Do you have a Commodore A2091 SCSI Controller board inside your Amiga 2000? If not, I highly recommend that you buy one. I just bought today an A2091 with 2 megs of memory from eBay for less then $10.00 and that included the shipping. The A2091 is the best SCSI Controller card that you can get for an Amiga 2000. In fact, it is such a nice card that even Amiga 4000 owners use them in their computers. When you buy an A2091 board make sure that you get the software too. Here are the steps to properly formatting a hard drive on an Amiga 2000:
You must first define the new drive type and save it to the disk in DF0. Second, do a low-level format. Then verify the data on the drive, this will check the hard disk for bad blocks. Next you should partition the hard disk, the default is 2 equal sized partitions. after this is done, reboot your machine using control + left Amiga + right Amiga. DO NOT TURN THE AMIGA OFF AND THEN BACK ON (cold boot)! After workbench (from the A2091 disk in DF0) loads back up, you will see an icon for each of your partitions. The letter in front of DH0, DH1, etc. is the first letter of the actual name of the hard drive. For instance, if the hard drive is a Quantum then the icons will be named QDH0, QDH1, and so on. Now initialize each partition just like you would if you were formatting a disk. Please keep in mind that formatting an Amiga hard drive can take a long time. A 1 Gig hard drive usually takes about 2.5 hours to fully initialize. 2 to 4 gig drives take even longer. After the hard drive is formatted turn the computer off for about 30 minutes. After formatting for that long, the hard drive will usually be quite hot, so it must be allowed to cool down a bit before copying Workbench over to it. If you fail to allow for the cool-down period the hard drives life will be shortened. To copy Workbench just copy each disk, one at a time, to the hard drive by dragging the disk icon over to the hard drive icon and dropping it. You can also use a program like DiskMaster (that's what I use). These instructions are for Workbench 1.3. I hope this helps you :-D