On 19 August 2011 11:15, Tom Evans <[email protected]> wrote: > On Thu, Aug 18, 2011 at 6:50 PM, Yuri <[email protected]> wrote: > > Some latest hard drives have logical sectors of 512 byte when they > actually > > have 4k physical sectors. > ... > Shouldn't UFS and ZFS drivers be able to either read the right sector size
> > from the underlying device or at least issue a warning? > > The device never reports the actual sector size, so unless FreeBSD > keeps a database of 4k sector hard drives that report as 512 byte > sector hard drives, there is nothing that can be done. > > At what point should we change the default in newfs/zfs to 4k? I guess formatting the filesystem for 4k sectors on a 512b drive would still work but it would be suboptimal. What would the performance penalty be in reality? Aled _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[email protected]"
