Linux supports software-based drive arrays, which can be configured through the mdadm utility. Most of the array options are designed to provide some level of data redundancy, but the exact benefits and trade-offs vary.
This RAID 10 mode provides redundancy along with an increase in speed by using half of the total capacity in order to keep copies of all files on two different drives while also striping the data across multiple drives. If one of the drives fails no data is lost, and when replaced the array will re-create the duplicate files. Configuring this option requires four or more drives (in multiples of two) and is a great solution for those who want to protect data from physical failures while also increasing performance.
This RAID 10 mode provides redundancy along with an increase in speed by using half of the total capacity in order to keep copies of all files on two different drives while also striping the data across multiple drives. If one of the drives fails no data is lost, and when replaced the array will re-create the duplicate files. Configuring this option requires four or more drives (in multiples of two) and is a great solution for those who want to protect data from physical failures while also increasing performance.
Redundancy with increased speed - trading half of total capacity for keeping copies of all data on two different drives, while also striping that data to boost performance. Requires 4+ drives. Set up through the mdadm utility.
