who invented hard disk?
Drive Duplexing.
Disk mirroring
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disk mirroring
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.
The history of hard disk is that, hard disk is invented in 1950's that time hard disk size is 20 inche's maximum the name of hard disk inventer is "REY JOHNSON" by the help of IBM team. ""BILAWAL ABBAS""
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Reynold Johnson
Level 1
RAID level 1
RAID 1. Redundant Array of Independent Disks.
The hard disk drive was invented by some IBM engineers working under Rey Johnson at IBM in San Jose, CA, in about 1952 to 1954.