Statement: When RAID 2.0+ is used, a thick LUN consists of extents and a thin LUN consists of grains. Is this statement True or False?

Statement: When RAID 2.0+ is used, a thick LUN consists of extents and a thin LUN consists of grains. Is this statement True or False?

• A. True
• B. False
• C. Not Applicable
• D. Cannot Be Determined

Answer: (A)

Understanding LUN provisioning units helps explain this. Thick provisioning reserves the entire LUN upfront, using larger allocation units called extents to allocate and reserve space. Thin provisioning allocates space on demand and builds the LUN from smaller allocation units called grains, allowing space to be used more flexibly as data is written. In RAID 2.0+ environments, thick LUNs are indeed composed of extents, while thin LUNs are composed of grains. Therefore, the statement is true.

Understanding LUN provisioning units helps explain this. Thick provisioning reserves the entire LUN upfront, using larger allocation units called extents to allocate and reserve space. Thin provisioning allocates space on demand and builds the LUN from smaller allocation units called grains, allowing space to be used more flexibly as data is written. In RAID 2.0+ environments, thick LUNs are indeed composed of extents, while thin LUNs are composed of grains. Therefore, the statement is true.