Adding new disk partition more than 2TB in Centos/RHEL/Linux
First of all take a look on all disks installed in your system to be sure you are not mix up anything:
lsblk -io KNAME,TYPE,SIZE,MODEL
The disk drives in Centos is named hd* or sd*. In system with few HDDs you should receive following output:
ls /dev/sd* /dev/sda /dev/sda1 /dev/sda2 /dev/sda3 /dev/sdb /dev/sdb1 /dev/sdb2 /dev/sdb3 /dev/sdc /dev/sdc1 /dev/sdd
In our example we've added disk /sdd
next start parted on the empty/new added disk:
parted /dev/sdd GNU Parted 2.1 Using /dev/sdd Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) mklabel gpt Warning: The existing disk label on /dev/sdd will be destroyed and all data on this disk will be lost. Do you want to continue? Yes/No? yes (parted) unit TB (parted) mkpart primary 0.00TB 4.00TB (parted) print Model: ATA WDC WD4003FZEX-0 (scsi) Disk /dev/sdd: 4.00TB Sector size (logical/physical): 512B/4096B Partition Table: gpt Number Start End Size File system Name Flags 1 0.00TB 4.00TB 4.00TB ext4 primary (parted) quit Information: You may need to update /etc/fstab.
Use makefs next:
mke2fs 1.41.12 (17-May-2010) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=1 blocks, Stripe width=0 blocks 244195328 inodes, 976754176 blocks 48837708 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=4294967296 29809 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 102400000, 214990848, 512000000, 550731776, 644972544 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 38 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override.
And finally mount in previously created dir:
mount /dev/sdd1 /backups/
ALso remember to edit /etc/fstab in oder to mount partition automatically on boot