This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
Yes. If you have a RamFAST, you also have the option of using the RamFAST utilities. These are on ROM on the RamFAST board. They should be copied to disk or hard disk and run from there. RAMFAST.SYSTEM will handle ProDOS partitioning and low-level formatting. Since Zip disks are already formatted, you will, mainly, be concerned with setting up partitions. On a 100MB Zip disk, the best partitioning is three 32MB ProDOS volumes. Setting up partitions takes less than a minute. A low-level reformat of a 100MB Zip disk may take 10 minutes or more. By: Rubywand