RAID

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Author:
tntflashcards
ID:
286859
Filename:
RAID
Updated:
2014-10-23 23:11:14
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tntraid
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tnt raid
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  1. RAID
    Redundant Array of Independent Disks
  2. Describe Raid 0
    • Striping.
    • Minimum number of disks: 2
    • Maximum number of disks: 2
    • Read: Great
    • Write: Great

    • Overhead: 50% (1 disk)
    • No redundancy
  3. Describe RAID 1
    Mirroring (Exact copy on each disk)

    • Minimum number of disks: 2
    • Maximum number of disks: 2
    • Read: Good
    • Write: OK (stock)

    • Overhead:
    • 50% (1 disk)

    You can loose up to one disk
  4. Describe Raid 5
    Striping + Parity

    • Minimum number of disks: 3
    • Maximum number of disks: infinite (controller maximum)
    • Read: Good
    • Write: OK (stock)

    • Overhead:
    • 66%

    You can look up to one disk
  5. Describe Raid 6:
    Striping + Double Parity

    • Minimum number of disks: 4
    • Maximum number of disks: infinite (controller maximum)
    • Read: OK
    • Write: Slow

    • Overhead:
    • 50%

    You can loose upto two disks
  6. Describe RAID 10
    Striping+ Mirroring

    • Minimum number of disks: 4
    • Maximum number of disks: infinite (controller maximum)
    • Read: Great
    • Write: Good

    • Overhead:
    • 50%

    you can loose2 disks (50% best case; 1 drive worst case)

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