On Tue, Jan 6, 2015 at 12:23 PM, Eric Sandeen <sandeen@xxxxxxxxxxx> wrote: > On 1/6/15 1:05 PM, Chris Murphy wrote: >> On Tue, Jan 6, 2015 at 10:02 AM, Eric Sandeen <sandeen@xxxxxxxxxxx> wrote: >>> however, some drives lie about these sizes, and then mkfs.xfs can't know. >>> Try the blockdev command above to see. >> >> blockdev and parted seem to get this wrong for a device for which >> smartctl and hdparm get correct > > I don't think they get it wrong, they are just reporting what the > drive says over that interface. The problem may be that the drive isn't being queried, but rather the bridge chipset involved. All drives are AF drives in USB 3 enclosures. But somehow hdparm and smartctl are getting actual drive info from the drive through this interface; while the kernel appears to be fooled by bridge. I don't immediately have a way to directly connect any to SATA. I will bet dollars to donuts this is what's going on though, because I know one of these drives when it was connected via SATA was reported by parted as 512B/4096B but currently it isn't. -- Chris Murphy _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs