mpt(4) cuts 3TiB drives down to 2TiB

[Michael Reifenberger]

On Sun, 8 May 2011, Michael Fuckner wrote:

> Date: Sun, 08 May 2011 15:53:43 +0200
> From: Michael Fuckner <michael at fuckner.net>
> To: Michael Reifenberger <mike at reifenberger.com>
> Cc: FreeBSD-SCSI <scsi at freebsd.org>
> Subject: Re: mpt(4) cuts 3TiB drives down to 2TiB
> 
> On 05/08/2011 02:13 PM, Michael Reifenberger wrote:
>> Hi,
>> the manpage of mptutil states that mpt(4) doesn't support volumes
>> greater 2TiB,
>> it suggests to use the disks in JBOD mode.
>> 
>> Even this seems only to work for disk with less than 2TiB.
>> 
>> When attaching a Hitachi 7k3000 drive on the LSI SAS/SATA ports of a
>> Supermicro X8ST3-F board I only see 4294967294 sectors while I get
>> 976773168 sectors when
>> attaching to the on board SATA ports.
>> 
>> This leaves the onboard LSI controller useless for bigger disks.
> Hi all,
>
> This is probably due to old firmware- I've seen similar a while ago and I'm 
> not sure if there is a firmware capable of >2TiB.
>
> You should check in Controllerbios/ Post Screen if the drive is detected as 2 
> or 3TB.
>
> Imho this issue is not related to FreeBSD.
>

Yes. Seems so.
The drive is detected as 2TiB drive.
I'll try to contact Spermicro if the is a different firmware available.

Thanks for the hint anyway!

Bye/2
---
Michael Reifenberger
Michael at Reifenberger.com
http://www.Reifenberger.com