SK0-003 · Question #594
Which of the following is an advantage of hardware RAID over software RAID?
The correct answer is C. Hardware RAID has better performance than software RAID. Hardware RAID provides a significant performance advantage over software RAID because it utilizes a dedicated controller to manage disk operations, offloading processing from the main CPU.
Question
Which of the following is an advantage of hardware RAID over software RAID?
Options
- AHardware RAID costs less than software RAID.
- BHardware RAID is built into the operating system's software.
- CHardware RAID has better performance than software RAID.
- DHardware RAID requires no configuration and software RAID does.
How the community answered
(31 responses)- A3% (1)
- C94% (29)
- D3% (1)
Why each option
Hardware RAID provides a significant performance advantage over software RAID because it utilizes a dedicated controller to manage disk operations, offloading processing from the main CPU.
Hardware RAID typically involves the purchase of a dedicated controller card, making it generally more expensive than software RAID.
Hardware RAID is implemented by a physical controller card, whereas software RAID is a feature built into the operating system.
Hardware RAID employs a dedicated processor and memory on a RAID controller card to manage the disk array and I/O operations. This dedicated hardware offloads these intensive tasks from the server's main CPU, resulting in superior performance and lower CPU utilization compared to software RAID, which relies on the host CPU and memory.
Both hardware and software RAID solutions require configuration to define RAID levels and set up the disk array according to specific requirements.
Concept tested: Hardware RAID vs. Software RAID performance
Source: https://www.ibm.com/docs/en/STGMRG/2.6.0/com.ibm.storagemic.help.doc/h_software_raid.html
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