Redundant
Array of Independent / Inexpensive Disk In
raid level we can connect more than 1 means 2 HDD or more in 1 PC. RAID0 called as Stripped , possible with 2 or 3
HDD. Strip
is for users who wants more space Like 3 HDD of 80 GB become 1
Logical Volume of 240 G.B. RAID1 Mirror
# it’s copy all data from 1 Hdd to 2 Hdd As data comes in first HDD It will give allot only 80 G.B space from 2 X 80 G.B Hdd. Minimum
2 Hdd Required. RAID5 Minimum 3 HDD required. It’s fault tolerant Array. In
short Stripe with parity code. IF
Hdd Array In RAID5 it’s write data as
following. how it writes “ REDUNDANT “ in RAID 5.
HDD1 HDD2
HDD3 Here (p) is party code written by RAID5 Controller. If any single drive goes down how ever we will able to recover redundant word from (p) code and remaining HDD. |
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