On Tue, Nov 29, 2011 at 11:38:33AM -0600, Eric Sandeen wrote: > On 11/29/11 11:15 AM, Martin K. Petersen wrote: > >>>>>> "Eric" == Eric Sandeen <sandeen@xxxxxxxxxxx> writes: > > > > Eric> It seems that we should be checking for any alignment offsets in > > Eric> libxfs then, too; if there IS an offset, then perhaps 4k is the > > Eric> wrong answer, (perhaps there is no right answer) but if there is > > Eric> NO offset, 4k should be the right choice, yes? > > > > In most cases the partitioning/DM tools should give you a 0 offset. But > > it would a good idea to at least print a warning if lbs != pbs and > > offset > 0. > > Right, Dave's concern was for when the partitioning tools didn't do the > job, we don't want to break fs consistency guarantees... > > Dave, does checking for an offset before choosing 4k sectors seem > sufficient to you? Yes, especially if combined with Christoph's comments about ensure the "-f" flag is needed to make a filesystem on an unaligned config. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs