Level 0 RAID, also known as RAID 0, stores information on a disk by striping data across multiple drives without redundancy. This means that data is split into blocks and distributed evenly among the available disks, which enhances performance and increases storage capacity. However, RAID 0 offers no fault tolerance; if one drive fails, all data in the array is lost. This setup is ideal for applications requiring high speed but not necessarily data protection.
Raid 5
Level 1
Disk mirroring
RAID 3
Explain the access mechanism of a Magnetic disk. How is this access mechanism different in RAID level 5?
That would be RAID 1.
RAID level 1
Raid 1 suppports the Mirroring if any one hard disk faild one will get the copy of the data and fault tolerent. after replacing the hard disk you have to re create the mirroring. Raid 5 supports stripped with parity the data will be deviced into blocks and stored in all the drives with the parity information. if any one or two hard disks faild the data will be available.
Every RAID level stripes data across multiple drives, which improves performance compared to using a single disk. RAID 0, RAID 1, RAID 1+0, RAID 5, RAID 6, etc. all have better performance than a single disk. Other than RAID 0, all other RAID levels provide fault tolerance. RAID 1, RAID 1+0, RAID 5, RAID 6, etc. all have fault tolerance.
RAID 1 is known as mirroring. In this RAID level, data is duplicated across two or more disks, ensuring that an exact copy exists on each disk. This provides high availability and data redundancy, as if one disk fails, the data remains accessible from the other disk(s). However, it requires double the storage capacity for the same amount of data.
RAID-5
RAID 1, RAID 1 + 0, and RAID 5, 6.