Re: raid array trouble > 2TB - freebsd 5.4 install

From: Bernd Walter <ticso_at_cicely12.cicely.de>
Date: Wed, 11 May 2005 15:10:22 +0200
On Wed, May 11, 2005 at 02:52:26PM +0200, Steven Jurczyk wrote:
> general wrote:
> 
> >Hey all, i've had a bit of trouble getting freebsd installed with my 2.5TB 
> >array.  
> >I'm using a 3ware 9500s Raid controller with 12 250G drives.  I've been 
> >through this install before a few months ago when the array was only 1.5TB 
> >installing freebsd 5.3.  
> >
> I have use 3ware 9500s with 12*250 and 12*400G drives. The problem is 
> that sector count variable in partition table and bsdlabel on i386 are 
> 32bit - so maximum size of one partition/label are 2 TB. But You can 
> create (with command line fdisk from FreeBSD 5.x) more partitions on big 
> disk and this works (I have two 2 TB partitions on 4 TB array):
> 
> # df
> Filesystem     Size    Used   Avail Capacity  Mounted on
> /dev/da1s1d    1.9T    1.7T     64G    96%    /matrix1
> /dev/da1s2d    1.9T    1.8T    -59G   103%    /matrix2
> /dev/da0s1d    1.9T    1.7T     57G    97%    /matrix3
> /dev/da0s2d    1.9T    1.7T     95G    95%    /matrix4
> 
> The second solution is using WHOLE disk (without partitioning and 
> disklabeling) for one file system:
> 
> newfs -U /dev/da0
> mount /dev/da0 /mnt

Use gpt to partition large disks.

-- 
B.Walter                   BWCT                http://www.bwct.de
bernd_at_bwct.de                                  info_at_bwct.de
Received on Wed May 11 2005 - 11:11:13 UTC

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