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How Do I Use the Total Capacity of the Disk Arrays When RAID Member Disks Larger than 2 TB Are Used for an RH5885 Server

Publication Date:  2019-04-16 Views:  166 Downloads:  0

Issue Description

On an RH5885 server, two 600 GB SAS disks are grouped as RAID 1 serving as the system disks (assuming that RedHat 6.2 is installed) and four 4 TB disks are grouped as RAID 5 serving as the data disks. After the system installation is complete, how do I use RAID 5 as data disks?


1. Run the fdisk -l command to query the partition information. The /dev/sdb disk is not partitioned, as shown in the following figure.

2. Run the parted /dev/sdb command and partition the /dev/sdb disk in the GPT style.

Note that all the information pointed by red arrows in the following figures must be entered.

3. Run the fdisk -l command to query the partition information again. It is found that the partition system of the /dev/sdb1 disk has been changed to GBT, as shown in the red circle.

4. Format the disk into a file system and mount the disk to the required directory for data use. You can run the df -h command to query the mounting status.