How to use an external USB3.0 drive with 4k sectors?
freebsd at dreamchaser.org
Thu May 31 18:49:52 UTC 2012
On 05/31/12 09:57, Jens Schweikhardt wrote:
> 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)
> # diskinfo -v 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?
According to the handbook you need all of the following drivers:
scbus da pass uhci ohci ehci usb umass
Don't know if this helps, but 512K sectorsize on usb 3 seems to work fine here:
%diskinfo -v da0
512 # sectorsize
1500301909504 # mediasize in bytes (1.4T)
2930277167 # mediasize in sectors
0 # stripesize
0 # stripeoffset
182401 # Cylinders according to firmware.
255 # Heads according to firmware.
63 # Sectors according to firmware.
NA05EA2N # Disk ident.
ugen0.2: <Seagate> at usbus0
umass0: <Seagate FreeAgent GoFlex, class 0/0, rev 3.00/1.00, addr 1> on usbus0
umass0: SCSI over Bulk-Only; quirks = 0x4100
umass0:8:0:-1: Attached to scbus8
da0 at umass-sim0 bus 0 scbus8 target 0 lun 0
da0: <Seagate FreeAgent GoFlex 211> Fixed Direct Access SCSI-0 device
da0: 400.000MB/s transfers
da0: 1430799MB (2930277167 512 byte sectors: 255H 63S/T 182401C)
Plugging it in adds only da0, da0s1, and ugen0.2 to /dev
My disk is bigger than what you're dealing with but not the big sector size;
can't say about that difference.
More information about the freebsd-questions