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who invented hard disk?
Disk mirroring
disk mirroring
Level 1
Drive Duplexing.
RAID level 1
RAID 1. Redundant Array of Independent Disks.
The computer floppy disk was invented in the United States.
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.
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.
It Was Invented In 1982
RAID 0 is "Stripping" and RAID1 is "Mirroring". RAID0 doesn't provide fault tolerance but RAID1 does provide fault tolerance because it has a every disk has a mirrored disk so that in case of disk failure the other disk can be used.