to achieve wear leveling, so blacklistinng a block > number won't stop you reusing that real block. > -- Didier REBEIX Universite de Bourgogne Direction des Systèmes d'Information BP 27877 21078 Dijon Cedex Tel: +33 380395205 _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
