Linux disk array Management instance

RAID English full name redundant array of independent disks meaning "Independent disk redundancy", referred to as the disk array.

RAID0 is used to extend the disk, the disadvantage if a hard drive breaks down the system crashes; RAID1 is one to do the storage of a mirrored backup, must be an even number of hard drives, wasting disk space; RAID10 is a combination of RAID0 and RAID1 advantages to form a disk array RAID5 is a part of each disk that is mirrored and requires at least three disks.

Environment: centos5.6

We first add a new 10G disk:

We fdisk-l, view the disk status to see that the new disk is currently unavailable

Making a RAID0 disk array

FDISK/DEV/SDB//Create a new partition

We then type N to create a new partition, try to create an extended partition, press E to establish an extended partition, enter the partition number, then assign the partition size, we allocate all the sizes, and then press ENTER from 1 to allocate all the sizes. Finally press p to view.

The extended partitions are established, the logical partitions are started, and the new partitions are started by N. Press "L" to establish logical partitions, using "+100MB" to allocate a space of 100MB size, press p to view it. Logical partitions start at 5.