Which command is used to specify partitions for RAID configuration?

In the context of configuring RAID (Redundant Array of Independent Disks) on Linux, the command used is mdadm. This tool is specifically designed to manage and monitor software RAID devices. When setting up a RAID array, mdadm allows you to create, assemble, and manage the RAID levels—such as RAID 0, RAID 1, RAID 5, and others—by specifying which partitions or entire disks will be part of the RAID configuration.

To elaborate on the role of mdadm, it provides a flexible command-line interface for creating RAID arrays from specified partitions or drives, allowing you to define the level of redundancy and performance based on your needs. You can start an array with commands that include the devices in the array, specify RAID levels, and even manage RAID devices for maintenance and recovery.

Other options, while related to filesystem operations, do not serve the purpose of RAID management. For instance, fsck is used for checking the integrity of filesystems, tune2fs modifies tunable filesystem parameters, and dumpe2fs displays superblock and block group information about an ext2/ext3/ext4 filesystem. None of these commands are designed to configure or manage RAID setups,