"CentOS 7.1" Mount 3T

The traditional MBR partition table can only support 2T of addressing space, so if you use MBR as partition table, then 3T hard disk can only use 2T of space

[Email protected] ~]# df-h

File system capacity has been used with available% mount points

/dev/mapper/centos-root 50G 5.1G 45G 11%/

Devtmpfs 16G 0 16G 0%/dev

Tmpfs 16G 0 16G 0%/dev/shm

Tmpfs 16G 9.1M 16G 1%/run

Tmpfs 16G 0 16G 0%/sys/fs/cgroup

/DEV/SDC1 2.0T 33M 2.0T 1%/mnt/data2 ******

/DEV/SDB1 2.0T 33M 2.0T 1%/mnt/data1 ******

/dev/mapper/centos-home 1.8T 36M 1.8T 1%/Home

/DEV/SDA1 497M 168M 329M 34%/boot

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Parted

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[Email protected] ~]# Parted/dev/sdb

GNU Parted 3.1

Using/dev/sdb

Welcome to GNU parted! Type ' help ' to view a list of commands.

(parted)

(parted) Help

Align-check type N check partition N for TYPE (min|opt)

Alignment

Help [COMMAND] Print general help, or help on

COMMAND

Mklabel,mktable Label-type Create a new Disklabel (partition

Table

Mkpart Part-type [Fs-type] START END make a partition

Name Number name name partition number as name

Print [devices|free|list,all| Number] Display the partition table,

Available devices, free space, all found partitions, or a particular

Partition

Quit Exit Program

Rescue start END Rescue a lost partition near START

and END

RM Number Delete Partition number

Select Device Choose the DEVICE to edit

Disk_set flag State Change the FLAG on selected device

Disk_toggle [flag] toggle the state of flags on selected

Device

Set number flag state change the FLAG on partition number

Toggle [Number [FLAG]] toggle the state of FLAG on partition

Number

Unit unit Set the default unit to unit

Version display the version number and

Copyright information of the GNU Parted

(parted)

(parted) Mklabel GPT

Warning: The existing disk label On/dev/sdb'll is destroyed and all data on this

Disk would be lost. Want to continue?

Is/yes/no/no? Yes

(parted)

(parted) Mkpart primary 0-1

Warning: The resulting partition is not a properly aligned for best performance.

Ignore/ignore/abandon/cancel? Ignore

(parted) Print

Model:ata WDC wd3000fyyz-0 (SCSI)

Disk/dev/sdb:3001gb

Sector size (logical/physical): 512b/512b

Partition TABLE:GPT

Disk Flags:

Number Start End Size File system Name Flag

1 17.4kB 3001GB 3001GB Primary

(parted)

"CentOS 7.1" Mount 3T