CentOS Show HDD

In CentOS, there are different commands that can be used to display information about the hard disk drives (HDD) attached to the system. These commands provide various details such as disk capacity, partitions, filesystem types, and more.

1. fdisk

The fdisk command is used to display and manage the partition table of a hard disk. It can be used to show information about all the HDDs attached to the system.

To display information about the HDDs, run the following command:

fdisk -l

This command provides a detailed output that includes disk sizes, disk type, partition sizes, and filesystem types.

2. lsblk

The lsblk command can be used to display information about block devices attached to the system, including HDDs. It provides a tree-like representation of the devices.

To show information about the HDDs using lsblk, use the command:

lsblk

This command displays information such as device names, disk sizes, partition details, and mount points.

3. blkid

The blkid command is used to print the block device attributes, including the filesystem or partition label of the devices.

To display information about the HDDs using blkid, run the following command:

blkid

This command provides output with details like device names, filesystem types, UUIDs, and labels for HDDs.

4. smartctl

The smartctl command is used to monitor and display the SMART (Self-Monitoring, Analysis, and Reporting Technology) attributes of the HDD. It provides information about the health and status of the disk.

To check the SMART attributes of a HDD, use the following command:

smartctl -a /dev/sdX

Replace /dev/sdX with the appropriate device name. This command will display detailed information including disk temperature, error log, and various SMART attributes.

Conclusion

In this introduction, we explored various commands available in CentOS to display information about HDDs. These commands allow programmers to gather essential details about the disks attached to the system, facilitating debugging, and monitoring of storage devices.

Remember to use the appropriate privileges or switch to the root user when running these commands for successful execution.