RAID Controllers and Definitions
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Vocabulary flashcards covering key concepts related to RAID controllers and their functionalities.
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9 Terms
RAID
Redundant Array of Inexpensive Disks or Redundant Array of Independent Disks.
RAID configuration
Stores a second copy of all data across several hard disks for safekeeping.
RAID controller
Manages the RAID array and provides an extra layer of protection and performance.
Logical units
Groups of disks presented to applications by the RAID controller.
Hardware RAID
A RAID configuration that uses a physical controller to manage the array.
Software RAID
A RAID configuration that utilizes the host's hardware resources like CPU and DRAM.
Performance comparison of RAID controllers
Software RAID provides about half the performance of hardware RAID.
Advantages of software RAID
More flexible and affordable compared to hardware RAID.
Disadvantage of software RAID
Requires a powerful host system's processor to maintain application performance.
Flashcards (500)