Date: Wed, 8 Jun 2005 17:43:31 +0200 From: Bernd Walter <ticso@cicely12.cicely.de> To: "Raphael H. Becker" <rabe@p-i-n.com> Cc: freebsd-current@freebsd.org, ticso@cicely.de Subject: Re: Accessing SCSI-Devices >2TB Message-ID: <20050608154331.GC9844@cicely12.cicely.de> In-Reply-To: <20050608165527.G41471@p-i-n.com> References: <20050608122324.C41471@p-i-n.com> <42A6D850.2070603@centtech.com> <20050608123953.GG95969@cicely12.cicely.de> <20050608154312.D41471@p-i-n.com> <20050608135229.GK95969@cicely12.cicely.de> <20050608161548.F41471@p-i-n.com> <20050608142409.GM95969@cicely12.cicely.de> <20050608165527.G41471@p-i-n.com>
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On Wed, Jun 08, 2005 at 04:55:27PM +0200, Raphael H. Becker wrote: > 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. Obviously something wents wrong. You might want to add CAM and/or ahc debugging. Asking on freebsd-scsi list would also a good idea. > 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. -- B.Walter BWCT http://www.bwct.de bernd@bwct.de info@bwct.de
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