RAID5
RAID5 is a storage performance, data security and storage costs into account storage solutions, it can be understood as RAID0 and RAID1 compromise. RAID 5 role is to provide security for the data system. And the data corresponding thereto parity information stored on the respective disks in RAID5. When a RAID5 disk data corruption, the use of the remaining data and parity information corresponding to recover corrupted data.
Advantages: data security, read and write speed, a high space utilization, storage costs are relatively low; support to ensure access to the data in the normal case of a disc off-line.
Disadvantages: the future, if a disk fails, the whole system performance will be greatly reduced.
Composition conditions: the same size of the disk at least three.
Raid5 need to create at least three disks, taking into account the actual production, we also need to configure a spare disk, so here we need to add a total of four disk and partition it with the file system type of modification.
You create the partition we can use them to build our raid5 rolled.
Once created you must remember to check the results of our creation.
raid5 volume has also been created, but then if you want to actually use raid5 also need to be formatted and mounted.
