What is RAID 5?

RAID 5 is a general RAID degree Configuration that Makes use of Block-degree facts striPing and distributes Parity to all of the disks. There continues to be some overhead for the duration of parity calculations, but due to the fact parity is written to all disks, no unmarried drive can be taken into consideration the bottleneck, and I/O operations are unfold lightly across all drives. RAID 5 outperForms RAID four and done recogNition because of the low fee of redundancy it affords.

What Does RAID 5 Mean?

Because RAID 5 stripes statistics and parity bits across all disks, it's miles very tolerant of single disk diSASters, even though this reduces the disk capability barely. If a disk Fails, it definitely has to get replaced and the machine can cross on. Further statistics reads are calculated from the parity so that cease customers do now not even observe the disk failure.

RAID 5 is just like RAID 4, however the Committed force used for parity cHanged into eliminated and changed with a disbursed Algorithm. This resolves the bottlenecks caused by a devoted parity disk.

Advantages:

• Can tolerate the lack of a unmarried pressure
• Good random examine overall performance
• Good sequential examine and write performance

Disadvantages:

• Parity calculation might also sluggish down Device
• Due to parity overhead, random write overall performance takes a success