Accessing SCSI-Devices >2TB

[Raphael H. Becker]

On Wed, Jun 08, 2005 at 04:24:10PM +0200, Bernd Walter wrote:
> > And 1kb would extend the 2TB limit to 4TB, what would work for me here.
> 
> Obviously, but that's not required - you can have SCSI disks with more
> than 2^32 512 Byte blocks since more than 2 years.

Then we might have some other problems accessing that RAID. When
configured as a large 2620354MB logical drive (no logical drive partitions):

[...]
(da1:ahc1:0:0:0): No or incomplete CDB sent to device.
(da1:ahc1:0:0:0): Protocol violation in Message-in phase.  Attempting to abort.
(da1:ahc1:0:0:0): Abort Message Sent
(da1:ahc1:0:0:0): SCB 9 - Abort Completed.
(da1:ahc1:0:0:0): No or incomplete CDB sent to device.
(da1:ahc1:0:0:0): Protocol violation in Message-in phase.  Attempting to abort.
(da1:ahc1:0:0:0): Abort Message Sent
(da1:ahc1:0:0:0): SCB 14 - Abort Completed.
(da1:ahc1:0:0:0): No or incomplete CDB sent to device.
(da1:ahc1:0:0:0): Protocol violation in Message-in phase.  Attempting to abort.
(da1:ahc1:0:0:0): Abort Message Sent
(da1:ahc1:0:0:0): SCB 9 - Abort Completed.
(da1:ahc1:0:0:0): No or incomplete CDB sent to device.
(da1:ahc1:0:0:0): Protocol violation in Message-in phase.  Attempting to abort.
(da1:ahc1:0:0:0): Abort Tag Message Sent
(da1:ahc1:0:0:0): SCB 14 - Abort Tag Completed.
(da1:ahc1:0:0:0): No or incomplete CDB sent to device.
(da1:ahc1:0:0:0): Protocol violation in Message-in phase.  Attempting to abort.
(da1:ahc1:0:0:0): Abort Tag Message Sent
(da1:ahc1:0:0:0): SCB 9 - Abort Tag Completed.
(da1:ahc1:0:0:0): got CAM status 0x54
(da1:ahc1:0:0:0): fatal error, failed to attach to device
(da1:ahc1:0:0:0): lost device
(da1:ahc1:0:0:0): No or incomplete CDB sent to device.
(da1:ahc1:0:0:0): Protocol violation in Message-in phase.  Attempting to abort.
(da1:ahc1:0:0:0): Abort Tag Message Sent
(da1:ahc1:0:0:0): SCB 9 - Abort Tag Completed.
(da1:ahc1:0:0:0): No or incomplete CDB sent to device.
(da1:ahc1:0:0:0): Protocol violation in Message-in phase.  Attempting to abort.
(da1:ahc1:0:0:0): Abort Tag Message Sent
(da1:ahc1:0:0:0): SCB 14 - Abort Tag Completed.
(da1:ahc1:0:0:0): No or incomplete CDB sent to device.
(da1:ahc1:0:0:0): Protocol violation in Message-in phase.  Attempting to abort.
(da1:ahc1:0:0:0): Abort Tag Message Sent
(da1:ahc1:0:0:0): SCB 9 - Abort Tag Completed.
(da1:ahc1:0:0:0): No or incomplete CDB sent to device.
(da1:ahc1:0:0:0): Protocol violation in Message-in phase.  Attempting to abort.
(da1:ahc1:0:0:0): Abort Tag Message Sent
(da1:ahc1:0:0:0): SCB 14 - Abort Tag Completed.
(da1:ahc1:0:0:0): No or incomplete CDB sent to device.
(da1:ahc1:0:0:0): Protocol violation in Message-in phase.  Attempting to abort.
(da1:ahc1:0:0:0): Abort Tag Message Sent
(da1:ahc1:0:0:0): SCB 9 - Abort Tag Completed.
(da1:ahc1:0:0:0): removing device entry
Opened disk da1 -> 5
[...]

Using 1 logical drive with two partitions mapped to two LUNs (resulting
in da1 and da2 in FreeBSD) works perfectly. 

BTW: I'm actually running a nearly-GENERIC kernel 5.4-RELEASE here, just
with 
        options SMP
        device ccd 

added. Maybe I will need some other options? What about GEOM? 

But for me it smells more about the SCSI-protocol between RAID and
Controller (Adaptec 39160), something about LBA-64?
Maybe running -current will give me this feature?

Running ccd upon a partitioned RAID is "A Bad Idea[tm]".

Any pointers to documentation? Maybe I just need some deeper
knowledge about whats going on here.

Regards
Raphael Becker