Answer to Question #289765 in Computer Networks for Timmy

Question

There is a Network Attached Storage device used as NFS share for a file server. NAS is built using RAID 6 array. Please describe the consequences for the file server if 1 disk fails on the NAS. If 2 disks fail? And finally, if 3 disks fail on the NAS simultaneously.

Answer 1

There is a Network Attached Storage device used as NFS share for a file server. NAS is built using RAID 6 array. Please describe the consequences for the file server if 1 disk fails on the NAS. If 2 disks fail? And finally, if 3 disks fail on the NAS simultaneously.

Answer:

Network Attached Storage device  (NAS) is simple to operate and it does not need an IT  professional to operate it .it also has easy data backup and recovery.

On the other hand RAID 6 array is a redundant array of independent disks. It work by placing data on multiple disks and allowing Input/output (I/O) operations to develop in a balanced way, improving performance.

If 1 disk fails-it changes to Degraded. If a disk is marked as fails ,replace t as soon as possible .But if a hot spare disk is available ,the controller can rebuild the data on the disk automatically.

If 2 disk fails-because of the use of RAID 6 it can handle exactly two disk failures.

If 3 disks fails-Raid array stores data redundantly, meaning ,there is extra data placed on the drives which can allow other data to be recovered if failure occurs. NAS does magic by setting up the newly replaced drive within a couple of hours.