2.5 TB iSCSI Raid - one partition problem

Cameron Simpson cs at zip.com.au
Sat Jun 28 06:01:33 UTC 2008


On 27Jun2008 17:02, G?tz Reinicke <goetz.reinicke at filmakademie.de> wrote:
> I got a new iscsi raid with 6*500GB disks and set it up as one volume.
> The volume got mounted, but I only can create a partition of about 275GB ...
> I tried fdisk (util-linux 2.13-pre7), the original parted and a fresh  
> compiled parted 1.8.8, but I do get errors from parted or fdisk only  
> allows me to create the partition of the mentioned size. If I try to  
> create a second partition, I do get the fdisk-message, that there are no  
> more sctors free. Verifieing the partition tabel with fdisk shows  
> 2440073647 unused sectors.
>
> The system is centos 5.2 with the latest updates.

The format supported by fdisk is the ancient DOS  partition format.
I suspect you have reached its maximum size.

If this is the issue, I had the same problem on a Gentoo system some
time ago. From memory, I had to:
  - rebuild the kernel with CONFIG_PARTITION_ADVANCED=y and
    CONFIG_OSF_PARTITION=y (I think)
  - reboot in the new kernel so that it would understand
    an OSF partition
  - repartition the disc with gparted (not fdisk) to use the
    new partition format
  - proceed as normal thereafter

This is all from memory, but essentially I needed to change partition
table formats.

Cheers,
-- 
Cameron Simpson <cs at zip.com.au> DoD#743
http://www.cskk.ezoshosting.com/cs/

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