Unable to create 6TB partition

OCS_MCT · 11-15-2005, 09:16 AM

I'm setting up a Linux system using the following configuration

Server : DELL PE 6850, Xeon 3 GHz, 4 Processor, 16 GB RAM, 2x36 GB- RAID 1.

Storage : EMC CX500 with 6 TB capacity, Qlogic HBA 2342 2GBPS Speed.

OS : Red Hat Enterprise Linux V.4 AS (Update 2) , 2.6 Kernel

Server Installation went fine without any problem and LUN also created at storage level.

The LUN Size is 6TB single volume. The OS is identifying the LUN as /dev/sdb for the whole size 6TB. When I trying to create a entire space as a single partition i am getting the error "value out of range", by default it's creating the partition size

of 1.7 TB. I'm not in position to create big Partition for 6TB.

I refer the red hat site, RHEL V.4 AS kernel v 2.6.9 will support up to 8 TB.

But it s not happening at real scenario.

Can anybody tell how to create single 6TB partition & mount on RHEL 4.0 AS.

Keruskerfuerst · 11-16-2005, 06:35 AM

What type of filesystem do you want to create?

kbuk · 11-16-2005, 08:40 AM

What are you using to partition the disk?
What do you get the error, when you partition or when you try to create the filesystem?

OCS_MCT · 11-19-2005, 05:16 AM

Hi Kerusker, I'm trying to create ext3

OCS_MCT · 11-19-2005, 05:20 AM

My only problem is creating partition for the size of 6TB. After creating partition, I can use either ext2 or ext3 file system, but the issue is Partition for single 6TB disk.

OCS_MCT · 11-19-2005, 05:24 AM

I used “fdisk” and “parted” utilities. Using both I could not create. The maximum partition size in “Fdisk” is 1.7 TB, and the maximum partition size in “parted” is 1.5 TB, in fdisk, If I specify maximum cylinder size, It’s giving value out of range.

akudewan · 11-19-2005, 05:40 AM

Maybe you could try using ReiserFS filesystem, but 'm no expert in this regard

akudewan · 11-19-2005, 05:48 AM

A quick google gave me this page, http://mirror.centos.org/centos/4/do...TES-U1-en.html I don't understand most of it, but it might help you:

Quote:

The commonly-used MS-DOS partition table format can not be used on devices larger than 2 TB. For devices larger than 2 TB, the GPT partition table format must be used. The parted utility must be used for the creation and management of GPT partitions. To create a GPT partition, use the parted command mklabel gpt.