How to use an external USB3.0 drive with 4k sectors?

[Damien Fleuriot]

On 31 May 2012, at 17:57, Jens Schweikhardt <schweikh at schweikhardt.net> wrote:

> hello, world\n
> 
> so I decided to try two HW technology advancements in one go.
> I have a brand new shiny 1TB USB3.0 external disk, that when plugged
> to an USB2(two!) reports
> 
>    da5 at umass-sim2 bus 2 scbus6 target 0 lun 0
>    da5: <ST1000LM 024 HN-M101MBB 0000> Fixed Direct Access SCSI-2 device
>    da5: 40.000MB/s transfers
>    da5: 953869MB (244190646 4096 byte sectors: 255H 63S/T 15200C)
> 
> and
> # diskinfo -v da5
> da5
>        4096            # sectorsize
>        1000204886016   # mediasize in bytes (931G)
>        244190646       # mediasize in sectors
>        0               # stripesize
>        0               # stripeoffset
>        15200           # Cylinders according to firmware.
>        255             # Heads according to firmware.
>        63              # Sectors according to firmware.
>        00A123456789    # Disk ident.
> 
> 
> (The vendor, Jmicron, has put an NTFS on it, with a disk manual as a pdf file.
> Strangely, I cannot mount it with
> # ll /dev/da5*
> crw-r-----  1 root  operator    0, 236 May 31 15:05 /dev/da5
> crw-r-----  1 root  operator    0, 237 May 31 15:05 /dev/da5s1
> # mount -t ntfs -o ro /dev/da5s1  /mnt
> mount_ntfs: /dev/da5s1: Invalid argument
> )
> 
> When I plug it to one of the two USB3.0 ports (using the xhci driver), I
> don't get device nodes in /dev created for it, but instead an ever
> growing list of
> 
>    ugen4.2: <Jmicron Corp.> at usbus4
>    umass2: <Jmicron Corp. Usb production, class 0/0, rev 2.10/1.00, addr 1> on usbus4
>    ugen4.2: <Jmicron Corp.> at usbus4 (disconnected)
>    umass2: at uhub4, port 4, addr 1 (disconnected)
> 
> The USB3.0 ports otherwise work fine with a 16BG USB3.0 Stick. Windows 7
> can use the disk as well on the USB3.0 port, which makes me look for
> things I have missed. For example, my kernel config is stripped down
> quite a bit, so it might be that my custom kernel does not have all the
> necessary drivers built in or kldloaded. Do I need "device ada"? What is
> the magic needed to hook up 4k secotr drives via USB3.0?
> 
> Regards,
> 
>    Jens
> -- 
> Jens Schweikhardt http://www.schweikhardt.net/
> SIGSIG -- signature too long (core dumped)
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Logic dictates that you try with GENERIC, see if that works any better ;)