Understanding RAID Configurations and Usable Space

This video tutorial covers RAID 5 and RAID 6, focusing on their use in professional settings. RAID 5 requires at least three drives and offers fast read speeds but slower write speeds without a hardware controller. RAID 6, more durable than RAID 5, can withstand two drive failures but requires at least four drives and is slower to write. The video compares RAID 1, 5, and 6 configurations, highlighting their capacities and redundancy features. It concludes with a call to action for viewers to engage with the content.

What is the main focus of the video?

• RAID 50

• RAID 0 and RAID 1

• RAID 5 and RAID 6

• RAID 10

How many drives are required at minimum to operate RAID 5?

• Three

• Two

• Four

• Five

What is a significant drawback of RAID 5 without a complex hardware controller?

• High cost

• Slow read speeds

• Slow write speeds

• Limited storage capacity

How many drive failures can RAID 6 survive?

• One

• Four

• Two

• Three

What is a major disadvantage of RAID 6 compared to RAID 5?

• Requires fewer drives

• Faster write speeds

• Slower write speeds

• Less data protection

Which RAID configuration is more practical for professional applications?

• RAID 5 and RAID 6

• RAID 1

• RAID 0

• RAID 10

In a four-drive setup, how much usable space does RAID 1 provide?

• 12 terabytes

• 9 terabytes

• 6 terabytes

• 3 terabytes

How much usable space does RAID 5 provide in an eight-drive configuration?

• 18 terabytes

• 12 terabytes

• 21 terabytes

• 24 terabytes

Which RAID configuration can sustain two drive failures?

• RAID 6

• RAID 1

• RAID 5

• RAID 0

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