raid array trouble > 2TB - freebsd 5.4 install
Bernd Walter
ticso at cicely12.cicely.de
Wed May 11 06:11:14 PDT 2005
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
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