A user is trying to pre-warm a blank EBS volume attached to a Linux instance. Which of the below mentioned
steps should be performed by the user?

A.
There is no need to pre-warm an EBS volume

B.
Contact AWS support to pre-warm

C.
Unmount the volume before pre-warming

D.
Format the device

Explanation:
When the user creates a new EBS volume or restores a volume from the snapshot, the back-end storage
blocks are immediately allocated to the user EBS. However, the first time when the user is trying to access a
block of the storage, it is recommended to either be wiped from the new volumes or instantiated from the
snapshot (for restored volumes. before the user can access the block. This preliminary action takes time and
can cause a 5 to 50 percent loss of IOPS for the volume when the block is accessed for the first time. To avoid
this, it is required to pre warm the volume. Pre-warming an EBS volume on a Linux instance requires that the
user should unmount the blank device first and then write all the blocks on the device using a command, such
as “dd”.