Which statement about SmartThin is NOT true?

Which statement about SmartThin is NOT true?

• A. LUN whose capacity is greater than the maximum physical available capacity of the storage pool cannot be created.
• B. SmartThin implements on-demand allocation.
• C. SmartThin does not allocate all space in advance. It presents a virtual storage space larger than the physical storage space.
• D. SmartThin virtualizes storage resources.

Answer: (A)

SmartThin relies on thin provisioning to present more virtual storage than is currently physically allocated. It allocates actual blocks only when data is written, so you can create a LUN whose configured size is larger than the pool’s currently free space. The pool’s total physical capacity is the ceiling, but creation of a larger-than-free-space LUN is allowed because allocation happens on demand. That’s why the statement claiming such a LUN cannot be created is not true. The other points align with how SmartThin works: it implements on-demand allocation, does not allocate all space upfront, and it virtualizes storage resources.

SmartThin relies on thin provisioning to present more virtual storage than is currently physically allocated. It allocates actual blocks only when data is written, so you can create a LUN whose configured size is larger than the pool’s currently free space. The pool’s total physical capacity is the ceiling, but creation of a larger-than-free-space LUN is allowed because allocation happens on demand. That’s why the statement claiming such a LUN cannot be created is not true. The other points align with how SmartThin works: it implements on-demand allocation, does not allocate all space upfront, and it virtualizes storage resources.