> What are ext3 expectations of disk (is there doc somewhere)? For > example... if disk does not lie, but powerfail during write damages > the sector -- is ext3 still going to work properly? Nope. However the few disks that did this rapidly got firmware updates because there are other OS's that can't cope. > If disk does not lie, but powerfail during write may cause random > numbers to be returned on read -- can fsck handle that? most of the time. and fsck knows about writing sectors to remove read errors in metadata blocks. > What abou disk that kills 5 sectors around sector being written during > powerfail; can ext3 survive that? generally. Note btw that for added fun there is nothing that guarantees the blocks around a block on the media are sequentially numbered. The usually are but you never know. Alan - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html