On Wed, 2008-10-22 at 09:03 -0400, Ric Wheeler wrote: > Avi Kivity wrote: > > Stephan von Krawczynski wrote: > >> > >>> - filesystem autodetects, isolates, and (possibly) repairs errors > >>> - online "scan, check, repair filesystem" tool initiated by admin > >>> - Reliability so high that they never run that check-and-fix tool > >>> > >> > >> That is _wrong_ (to a certain extent). You _want to run_ diagnostic > >> tools to > >> make sure that there is no problem. And you don't want some software > >> (not even > >> HAL) to repair errors without prior admin knowledge/permission > > > > I think there's a place for a scrubber to continuously verify > > filesystem data and metadata, at low io priority, and correct any > > correctable errors. The admin can read the error correction report at > > their leisure, and then take any action that's outside the > > filesystem's capabilities (like ordering and installing new disks). > > > Scrubbing is key for many scenarios since errors can "grow" even in > places where previous IO has been completed without flagging an error. > We'll definitely have background scrubbing. It is a key part of the health of the FS I think. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
