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Allocation Unit Size Explained – What to Set Allocation Unit Size to When Formatting
When you format a hard drive, one of the choices you can make is how big the allocation unit is. Most people just leave it at the recommended default and go on with their lives.
But have you ever wondered what the effect will be if you change the size of that number? Is the default number the best for your needs? Let's take a look at which allocation unit is best for you. It's actually less complicated than you think!
Before we get into allocation units specifically, we need to talk a little bit about disk formats. When a disk is unformatted, the physical disk space is like a wide open field. When you format the disk, it becomes organized into addresses, as if that wide open field were divided into little pieces of land.
